taxonID	type	description	language	source
03E06914A662FFE91F87FCDA1A034082.taxon	description	(Figures 1 (C), 2, 3, 31 (A, D ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A662FFE91F87FCDA1A034082.taxon	type_taxon	Type species Cyclidinus velutinus Westwood, 1874, by monotypy (Krikken 1976). Taxonomic history	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A662FFE91F87FCDA1A034082.taxon	diagnosis	Diagnosis Cyclidiellus is recognised by the following combination of characters: Body completely opaque black (Figure 2). Clypeus slightly bent upwards in frontal view. Pronotum with a posterolateral emargination and ocellate-punctate on the surface (Figure 2 (C )). Elytra with oval-ocellate sculptures and central punctures (Figure 2 (I )). Protibia with apical tooth almost identical to the other teeth (Figures 2 (D, E )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A662FFE91F87FCDA1A034082.taxon	description	Redescription Same as for the species, since it is monospecific. Geographical distribution Cyclidiellus is known from Brazil (Figure 3).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A663FFE51FF9FF1C1B264082.taxon	description	(Figures 1 (C), 2, 3, 31 (A, D ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A663FFE51FF9FF1C1B264082.taxon	description	Westwood 1874, p. 204 (original description). – Westwood 1878: 30 (redescription). – Schenkling 1921 (catalogue). – Blackwelder 1944: 265 (catalogue). – Krikken 1976: 311 – 313 (new combination). – Krajčik 1999: 43 (catalogue). – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue). Redescription Size: length: 16.9 mm; width: 8.4 mm. Body: Elongate, dorsally flattened. Surface glabrous. Colour: Body dorsally and ventrally black, opaque; palps and antennomeres dark brown, shiny. Eyes black. Head: Clypeus slightly bent upwards in frontal view; frons almost entirely ocellate-punctate, with some rugose areas; antegenal protusion evident, eye-canthus superficially rugose; scape semitriangular, with setae laterally; mentum dilated, rounded (Figure 2 (B )), posterior margin open ‘ V’ - shaped, anteriorly rounded and slightly convex centrally, largely covering the mouthparts. Pronotum: Disc with wide, rounded sides medially, posterolateral emargination, narrowing posteriorly (Figure 2 (C )); posterolateral angle rounded off but distinct; posterior margin broadly rounded; surface evenly convex, fully ocellate-punctate, rugose in some parts near margin. Scutellum: Triangular, surface with large ocellate punctures centrally, discrete punctures or rugose anteriorly. Elytra: Disc elongate, remarkably flat, slightly transverse at the anterior margin, rounded posteriorly (Figure 2 (A, F – G )); one humeral and one anteapical umbone on each elytron; apical angle of elytral suture rounded off. Surface fully ocellate-punctate, and differently punctate, with oval punctures and two central points, mainly in central area of the disc (Figure 2 (I )). Thoracic venter: Hypomerum: Shallowly concave below the procoxa; surface ocellate-punctate and rugose. Prosternum: Narrow anteriorly, forming a pointed projection, setose in anterior region. Mesoventrite: surface ocellate-punctate, often with short setae projected from central edge of the punctures. Mesepisternum: Ocellate-punctate. Mesepimeron: Surface ocellate-punctate, occasionally with short setae emanating from central edge of the puncture; slightly visible dorsally. Metaventrite, metepisternum and metepimeron fully ocellate-punctate, with short setae on the central edge of punctures. Legs: Remarkably long and slender; all tarsal segments subcylindrical, with tarsomere V as long as the other two combined; tarsomeres ocellate-punctate with short setae on the central edge of the punctures. Protibia superficially rugose, with occasional short setae; one apical spur and four teeth: one apical-lateral, one ventro-apical, and two lateral-proximal (Figure 2 (D, E )). Profemur ocellate-punctate and rugose, setose in some areas. Mesotibia shorter than metatibia, both dorsally flattened (Figure 2 (B )), surface ocellate-punctate, with short setae emanating from the central edge of punctures and rugose; two apical spurs, two pairs of apical teeth, and one proximal on mesotibia, with a concave surface, opaque, and rugose between the proximal and apical regions of mesotibia. Metafemur wider than mesofemur, both ocellate-punctate with setae centrally on the punctures (Figure 2 (B )). Procoxa: Rugose with setae, as are the trochanters. Mesocoxa and metacoxa ocellate-punctate with setae centrally on the punctures. Abdomen: Fully ocellate-punctate with setae centrally on the punctures (Figure 2 (B )); propygidial elevation more or less conical around the spiracle of the last visible tergite (Figures 2 (A, F )). Pygidium: Convex, ocellate-punctate, with two parallel drepessions next to the last spiracle. Aedeagus: See Figure 2 (H). Sexual dimorphism The protibiae of females (Figure 2 (E )) are wider than those of males (Figure 2 (D )), and the apical tooth is thinner in males. Morphological variation The patterns of punctuation on the body surface may be better marked in some specimens than in others, as well as the presence of velutinous marks. Geographical distribution Cyclidiellus velutinus is known from Brazil, in the Atlantic Forest biogeographical province (Figure 3). Natural history Bionomics unknown, but association with social insects suspected (Krikken 1976).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A663FFE51FF9FF1C1B264082.taxon	discussion	Remarks Although there is a country label on one of the specimens, we do not think this species actually occurs in Mexico. The mislabelling is probably linked to another species of	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A663FFE51FF9FF1C1B264082.taxon	materials_examined	Type specimens examined (n = 1) Holotype. (Figures 31 (A, D )) Labels [1: printed text on red label] ‘ Type’ / [2: printed text on cream label] ‘ TYPE SP’ / [3: printed text on white label with black margin] ‘ Ex. Musaeu’ / [4: handwritten text on red label] ‘ Cyclidinus velutinus Westw [?] Type [?] ’ / [5: handwritten text on blue label] ‘ Cyclidinus velutinus Westw’ / [6: printed and handwritten text on white label] ‘ Col. Ceton. Det. J. Krikken 1974 ni. Jk 7411 - 1 ’ (1 at MNHN). Non-type specimens examined (n = 3) BRAZIL (2): Espirito Santo: RMNH. INS 1486074 (1 ♀ RMNH). no data: RMNH. INS 1486075 (1 ♂ RMNH). MEXICO (probably wrong locality) (1): (1 MFNB).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66FFFE61FD2FF1C1CFC4752.taxon	description	(Figures 1 (D), 4, 5, 6, 31 (B, C, E ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66FFFE61FD2FF1C1CFC4752.taxon	type_taxon	Type species Cyclidinus lugubris Westwood, 1874, by subsequent designation here. Taxonomic history	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66FFFE61FD2FF1C1CFC4752.taxon	diagnosis	Diagnosis Cyclidinus is recognised by the following combination of characters: clypeal projection bent upwards in frontal view; pronotum hexagonal (Figures 1 (D), 4 (C) – 5 (C )); apical-lateral tooth of protibia as long as the apical spur, wide in lateral view (Figures 4 (D) – 5 (D )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66FFFE61FD2FF1C1CFC4752.taxon	description	Redescription Size: length: 13.8 – 12.0 mm; width: 7.4 – 6.5 mm. Body: Elongate, dorsally flattened, completely or partially velutinous. Colour: Body dorsally mustard yellow, black, or black with mustard yellow macules (Figures 4 (A), 5 (A )); ventrally black, dark reddish brown, or one of these colours covered with a mustard yellow velutinous coating (Figures 4 (B), 5 (B )); mentum, palps and antennomeres black, dark-brownish, or light-brownish. Eyes black, brown, or yellow; if not black, may have black spots. Hind wing yellow-amber with metallic reflection. Head: Clypeal projection bent upwards in frontal view; clypeolateral declivity rounded at the corners. Frons ocellate-punctate and / or rugose; antegenal protusion evident, eye-canthus superficially rugose and often velutinous; scape semitriangular, superficially rugose, with occasional setae on the sides. Mentum with posterior margin broadly ‘ V’ - shaped, rounded at the other corners. Pronotum: Disc hexagonal with obtuse angles, rounded on the sides (Figures 1 (D), 4 (C), 5 (C )); surface irregularly ocellate-punctate, often velutinous. Scutellum: Triangular, surface ocellate-punctate, often velutinous. Elytra: Disc elongate, with a slightly transverse margin anterioly and rounded posteriorly (Figures 4 (A), 5 (A )); with one humeral and anteapical umbone on each elytron; surface heavily oval-ocellate-punctate, often velutinous. Thoracic venter: Hypomerum: Shallowly concave below procoxa; surface rugose or striate convergently. Prosternum: Narrow anteriorly, forming a pointed projection, setose at the anterior base and on the tip. Mesoventrite: Acute angle between middle legs; rugose or differently punctate, with occasional setae. Mesepisternum: Rugose and punctate. Mesepimeron: Rugose, with occasional setae; barely visible dorsally. Metaventrite: With a very evident median sulcus, punctate and ‘ c’ - punctate or ocellate-punctate, velutinous, and with occasional setae. Metepisternum and metepimeron ‘ c’ - puntate or ocellate-punctate, velutinous, with short setae on the lateral sides of the elytra. Legs: Tarsus: Last tarsomere (V) longer than others. Protibia: Ventral and dorsal surfaces rugose, differently punctate and / or convergently striate; sparsely setose occasionally; one apical spur and three teeth: apical-lateral, apical-ventral, and lateral-proximal; apical-lateral tooth as long as the apical spur (Figures 4 (D), 5 (A )), wide when viewed laterally. Profemur: Rugose ventrally and striate dorsally, with setae medially. Mesotibia shorter than Metatibia (Figures 4 (B), 5 (B )), both dorsally flattened and rugose; ventral surface with connecting striations, forming cells, some of which bear setae in the middle; with two pairs of apical teeth and one proximal tooth, presenting a superficially rough concavity between the proximal and apical teeth; two apical spurs. Metafemur wider than mesofemur, both with ventral surface striated, that connect, forming cells, or ocellate-punctate, in both cases with setae emanating from the central edge. Procoxa and mesocoxa rugose and / or striatiate, with connecting cells or punctures, occasionally with setae; the same for trochanter. Metacoxa: Ocellate-punctate, occasionally velutinous. Abdomen: Ventrites ‘ C’ - shaped punctate or ocellate- punctate with setae, glossy and / or velutinous; penultimate ventrite with a slight concavity; spiracle of the last tergite elevated, always visible. Pygidium: Convex, ocellate-punctate, variably velutinous. Geographical distribution Cycidinus is known from Amazon Forest in Brazil, Colombia, French Guiana, and Peru (Figure 6). Key to the species of Cyclidinus Westwood	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66DFFE11FC7FEE11C5A4071.taxon	description	(Figures 4, 6, 31 (B, C, E ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66DFFE11FC7FEE11C5A4071.taxon	description	Westwood 1874, p. 56 (original description). – Schenkling 1921: 375 (catalogue). – Basilewsky 1956: 52 (catalogue). – Krikken 1976: 307 – 315 (taxonomic revision). – Krikken 1981: 411 (taxonomic review). – Krajčik 1999: 42 (catalogue). – Carvajal et al. 2011: 297 (catalogue). – Di Iorio 2013: 87 (distribution and references). – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66DFFE11FC7FEE11C5A4071.taxon	diagnosis	Diagnosis Cyclidinus lugubris is recognised by the following combination of characters: Body dorsally covered with mustard yellow velutinous coating and black spots (Figure 4); clypeolateral declivity steeply sloping down; mentum with posterior margin broadly ‘ V’ - shaped and thickened.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66DFFE11FC7FEE11C5A4071.taxon	description	Redescription Size: length: 13.8 – 12.3 mm; width: 7.4 – 6.6 mm. Colour: Body dorsally covered with mustard yellow velutinous coating and black spots (Figure 4 (A )); ventrally black, dark reddish brown, or one of these colours covered with mustard yellow velutinous coating (Figure 4 (B )). Head: Clypeal projection bent upwards in frontal view, apex without sinuosity; clypeolateral declivity steeply sloping down; mentum with posterior margin broadly ‘ V’ - shaped and thickened, rounded at the other corners. Elytra: Variable velutinous pattern. Pygidium: With two parallel protuberances at the centre. Morphological variation The mustard yellow velutinous coating can be scraped off in some specimens (Figure 31 (B – C )). Geographical distribution Cyclidinus lugubris is known from Amazon Forest, in the North of Brazil, Colombia, and French Guiana, found in the biogeographical provinces of Guiana Lowlands, Imeri, Madeira and Roraima. In Colombia, C. lugubris is recorded outside of Amazon Forest (one specimen from Magdalena biogeographical province) (Figure 6). Natural history The species has been collected via flight interception traps.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66DFFE11FC7FEE11C5A4071.taxon	discussion	Remarks The type specimen of Genuchinus muzo (synonymised here with Cyclidinus lugubris) was collected by Steinheil from Muzo. However, the locality of this specimen is questionable, as there is biogeographical uncertainty regarding whether Cyclidinus lugubris occurs on both sides of the Andes. Although this distribution pattern is not that uncommon, as observed in other species of Cyclidius and even in other Scarabaeoidea species, it warrants further investigation. Basilewsky (1956), in his study of the fauna of the National Upenba Park, reported the presence of Cyclidinus lugubris in the Democratic Republic of the Congo. However, the specimen he illustrated actually belonged to a species of Nyassinus Westwood 1879. This confusion likely arose because both Cyclidinus lugubris and Nyassinus lugubris were described by Westwood in the subsequent years.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66DFFE11FC7FEE11C5A4071.taxon	materials_examined	Type specimens examined (n = 2) Holotype of Cyclidinus lugubris. (Figure 31 (B )) Labels [1: handwritten text on cream label] ‘ Cyclidinus lugubris Westw ♀ ’ / [2: handwritten and printed text on cream label] ‘ Cyclidinus lugubris, Westw. t. 1912 – 1920. O. E. Janson’ / [3: handwritten and printed text on white label] ‘ [? unreadable] J. Krikken 1975 ’ / [4: handwritten text on white label] ‘ [? Unreadable] 7505 ’ / [5: handwritten and printed text on cream label with red margin] ‘ TYPE WESTWOOD Theo [? unreadable] P. 56. T. 11.8.4 Coll. Hope Oxon’. / [6: handwritten and printed text on cream label with black margin] ‘ TYPE: COL: 857 ½ Cyclidinus lugubris Westwood HOPE DEPT. OXFORD’ (1 ♀ at MNHN). Holotype of Genuchinus muzo: (Figures 31 (C, E )) Labels [COLOMBIA] [1: handwritten text on white label] ‘ Muzo’ / [2: handwritten text on white label] ‘ Westwoodi Stainh’ / [3: printed text on white label with black margin] ‘ ExMusaeo E. Steinheil’ / [4: printed text on white label] ‘ Paris: MNHN’ / [5: handwritten and printed text on white label] Genuchinus muzo sp. n. J. Krikken ms 1979 hOLOTYPE / [6: printed text on white label] ‘ Type’ (1 ♂ at MNHN). Non-type specimens examined (n = 8) BRAZIL (05): Acre: Rio Branco, Faz. [Farm] Catuaba, ii. 1997, Vaz-de-Mello (1 ♀ CEMT 00192375); Amazonas: Manaus, ZF 2 Km 14, 2 ° 35 ʹ 21 ” S, 60 ° 00 ʹ 55 ” W, susp flight interception trap 14 m high, 01 – 15. x. 2016, J. A. Rafael and F. F. Xavier F ° (2 ♀ CEMT 00192373 – 00192374); Tabatinga, ix. 1956, F. M. Oliveira (1 ♀ CMNC); Mato Grosso: CotriguaÇu, Faz. São Nicolau, 9 ° 48 ʹ 52 ” S; 58 ° 15 ʹ 42 ” W, FIT, 21. x. 2012, F. Z. Vaz-de-Mello (1 ♀ CEMT 00192376); CotriguaÇu, Faz. São Nicolau, Matinha, FIT, x. 2009, F. Z. Vaz-de-Mello (1 CERPE 0000015). ECUADOR (01): Orellana: T. B. S. 200 m. s. n. m. [metros sobre el nivel del mar = meter above sea level] 27 − 09 / 10 / 2000, Colección Manual, Colt: Vladimir. Carvajal (1 MEPN 36210). FRENCH GUIANA (02): [Cayenne]: [Wayabo] Piste des Singes Rouge, x. 2000, Y. Ponchel (1 ♀ CMNC); [Wayabo] Piste des Singes, 12. iv. 2009, Y. Ponchel (1 ♀ CMNC); same but, Env. Cacao, Le Château, xi. 2008, P. Bonin leg. (1 CERPE).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66BFFE31F17FF1C19E3444D.taxon	description	(Figures 5, 6)	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66BFFE31F17FF1C19E3444D.taxon	description	Moser 1910, p. 366 (original description). – Schenkling 1921, p. 377 (catalogue). – Blackwelder 1944, p. 265 (catalogue). – Krikken 1981, p. 407 (taxonomic revision). – Krajčik 1999, p. 42 (catalogue). – Di Iorio 2013 (catalogue, appendix). – Schoolmeesters 2024 (catalogue).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66BFFE31F17FF1C19E3444D.taxon	diagnosis	Diagnosis Cyclidinus peruanus is recognised by the following combination of characters: Body covered with black velutinous coating, with the pronotal margin outlined by golden macules, some of which are also present on the head and elytra (Figures 5 (A, C, E – F )); clypeal projection bent upwards, wide and slightly sinuous in frontal view; mentum with posterior margin broadly ‘ V’ - shaped (Figure 5 (B )) and not thickened.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66BFFE31F17FF1C19E3444D.taxon	description	Redescription Size: length: 13.5 – 12 mm; width: 7.2 – 6.5 mm. Colour: Body covered with a black velutinous surface, pronotal margin outlined by golden macules, with some golden macules also on the head and elytra (Figure 5 (A )); ventrally black, with some golden velutinous macules on the thorax, legs, and abdomen (Figure 5 (B )). Head: Clypeal projection bent upwards, wide and slightly sinuous in frontal view; clypeolateral declivity weakly sloping down; scape with a line of setae along the posterior margin. Mentum with posterior margin broadly ‘ V’ - shaped (Figure 5 (B )) and not thickened. Pronotum: Edge bordered by golden velutinous coating; shallow longitudinal groove present in the middle, forming a line of ocellate-punctuations (Figure 5 (C )). Elytra: With some golden spots on the disc and two distinct arrow-shaped velutinous macules (Figures 5 (A, E – F )). Pygidium: Without two parallel protuberances at the centre. Morphological variation Golden spots variable on surface. Geographical distribution Cyclidinus peruanus is known from Amazon Forest of central Peru, in the Rondonia biogeographical province, in a transition region with Yungas biogeographical province (Figure 6).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66BFFE31F17FF1C19E3444D.taxon	discussion	Remarks The new combination proposed here is mainly based on the shape of the pronotum, as well as the overall shape, which is less flattened than that of Genuchinus and has a more velutinous covering. Additionally, the shape of the protibia and mentum is more similar to that of Cyclidinus. These diagnostic characters support the proposed combination.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A66BFFE31F17FF1C19E3444D.taxon	materials_examined	Type specimens examined (n = 1) Lectotype. (designated by Krikken 1981): (Figure 5) Labels [1: printed text on white label] ‘ Peru, Rio Oxabamba, La Merced Chanchamayo’ / [2: handwritten text in black on cream label] ‘ peruanus Type Mos’. / [3: printed text on yellow label] ‘ Zool. Mus. Berlin’ / [4: printed text on red label] ‘ Typus ’ / [5: handwritten text in blue on white label] ‘ Photo [?] jl 79 ’ / [6: printed text on red label] ‘ SYNTYPUS Genuchinus peruanus Moser 1910 labelled by MNHUB 2013 ’. (1 ♀ at MFNB). Non-type specimens examined (n = 1) PERU (01): JUN, II. 2006 D Ribeira rec / 30 km Satipo Rio Verde 1100 – 1200 m / CERPE 0000006 (1 ♀ CERPE).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A669FFFF1FA6FB731CFB4717.taxon	description	(Figures 1 (E), 7 – 20, 32 (A – H ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A669FFFF1FA6FB731CFB4717.taxon	type_taxon	Type species Cetonia elongata Olivier, 1789, by subsequent designation here. Taxonomic history	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A669FFFF1FA6FB731CFB4717.taxon	diagnosis	Diagnosis Cyclidius is recognised by the following combination of characters: Clypeal projection bent upwards in frontal view, not evenly arched (Figures 7 (C) – 18 (C), 32 (G )); frons with two posterior tubercles (Figure 32 (G )); pronotum suborbicular (Figures 1 (E), 7 (A) – 18 (A )), with a lateral border margin; and profemur with a central emargination (Figure 14 (D )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A669FFFF1FA6FB731CFB4717.taxon	description	Redescription Size: length: 27.2 – 19 mm; width: 13.4 – 9.1 mm. Body: Elongate, dorsally flattened. Colour: Body dorsally black or black with orange-red in the mediodiscal region of the elytra; ventrally black or dark reddish brown; palps and antennomeres black or brownish. Eyes black, brown, or yellow, with black spots if not completely black. Hindwing black with dark-blue or purple reflection. Head: Clypeal projection bent upwards in frontal view, not evenly arched (Figures 7 (C) – 18 (C), 32 (G )); frons rugose, with a central protuberance and two posterior tubercles (Figure 32 (G )), non-rugose at the posterior edge of the tubercles. Antegenal protusion evident, eye-canthus rugose superficially; scape semi-triangular. Mentum almost right angle shaped, with the posterior margin broadly ‘ V’ - shaped and thickened, rounded anteriorly and slightly convex, largely covering the mouthparts (Figures 7 (C) – 18 (C )). Pronotum: Disc suborcular, convex; surface irregularly velutinous in places (Figures 1 (E), 7 (A) – 18 (A )); margin with a lateral border. Scutellum: Triangular, with rugose and / or differentially punctate areas on the surface. Elytra: Elongate and evenly rounded, with one anteapical umbone on each elytron; often with punctures centrally; crumpled impression below the scutellum; surface with a combination of glossy and opaque areas, entirely velutinous in some parts, often velutinous on the sides of the elytra but not along the border. Thoracic venter: Hypomerum: Shallowly concave below the procoxa; surface rugose or convergently striate. Prosternum: Narrow anteriorly, forming a pointed projection, setose at the anterior base. Mesoventrite: Rugose or punctate. Mesepisternum: Rugose and / or punctate anteriorly. Mesepimeron: Rugose, barely visible dorsally. Metaventrite: Slightly punctate centrally, rugose along the posterior margin, being often ‘ c’ - punctate and opaque or velutinous laterally. Metepisternum: Often ‘ c’ - punctate, opaque or velutinous. Metepimeron: ‘ c’ - punctate, rugose, opaque, or velutinous. Legs: Tarsus with tarsomere V equal in size to the combined length of two tarsomeres; protarsomeres shorter than meso- and metatarsomeres. Protibia: Ventral surface rugose, differently punctate or striate dorsally, enlarged centrally, may have a medial-proximal tooth; one apical spur and three teeth: apical-lateral, ventro-apical, and lateral-proximal (Figures 7 (D) – 18 (D )). Profemur: Rugose ventrally and differently punctate and / or rugose dorsally, with a central emargination. Mesotibia shorter than metatibia, both dorsally flattened and rugose, ventrally differently punctate, with two pairs of apical teeth and one proximal, showing a concavity superficially opaque and rugose between proximal tooth and apical pairs; two spurs apically. Metafemur wider than mesofemur, both ‘ c’ - punctate and differently punctate. Procoxa and mesocoxa rugose and / or punctate, occasionally with setae, same for the trochanter. Metacoxa: rugose or ‘ c’ - punctate, glossy or opaque or, velutinous. Abdomen: Ventrites often ‘ c’ - punctate, glossy and opaque or velutinous laterally; variation in elevation around the spiracle of the last tergite, always visible. Pygidium: Convex, ocellate-punctate, completely or incompletely velutinous. Aedeagus: Parameres curving dorsally, each apex rounded, with a callus proximally, just before the central membranous portion (Figures 7 (G, H), 9 (G, H), 13 (G, H) – 14 (G, H), 17 (G, H )). Sexual dimorphism The fifth ventrite is reduced in males compared to females, giving the abdomen a concave appearance (Figures 7 (F), 9 (F) – 10 (F), 13 (F) – 14 (F), 17 (F )), which is not observed in females (Figures 8 (F), 11 (F) – 12 (F), 15 (F) – 16 (F), 18 (F )). Morphological variation The body surface can be entirely velutinous dorsally, sometimes covering the punctures. The frons may have a raised longitudinal rigde in the centre, which can connect to the front part of the clypeus in some specimens. The size and shape of posterior tubercles on the frons can vary. The margin along the border of the pronotum is not always complete. The elytral disc can be entirely velutinous or opaque, with a glossy centre and velutinous or opaque border. Some specimens may show a slight lateral-proximal tip, but it does not form a second tooth. Geographical distribution Cyclidius is known from Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, and Venezuela (Figures 19 – 20). Key to the species of Cyclidius MacLeay	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A674FFF91F79FEFE1B9D44A1.taxon	description	(Figures 7 – 8, 20)	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A674FFF91F79FEFE1B9D44A1.taxon	diagnosis	Diagnosis Cyclidius atlanticus sp. n. is recognised by the following combination of characters: Clypeus trapezoidal, raised anteriorly, with a slight sinuosity at the top (Figures 7 (C) – 8 (C )), and it lacks a medial-proximal tooth on the protibia (Figures 7 (D) – 8 (C )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A674FFF91F79FEFE1B9D44A1.taxon	description	Description Holotype. Male. Size: length: 22.3 mm; width: 11.0 mm. Body: Elongate, dorsally flattened (Figure 7 (A, B, E – F )). Colour: Body dorsally black (Figure 7 (A )); ventrally dark reddish brown (Figure 7 (B )); palps and antennomeres brownish. Head: Frons rugose, with a central protuberance and two posterior tubercles; clypeal projection trapezoidal, bent upwards in frontal view, with slight sinuosity at the top (Figure 7 (C )); scape semitriangular. Mentum almost right angle-shaped, with posterior margin broadly ‘ V’ - shaped (Figure 7 (C )), rounded apically, thickened and anteriorly rounded and slightly convex, concave centrally, largely covering the mouthparts. Pronotum: Suborbicular, with a velutinous surface (Figure 7 (A )), inconspicuously punctate; lateral margin with border; longitudinal punctate line extending from the basomedian region to just before centre. Scutellum: Triangular, completly rugose. Elytra: Velutinous coating, inconspicuously ‘ c’ - punctate on the central disc and near elytral suture; lateral border immarginated. Thoracic venter: Hypomerum: Shallowly concave below the procoxa; surface rugose or convergently striate. Prosternum: Narrow anteriorly, forming a pointed projection, setose at the anterior base. Mesoventrite: rugose and confluently punctate. Mesepisternum: Rugose and punctate anteriorly. Mesepimeron: rugose. Metaventrite: punctate centrally, rugose near posterior margin, ‘ c’ - punctate and opaque laterally. Legs: Tarsomeres punctate, with the tarsomere V longer than others; tarsal claw as long as most tarsomeres. Protibia: Rugose, enlarged centrally, thin and concave posteriorly; three teeth on outer margin present, apical-lateral, ventro-apical and lateral-proximal (Figure 7 (D )); spur as long as protarsomeres I – III. Profemur: Rugose ventrally and differently punctate dorsally, with a central emargination. Mesotibia and metatibia dorsally flattened and rugose, ventrally differently punctate, with two pairs of apical teeth and one proximal, wih a superficially opaque and rugose concavity between the proximal tooth and one of the apical pairs; two spurs as long as meso-metatarsomeres I – II. Mesofemur and metafemur differently punctate. Procoxa and mesocoxa punctate, with setae on the procoxa. Metacoxa: Opaque and rugose. Abdomen: Ventrites ‘ c’ - punctate and opaque laterally; slight elevation around the spiracle of the last tergite, which is always visible. Pygidium: Convex, ocellate-punctate, opaque above and bright below. Aedeagus: Parameres curving dorsally, each apex rounded, with callus proximally, before the central membranous portion (Figure 7 (G, H )). Sexual dimorphism Female size: length: 20.6 – 19.7 mm; width: 10.7 – 9.7 mm. There is no concavity in the female protibia (Figure 8 (D )); male protibia larger than female. In males, pronotum is horizontally larger than in females. Geographical distribution Cyclidius atlanticus sp. n. is known only from the coast of Brazil, in the Atlantic Forest biogeographical province (Figure 20).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A674FFF91F79FEFE1B9D44A1.taxon	etymology	Etymology The specific epithet ‘ atlanticus ’ refers to the Atlantic Forest that covers the east coast of Brazil and where the new species is probably distributed, represented so far by only three known specimens.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A674FFF91F79FEFE1B9D44A1.taxon	materials_examined	Type specimens examined (n = 3) Holotype. (Figure 7) Labels: [BRAZIL] [1: printed text on white label] ‘ Santa Maria Madalena, RJ, Faz. Babilônia, 19 / III / 2002, E. Mantoanelli col’ / [2: printed and handwritten text on red label] ‘ HOLOTYPE Cyclidius atlanticus sp. n. ♂ Rodrigues, Grossi & F. Z. Vaz-de- Mello’ (1 ♂ at CEMT 00192377). Paratypes (2): Labels: [1: printed text on white label] ‘ CORUPA S. Catarina BRASIL XII- 1952 A. MALLER’ / [2: printed and handwritten text on yellow label] ‘ Cyclidius atlanticus sp. n. ♀ Rodrigues, Grossi & Vaz-de-Mello 2023 PARATYPE ’ (1 ♀ CEMT 00192378); [1: printed and handwritten text on white label] BRAZIL ESPIRITO SANTO FAZ. JERUSALEM 29. VI. 1912, J. F. Zikan ” / [2: printed text on white label] ‘ ColeÇão F. Zikan’ / [3: handwritten text on white label] ‘ Cyclidius elongatus Latr. ’ / [4: printed and handwritten text on yellow label] ‘ Cyclidius atlanticus sp. n. ♀ Rodrigues, Grossi & Vaz-de-Mello 2023 PARATYPE ’ (1 ♀ CEMT 00192379).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A673FFFB1FD5FF5E1AA643A0.taxon	description	(Figures 9 – 12, 19, 32 (A, D, G ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A673FFFB1FD5FF5E1AA643A0.taxon	description	Olivier 1789, p. 24 (original description). – Latreille 1829: 572 (systematics). – Perty (1830 - 1834 - 1834): 9 (taxonomic revision). – Gory and Percheron 1833: 111 (taxonomic revision). – MacLeay 1838: 17 – 18 (new combination). – Burmeister and Schaum 1841: 260 (taxonomic revision). – Schaum 1841: 260 (taxonomic revision). – Blanchard 1850: 42 (catalogue). – Lacordaire 1856: 553 (redescription). – Westwood 1874: 54 – 55 (taxonomic revision). – Ohaus 1909: 73 (natural history). – Schenkling 1921: 378 (Catalogue). – Blackwelder 1944: 265 (catalogue). – Howden 1971 (key to the genera of Cremastocheilini). – Martínez 1992: 44 (distribution). – Krajčik 1999: 42 (catalogue). – Suárez-G. and Amat-García 2007 (catalogue). – Mynhardt and Wenzel 2010: 134 (phylogeny). – Carvajal et al. 2011: 297 (catalogue). – Di Iorio 2013: 62 (distribution and references). – Drechsel 2014: 61 – 63 (distribution). – Alves-Oliveira et al. 2016 (natural history). – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A673FFFB1FD5FF5E1AA643A0.taxon	diagnosis	Diagnosis Cyclidius elongatus is recognised by the following combination of characters: Clypeus bidentate anteriorly in females, with a concavity between the tips (Figures 11 (C) – 12 (C )); males bears a trapezoidal clypeus raised anteriorly, with no tips (Figures 9 (C) – 10 (C )); and the protibia has a medial-proximal tooth (Figures 9 (D) – 10 (D )), which is absent in females (Figures 11 (D) – 12 (D )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A673FFFB1FD5FF5E1AA643A0.taxon	description	Redescription Male. Size: length: 24.2 – 24 mm; width: 12 – 11.6 mm. Colour: Body dorsally black, elytra opaque black with glossy black (Figure 9 (A, E )) or glossy reddish orange in the centre (Figure 10 (A, E )). Head: Clypeal projection trapezoidal and bent upwards in frontal view, with slight sinuosity (Figure 9 (C) – 10 (C )); frons with a longitudinal elevation in the centre, connecting the front part of the clypeus; velutinous behind the two tubercles posteriorly; mentum shallowly concave centrally. Pronotum: Velutinous surface, lateral margin with incomplete border. Elytra: Velutinous surface on lateral parts of the elytral disc and glossy punctate centrally. Thoracic venter: Metaventrite: ‘ C’ - punctate opaque or velutinous laterally. Metepisternum: ‘ C’ - punctate, opaque or velutinous. Legs: Protibia: Enlarged centrally, with medial-proximal tooth (Figures 9 (D) – 10 (D )). Abdomem: Ventrites ‘ c’ - punctate. Aedeagus: Parameres curving dorsad, each apex rounded, with callus proximally, before central membranous portion (Figure 9 (G, H )). Sexual dimorphism Female size: length: 25.3 – 22.4 mm; width: 12.5 – 11.1 mm. Female with clypeal projection bent upwards in frontal view, bidentate, with a concavity between the tips (Figures 11 (C) – 12 (C )); protibia without medial-proximal tooth (Figures 11 (D) – 12 (D )). Morphological variation The elytral centre can be glossy black (Figures 9 (A, E), 11 (A, E )) or reddish orange (Figures 10 (A, E), 12 (A, E )). There is a single female from Óbidos (Pará, Brazil) without the two posterior tubercles present on the frons. Geographical distribution Cyclidius elongatus is known from Brazil, French Guiana, Guyana, and Suriname in the north-east of the Amazon Forest in the biogeographical provinces of Guiana Lowlands, Roraima, and Xingu-Tapajós, with a doubtful record from Ecuador (Figure 19).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A673FFFB1FD5FF5E1AA643A0.taxon	discussion	Remarks The label data of one of the specimens, placing Cyclidus elongatus in Ecuador, is questionable due to its divergence from other known localities. This species does not have the broad distribution seen in Cyclidius lacordairei. Westwood (1874) mentions Cyclidius plagiatus Dejean 1837 (nomen nudum) as a synonym of Cyclidius elongatus.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A673FFFB1FD5FF5E1AA643A0.taxon	materials_examined	Type specimens examined (n = 1) Lectotype (here designated): (Figures 32 (A, D )) Labels [1: handwritten and printed on red label with black margin] ‘ LECTOTYPE Cetonia elongata Ol. ♀ des. F. Z. Vaz-de-Mello, 2014 ’ (1 ♀ at MNHN). Non-type specimens examined (n = 15) BRAZIL (5): Pará: Maloca Tiryó, Rio [River] Parú de Oeste, i – iii. 1961 (1 ♀ MPEG); Óbidos, 1956, F. M. Oliveira (1 ♂ DZUP); Óbidos, vi. 1956, F. M. Oliveira (1 ♀ MZSP); Óbidos, vii. 1956, F. M. Oliveira (1 ♀ CMNC); Óbidos, iv. 1959, F. M. Oliveira (1 ♀ MZSP); Óbidos, Rio Amazonas, 7. ix. 1965 (1 ♂ DZUP); GUYANA (4): Demerar, Coll Cutt / Collection Candeze (2 ♀ IRSNB); New River. 750 ft. 25. i. – 20. iii. 1938. C. A. Hudson / Brit. Mus. 1939 – 370 (1 ♂ BMNH). Schomburgk leg. (1 ♀ MFNB). ECUADOR [doubtful data] (1): ex coll Bonneuil (1 ♀ IRSNB). FRENCH GUIANA (2): [Cayenne]: [Wayabo], Piste des Singes Y. Ponchel (1 ♂ CMNC); [Wayabo] Piste des Singes Rouge, Y. Ponchel (1 ♂ CMNC). SURINAM (1): Just V. leg. (1 ♀ IRSNB). NO DATA (01): (1 ♂ KPC 327).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A671FFF21FC4FAD91B1A40E8.taxon	description	(Figures 13 – 16, 19, 32 (B, C, E, F ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A671FFF21FC4FAD91B1A40E8.taxon	description	Thomson 1860, p. 37 – 38 (original description). – Westwood 1874: 54 (taxonomic revision). – Kolbe 1893: 211 (descriptions). – Schenkling 1921: 378 (catalogue). – Blackwelder 1944: 265 (catalogue). – Krajčik 1999: 42 (catalogue). – Carvajal et al. 2011: 297 (catalogue). – Di Iorio 2013: 82 (distribution and references). – Ratcliffe et al. 2015: 203 (checklist). – Schoolmeesters 2024 (catalogue).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A671FFF21FC4FAD91B1A40E8.taxon	diagnosis	Diagnosis Cyclidius lacordairei is recognised by the following combination of characters: Protibia with a medial-proximal tooth (Figures 13 (C) – 16 (C )); in female, the clypeus is narrow and bidentate, raised anteriorly (Figures 15 (C) – 16 (C )); in males, the clypeus is elongated, forming a bilobed horn raised anteriorly (Figures 13 (C) – 14 (C )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A671FFF21FC4FAD91B1A40E8.taxon	description	Redescription Male. Size: length: 27.2 – 24.3 mm; width: 12.6 – 11.8 mm. Colour: Body dorsally black (Figure 13 (A )) or with part of elytra reddish orange centrally; or also greenish grey with part of the elytra reddish orange centrally (Figure 14 (A )). Head: Clypeus projection bent upwards in frontal view, apically bilobed (Figures 13 (C) – 14 (C )). Mentum shallowly concave centrally. Pronotum: Longitudinally wide, velutinous or not; margin on lateral border incomplete; occasionally with an inconspicuously longitudinal punctate line, from the basomedian region to before middle of the centre. Elytra: Velutinous laterally on elytral disc and glossy punctate centrally and on the border. Legs: Protibia: Enlarged centrally, with medial-proximal tooth (Figures 13 (D) – 14 (D )). Profemur: With central emargination between two rounded projections (Figure 14 (D )). Aedeagus: Parameres curving dorsally, each apex rounded, with a callus proximally, before the central membranous portion (Figures 13 (G, H), 14 (G, H )). Sexual dimorphism Female size: length: 26.4 – 20.6 mm; width: 13.4 – 11.1 mm. Female with narrow and bidentate clypeus anteriorly, tips of different shapes (Figures 15 (C) – 16 (C )); males pronotum is wider than in females. Morphological variation There are some females with asymmetry at the tips of the clypeal projections. The width and length of the clypeal projection may vary. The frons has a longitudinal elevation in the centre, which can connect to the front part of the clypeus in some specimens; the elevation of the two tubercles on the frons posteriorly differs, and they can be velutinous posteriorly. The mentum is straight, not concave centrally, in a few females. Margin of the lateral border of pronotum is complete in some females. In some specimens, it is possible to observe the brown colouration in the glossy region at the centre of the elytra. The thoracic venter can be entirely velutinous. The regions that turn greenish grey are velutinous. The medial-proximal teeth of the protibia may vary in size in some specimens. A crumpled impression on the ventrites laterally can be observed in some specimens from Equador. Geographical distribution Cyclidius lacordairei is known from Brazil, Colombia, Ecuador, French Guiana, Peru, and Venezuela, corresponding to the biogeographical provinces of Cauca, Cerrado, Guiana, Guiana Lowlands, Imeri, Madeira, Magdalena, Napo, Pará, Páramo, Paraná Forest, Rondônia, Roraima, Sabana, Western Ecuador, Xingu-Tapajós, and Yungas (Figure 19). Natural history Found on top of a plant on the bank of the Igarapé in Novo Airão (Amazonas, Brazil) and inside of Azteca cf. chartifex Forel, 1896 (Hymenoptera, Formicidae) nest (Alves-Oliveira et al. 2016).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A671FFF21FC4FAD91B1A40E8.taxon	discussion	Remarks The species name Cyclidius ochrosidius is unavailable. Cited in the book Escarabajos del Ecuador (Carvajal et al. 2011, p. 297), it was likely confused by Carvajal et al. (2011) with Cyclidius acherontius, described by Kolbe (1893) (synonymised here with Cyclidius lacordairei). Another issue was noted in Alves-Oliveira et al. (2016), where a photo of a female of Cyclidius lacordaire was mistakenly labelled as a male of Cyclidius elongatus. Some specimens of C. lacordairei jave been reported for the west side of the Andes, which would normally be biogeographically unfeasible. However, this distribution is not impossible, as similar patterns are observed in other Scarabaeoidea taxa. One of the specimens from Venezuela, collected from the Acuro River (at IRSNB), has an anterior leg glued in place of the middle leg, which may belong to another specimen with the same label that does not have one of the anterior legs. Although C. lacordairei exhibits significant variation in some characteristics (such as colour), there is no clear correspondence with distribution patterns, making it unlikely to separate them from other species. However, at the extreme ends of its distribution, a few males display subtle changes in the clypeal horn. Given the limited number of specimens, it is difficult to determine whether these represent different taxa.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A671FFF21FC4FAD91B1A40E8.taxon	materials_examined	Type specimens examined (n = 5) Type of Cyclidius lacordairei figure (holotype missing, figure from Lacordaire 1856, pl. 39, fig. 3): (Figures 32 (B, E )) Labels ‘ [PERU] Peruvio. ♂ Long. 33 mill.; lat. 14 mill’ (data from Thomson 1860, p. 37) / ‘ Cyclidius lacordairei Thomson, 1860 ’ (♂?). Lectotype of Cyclidius acherontius (no. 1) (here designated): (Figure 32 (C, F )) Labels [ECUADOR] [1: printed text on blue label] ‘ Columbien, Esmeralda, Honrath V’. / [2: handwritten text in black on a cream label] ‘ Cyclidius acherontius Kolbe’ / [3: printed text on cream label] ‘ 64,951 ’ / [4: printed on yellow label] ‘ Zool. Mus. Berlin’ / [5: handwritten text in blue on a cream label] “ Photo [?] jl 79 / [6: printed on red label] ‘ Typus’ / [7: printed text on red label] ‘ SYNTYPUS Cyclidius acherontius Kolbe, 1893 labelled by MNHUB 2013 ’ / [8: printed and handwritten text on red label] ‘ LECTOTYPE Cyclidius acherontius Kolbe, 1893 Rodrigues, Grossi & des. F. Z. Vaz-de-Mello, 2023 ’ / [9: handwritten and printed text on white label] ‘ Cyclidius lacordairei ♂ Det. D. F. Rodrigues, 2023 ’ (1 ♂ deposited at MFNB). Paralectotypes of Cyclidius acherontius (no. 4): [1: printed text on blue label] ‘ Columbien, Esmeralda, Honrath V’. / [2: printed text on red label] ‘ Typus’ / [3: handwritten text in black on a cream label] ‘ habt [??] Ohaus in Termitengängen’ / [4: printed text on yellow label] ‘ Zool. Mus. Berlin’ / [5: printed text on red label] ‘ SYNTYPUS Cyclidius acherontius Kolbe 1893 labelled by MNHUB 2013 ’ (1 ♀ MFNB); [1: printed text on blue label] ‘ Columbien, Esmeralda, Honrath V’. / [2: printed text on yellow label] ‘ Zool. Mus. Berlin’ / [3: printed text on red label] ‘ Typus’ / [4: printed text on red label] ‘ SYNTYPUS Cyclidius acherontius Kolbe 1893 labelled by MNHUB 2013 ’ (3 ♀ MFNB). Non-type specimens examined (n = 145) BRAZIL (43): ColeÇão didatica [Didactic collection] da UFRA-ICA (1 ♀ CERPE); Jesus [?] (1 ♀ MFNB); Acre: Rio Branco, 05. iv. 1996, P. A. C. Brito (1 ♀ CEMT 00192387). Amazonas: Rio Yaro und Rio Purus (2 ♀ MFNB); Rio Yaro und Rio Purus, Moeckel, Duhaut (1 ♀ MFNB); Benjamin Constant, ix. 1941, Parko (1 ♀ CEMT 00192397); Benjamin Constant, ix. 1955, J. C. Lima (1 ♀ CEMT 00192398); Benjamin Constant, rio Javerny alto Amazonas, ii. 1962, Dirings (1 ♀ MZSP); Benjamin Constant, Rio Javari, i. 1942, A. Parko (1 ♀ CMNC); Benjamin Constant, Rio Javari, x. 1942, A. Parko (1 ♀ DZUP, 2 ♀ CMNC); Benjamin Constant, Rio Javari, Dirings (1 ♀ MZSP); Benjamin Constant, Rio Javari, viii. 1960, Dirings (1 ♀ MZSP); Benjamin Constant, Rio Javari, iv. 1964, Dirings (1 ♀ MZSP); Benjamin Constant, Rio Javari, x. 1969, Dirings (1 ♀ MZSP); Benjamin Constant, rio Amazonas Quichito, vi. 1942, A. Parko (1 ♀ DZUP) Coari, rio Oruco, Angelim, 5 ° 3 ʹ 33 ” S, 65 ° 14 ʹ 48 ” W, 23. xi – 02. xii. 1992, M. Gordo (1 ♀ CEMT 00192399); Manaus, BR 174 Km 16, Comunidade Paraíso Verde, 06. xi. 2005, A. W. M. Gomes (1 ♀ CEMT 00192385); Manaus, campus UFAM, Mini, Bloco ‘ E’, corredor, 25. xii. 2005, A. W. M. Gomes, col (1 ♀ CZPB); Manaus, campus Univ. Amaz. 28. ii. 1990, N. O. Aguiar (1 ♀ CEMT 00192384); Manaus, campus universitário FUA, 16. xi. 1990, N. O. Aguiar (1 ♀ CEMT 00192386); Manaus, INPA Biotério, 25. ii. 1980, U. B. Carvalho (1 ♂ INPA); Manaus, Reserva Adolpho Ducke, 26. x. 2005, A. Agudelo (1 ♀ INPA); Manicoré (2 ♀ IRSNB); Novo Airão, ramal do Olímpio, Refúgio Arambóia, 2 ° 39 ʹ 23 ” S, 60 ° 55 ʹ 44 ” W, 08. xi. 2003, N. O. Aguiar (1 ♂ CEMT 00192392); Novo Aripuanã, 05 ° 15 ʹ S, 60 ° 09 ” W, 24 – 29. viii. 2003, F. F. Xavier F ° and L. S. Aquino (1 ♀ INPA); Presidente Figueiredo, Estrada [Road] de Balbina km 12, Igarapé Santuário, 02 ° 03 ʹ 36 ” S, 59 ° 55 ʹ 35 ” W, 19 – 30. ix. 2003, F. F. Xavier F ° and J. M. Vidal (1 ♀ INPA); São Paulo de OlivenÇa (1 ♀ MFNB); Tabatinga, viii. 1978, B. Silva (1 ♂ CEMT 00192381); Tonantins, 7. ii. 2002 (1 ♀ KPC 157); Tonantins, 13. ii. 2022 (1 ♀ KPC 158). Mato Grosso: Carlinda, Agropecuária Verde Paraíso, 21. xi. 2010; M. M. E. Sousa (1 ♀ CEMT 00192382); Nova Mutum, Fazenda [Farm] Santo Antonio, 26. ii. 2014, A. A. C. Junior (1 ♀ CERPE); Rosário Oeste, xii. 1972, Coll A. Muller (1 ♂ CEMT 00192380); Sinop, xii. 1972, Col. Moacir Alvarenga (1 ♀ CLGC). Pará: A. Ducke (1 ♀ IRSNB); Altamira, 26. v. 2018, J. S. Silva (1 ♂ CERPE); Belém, ii. 1968, A. Bello (1 ♀ CEMT 00192383); Itaituba, Santaremsinho, Rio Tapajóz, i. 1962, Dirings (1 ♂ MZSP). Paraná: Londrina, campus UEL, 10. xi. 2004, J. Lopes (1 ♂ CEMT 00192391). Rondônia: Porto Velho, 26. ii. 1979, J. Campbell (1 ♀ INPA). COLOMBIA (24): no data (4 ♀ 1 ♂ IRSNB; 1 ♀ MFNB). Amazonas: Leticia, 14 – 29. V. 2020 (1 ♀ KPC 0156); PNN. Amacayacu, 100 m, malaise, ii. 1998, Álvarez, M. (1 ♀ IAvH-E- 071528). Caqueta: 31. iv. 2003, Insectplanet leg (1 ♀ CERPE); Cauca: S. Assis [?] (1 ♀ MFNB). [Condimarca]: Bogotá, 89 – 82 (2 ♀ CMNC); Cordillere de Bogotá (2 ♀ IRSNB); Santa fé de Bogotá (2 ♀ MFNB); Meta: Cubarral, F. La Rosania, BhT, 3 ° 49 ʹ 47.90 ” N, 73 ° 59 ʹ 1.25 ” W, 628 m, manual, iv. 2018, Lopera, A. and Chamorro W. (1 ♂ IAvH-E- 203749); Cubarral, F. La Rosania, BhT, 3 ° 49 ʹ 47.90 ” N, 73 ° 59 ʹ 1.25 ” W, 628 m, manual, A. iv. 2018, Lopera, A. and Chamorro, W. (1 ♀ IAvH- E- 203750); PNN. Tinigua, Río Duda, CIEM, 2 ° 40 ʹ N, 74 ° 10 ʹ W, 350 m v. 1994, Álvarez, M. (2 ♂ IAvH-E- 071526 - 071527). Puntumayo: Mocoa, Pasto estrella, 2002 – 05 - 21, Realpe N. (1 ♀ CEUN 6104); Mocoa, Jd. Bot. [botanical garden] tropical amazónico, 01 ° 09 ʹ 23.6 ” N, 76 ° 39 ʹ 08.4 ” W, 642 m, manual, x. 2006, Revelo, R. (1 ♀ IAvH-E- 203751); Orito, RN. Isla Escondida, Bosque húmedo [wet woods], 00 ° 39 ʹ 17.9 ” N, 77 ° 04 ʹ 24.4 ” W, 813 m, manual, 12 – 13. iii. 2023, Neita, J. C. (1 ♀ IAvH-E- 203751); Villagarzón, Vereda Canangucho, 01 ° 01 ʹ 46 ” N, 76 ° 36 ʹ 59 ” W, Captura jama, 2018 – 10 - 27, Artega, M., Aguirre, D. (1 ♀ CEUN 15875). ECUADOR (49): no data (2 ♀ MFNB, 1 ♀ MEPN, 1 ♀ INABIO 8232); Onkone-care [?] Yasuni. 257 m manual. A. troya 10 October 2005 (1 ♀ MEPN 36209); Columbien, Esmeralda (1 ♀ MFNB); E. Deville (2 ♀ IRSNB); V. Fritshe (1 ♀ 1 ♂ MFNB); Llanos (1 ♀ MFNB); Mts Baltazar (1 ♀ MFNB); M. Moreno (1 ♀ CEMT 00192393). Los Ríos: Río Palenque Donación: Calaway Dodson (1 ♀ MECN). [Morona-Santiago]: Macas (6 ♀ MFNB); Macas, E. Feyer S. (5 ♀ MFNB); Macas, Forster (1 ♀ CMNC). Napo: Archidona, R. Haensch S (1 ♀ MFNB); Coca, v. 1983, G. Onore (1 ♀ CMNC); Puerto Misahualli, 440 msnm, Abr a Jun de 1996, J. Jungbluth ING. 96 – 02 (3 ♀ MECN 8233 – 8235); Tena, iii. 2003, D. Curoe (1 ♀ CEMT 00192396). Orellana: Loreto P. Mena [?], 01. xii. 1949 (1 ♂ CMNC); TBS – Bosq. Primario [primary forest] 27 – 09 - 2000. 250 m Col. V. Carvajal (1 ♀ MEPN 36208); TBS Rio Tiputini, 14 – 26 February 2001 250 m. A. Lucky y V. Carvajal / Bosque Húmedo Tropical (1 ♂ MEPN 36206); Tiputini TBS, 234 m, Lat: − 0.61806; Lon: − 76.17194, Moreno, M. 08 Jun 1998 Ex: Manual (1 ♀ ZSFQ-i 9170). Pastaza: Arajuno, 7. x. 1960 [?] (2 ♀ DZUP); Arajuno, Río Oglán CEPLOA- ECUCE 18 N 0201011 E / 9853796 N 09 – 14 - junio 2005, Vladimir Carvajal (1 ♀ MEPN 36207); [Bosque Protector] B. P. Oglan Alto, 853286 N: 0200713 E, vii. 2007 (1 ♀ CEMT 00192394); [Bosque Protector] B. P. Oglán, 30. x. 2008, Col. F. Gallo and E. Carrillo (1 ♀ CEMT 00192395); Canelos, 11. ii. 1937, Dr. Schultze-Rhonhof S. G. (1 ♂ MFNB); Canelos, 20. xi. 37, Dr. Schultze-Rhonhof S. G. (1 ♀ MFNB); Cononaco, 17.1984, J. Valareio (1 ♀ MECN 8231); Puyo, iii. 1992, P. Bleuzen (2 ♀ IRSNB); Sarayaku, 05. vi. 1937, Dr. Schultze-Rhonhof S. G. (2 ♀ MFNB); Sarayaku, 10. ix. 37, Dr. Schultze-Rhonhof S. G. (1 ♀ MFNB). [FRENCH GUIANA] (01): Cayenne (1 ♀ MFNB). PERU (17): no data (2 ♀ MFNB); Mt. Alegre, Rio Pachitea, ca. 0930 / 7457, G. Tessmann (2 ♀ MFNB). [Chanchamayo]: La Merced Chanchamayo, Rio Oxabamba (1 ♀ MFNB). Loreto: [Maynas] Iquitos, xi. 2010 (3 ♀ CEMT 00192388 – 00192390) [Maynas] Iquitos, x. 2010 (2 ♀ CERPE; 3 ♀ CLGC), [Maynas] Iquitos, X. 2021 (2 ♀ KPC 159 – 160) [Maynas] Punchana, Picuroyacu 100 m, XI. 2023 (1 ♀ KPC 365); [Maynas] Punchana, Picuroyacu 100 m, 26. XI. 2023 (1 ♀ KPC 366); [Maynas] Punchana, Picuroyacu 100 m, 22. XI. 2023 (1 ♀ KPC 367). Madre de Dios: Manu Natl. Pk. Cocha Cashu Biol. Station, 11 ° 55 ʹ Sx 77 ° 18 ʹ W (1 ♀ CMNC). Pachitea: (1 ♀ MFNB). VENEZUELA (09): delta de l’Orenoque (1 ♀ IRSNB); Rio Acuro (3 ♀ IRSNB); Rio Padamo, R. Haensch S (1 ♂ MFNB). Amazonas: Col. Fco. Villa Gavilán, Atures 150 Mts., xi. 2005 EDO. (1 ♀. CERPE); Gavilan, 150 mts Frco. Villa, VI. 2004 (1 ♂ KPC 279); La Esmeralda, G. Schaver? (1 ♀ MFNB); Puerto Ayacucho, Gavilam, xi. 1991, Recol dans nids der lournis [?] arboricoles genre: Azteca, P. Bleuzen (1 ♂ IRSNB). NO DATA (02): (1 ♀ CEMT 00192400; 1 ♀ INPA).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A646FFCE1FB6FB0819914360.taxon	description	(Figures 17, 18, 20)	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A646FFCE1FB6FB0819914360.taxon	description	Kolbe 1893, p. 212 (original description). – Schenkling 1921: 378 (catalogue). – Blackwelder 1944: 265 (catalogue). – Krajčik 1999: 42 (catalogue). – Di Iorio 2013: 62 – 82 (catalogue, appendix). – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A646FFCE1FB6FB0819914360.taxon	diagnosis	Diagnosis Cyclidius rohdei is recognised by the following combination of characters: Clypeal projection semicircular and bent upwards in frontal view (Figures 17 (C) – 18 (C )), occasionally straight or slightly sinuous at the apex, without tips. The disc of the mentum is straight centrally. In males, the protibia has a medial-proximal tooth (Figure 17 (D )), wich is absent in females (Figure 18 (D )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A646FFCE1FB6FB0819914360.taxon	description	Description Male. Size: length: 23.7 – 19 mm; width: 11.3 – 9.3 mm. Colour: Body dorsally black, with elytra opaque black and glossy black in the centre and border. Head: Clypeal projection semicircular and bent upwards in frontal view (Figure 17 (C )), occasionally straight or slightly sinuous apically; frons slightly elevated centrally; mentum straight centrally. Pronotum: Velutinous coating or glabrous opaque, with a complete lateral border. Elytra: Velutinous coating or glaborus opaque, glossy in parts of the centre and the border frequently, with punctures near the elytral suture. Thoracic venter: Metepisternum: Velutinous coating or glabrous, opaque or glossy, and ‘ c’ - punctate. Legs: Protibia: enlarged centrally with a medial-proximal tooth (Figure 17 (D )). Aedeagus: Parameres curve dorsally, with rounded apices and callus before the central membranous portion (Figure 17 (G, H )). Sexual dimorphism Female size: length 19.5 – 18.1 mm; width: 9.7 – 9.1 mm. Females without medial-proximal tooth in the protibia (Figure 17 (D )). Morphological variation Some specimens may lack the central elevation on the frons. One female has few shallow depressions in the pronotum, being irregular. Some males from Rio Ichilo (Bolivia) are larger and have pronotum wider longitudinally. A specimen from Santa Cruz de La Sierra (Bolivia) has a clypeal projection trapezoidal, instead semicircular. Additionally, a specimen from Ribeirão Preto (Brazil) has a narrower pronotum. Geographical distribution Cyclidius rohdei is known from northern Argentina, Bolivia, Brazil, and Paraguay, comprising biogeographical provinces of Cerrado, Paraná Forest, Rondônia, and Yungas (Figure 20). Natural history Drechsel (2014) reported the behaviour of thanatosis in Cyclidius rohdei (although the specimen was misidentified as Cyclidius elongatus) from Paraguay. The species was associated with a dry branch of undergrowth.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A646FFCE1FB6FB0819914360.taxon	materials_examined	Type specimens examined (n = 1) Holotype: (Figure 18) Labels [1: handwritten in black on a cream label] ‘ Ascurisal Matto Grosso [Brazil, Mato Grosso, Acorizal] ’ / [2: printed on cream label] ‘ Coll. Thieme’ / [3: handwritten in black on a cream label] ‘ Cyclidius rohdei n. sp. Kolb’. / [4: printed on cream label] ‘ 64,025 ’ / [5: printed on yellow label] ‘ Zool. Mus. Berlin’ / [6: handwritten in blue on a white label] ‘ Photo jl [?] 79 ’ / [7: printed on red label with black border] ‘ Typus’ / [8: printed on red label] ‘ HOLOTYPUS Cyclidius rohdei Kolbe, 1893 labelled by MNHUB 2013 ’ / [9: handwritten and printed on white label] ‘ Cyclidius rohdei ♀ Det. D. F. Rodrigues, 2023 ’ (1 ♀ MFNB). Non-type specimens examined (n = 9) ARGENTINA (1): Misiones: Iguazú, Pto Libertad, i. 1958 (1 ♀ CMNC). BOLIVIA (7): Ost Bolivien, Steinbaoh S. V. (1 ♀ MFNB); Santa Cruz: Santa Cruz de la Sierra (1 ♂ MFNB); Santa Cruz, x. 1949 (1 ♂ CMNC); Ichilo, Rio Ichilo, J. Steinbach-leg; (2 ♂ CMNC); Ichilo, Buena Vista, xi. 1987, Col. Robin Clark (1 ♀ CMNC); Buena Vista, Hotel Flora and Fauna, 14 – 20. xi. 2008, Galileo, Vanin and Martins col (1 ♀ MZSP). BRAZIL (1): São Paulo: Ribeirão Preto, campus USP, 21 ° 11 ʹ S, 47 ° 43 ʹ W, 20. vii. 1999, F. Zanella (1 ♂ MZSP). Other locations (n = 1): PARAGUAY (1): Canindeyú, Mbaracayú, 24 ° 08 ʹ S, 55 ° 31 ʹ W, 17. iii. 2013 (1 ♂ Drechsel 2014).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A645FFC81F69FAC91B5F4082.taxon	description	(Figures 1 (G), 21, 22)	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A645FFC81F69FAC91B5F4082.taxon	type_taxon	Type species Genuchinus brasiliensis Moser, 1910, by monotypy.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A645FFC81F69FAC91B5F4082.taxon	diagnosis	Diagnosis Krikkenjanius gen. n. is recognised by the following combination of characters: Clypeal projection is weakly bent upwards and arched (Figure 21 (B )), with a line delimiting the clypeolateral declivity. The pronotum has wide, rounded sides centrally, with a posterolateral emargination, making the posterior portion narrower (Figures 1 (G), 21 (C )). Its surface is irregular, ocellate-punctate, with setae in the centre of the punctures. The punctation is dense ocellate-punctate along the middle and near the margin, where the setae are more visible. Protibia has five teeth: one apical-lateral (enlarged with a lateral sulcus), two reduced apical-ventral (one near the apical spur), and two lateral-proximal (Figure 21 (D )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A645FFC81F69FAC91B5F4082.taxon	description	Description Same as for the species, since it is monospecific.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A645FFC81F69FAC91B5F4082.taxon	etymology	Etymology The name of the genus is a tribute of the memory of Jan Krikken, a great name in studying Cetoniinae around the world, and a special contributor to the knowledge of Neotropical Cremastocheilini, being a masculine noun in the nominative case.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A645FFC81F69FAC91B5F4082.taxon	discussion	Remarks The generic classification of the species Genuchinus brasiliensis has been questioned by both Moser (1910) and by Krikken (1981) due to its unique characteristics. In both works, they even considered establishing a new genus for this species. In our review of the Cremastocheilini of South America, we observed ambiguity in some characters, which could support either retaining Krikkenjanius brasiliensis in Cyclidinus or transferring it to Cyclidiellus. However, due to unique characters observed (see the diagnosis of Krikkenjanius gen. n.) and to avoid unnecessary re-diagnosis of other well-established genera, we propose the description of a new genus here.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A640FFC41F35FF501B154689.taxon	description	(Figures 1 (G), 21, 22)	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A640FFC41F35FF501B154689.taxon	description	Moser 1910, p. 365 (original combination). – Schenkling 1921: 377 (Catalogue). – Blackwelder 1944: 265 (catalogue). – Krikken 1981: 416 (new combination). – Krajčik 1999: 42 (catalogue). – Di Iorio 2013: 62 – 82 (catalogue, appendix). – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue). Description Female. Size: length: 14.7 – 13.3 mm; width: 7.1 – 6.5 mm. Body: Elongate, dorsally flattened, partially velutinous (Figure 21 (A, B, E, F )). Colour: Body dorsally black with mustard-yellow macules (Figure 21 (A )); ventrally black (Figure 21 (B )); mentum, palps, and antennomeres black or dark brown. Eyes brown or yellow, when it is not dark, may have black stains. Head: Clypeal projection weakly bent upwards and arched in frontal view, with a line delimitaing clypeolateral declivity, line heavily sloped down and rounded on tips. Frons rugose anteriorly, ocellate-punctate posteriorly, slightly velutinous; antegenal protusion evident, eye-canthus rugose and often velutinous; scape semitriangular, rugose superficially, occasionally setose on the sides. Mentum with a broadly ‘ V’ - shaped posterior margin, rounded at the other corners (Figure 21 (B )) and setose. Pronotum: Velutinous disc with wide, rounded sides centrally and a posterolateral emargination, narrowing posteriorly (Figures 1 (G), 21 (C )); posterior corners obtuse, anterior corners almost rectangular, posterior margin broadly rounded; surface irregular, ocellate-punctate with setae emanating from the central edge of punctures, setae dense along the middle and near the margin. Scutellum: Triangular, ocellate-punctate with some lines laterally. Elytra: Elongate, with margin slightly transverse anterioly and rounded posteriorly; with one humeral and anteapical umbone in each elytron (Figure 21 (A )); surface heavily oval-ocellate-punctate in six longitudinal rows, often rugose on the margin. Thoracic venter: Hypomerum: Rugose or striate convergently, setose. Prosternum: Narrow anteriorly, with a pointed projection, setose at the anterior base and less dense at the tip. Mesoventrite: Ocellate-punctate, slightly setose. Mesepisternum: Punctate and rugose. Mesepimeron: Ocellate-punctate, rugose, slightly setose, barely visible dorsally. Metaventrite: With distinct median sulcus, strongly ocellate-punctate, smaller near the sulcus, if compared laterally; setae emanating from central edge of punctures. Metepisternum and Metepimeron irregularly ocellate-punctate with setae emanating from the central edge of punctures. Legs: Tarsus: Last tarsomere longer than the others, punctate and setose. Protibia: Punctate, sparsely setose; apical-lateral tooth enlarged centrally, crushed baso-laterally, apically pointed, slightly inclined downwards; one apical spur and five teeth: one apical-lateral, two reduced apical-ventral being one next to the apical spur, and two lateral-proximal (Figure 21 (D )). Profemur: Rugose ventrally, striate dorsally, with setae on the medial side. Metatibia: Slightly curved and longer than dorsally flattened mesotibia, both with striations forming setose cells; two pairs of apical teeth and one proximal in mesotibia, edge between proximal tooth and one of the apical pairs weakly concave, metatibia also bearing concavity but without proximal tooth; two spurs apically. Metafemur: Wider than mesofemur, both with connected striations, forming cells, or ocellate-punctate, in both case with setae emanating from central edge. Procoxa and mesocoxa rugose with setae, same for trochanter. Metacoxa: ocellate-punctate. Abdomen: Ventrites ‘ c’ - punctate or ocellate-punctate with setae, glossy and / or opaque (Figure 21 (B )); ventrite V weakly concave; spiracle of last tergite elevated and always visible. Pygidium: Convex, ocellate-punctate, without two parallel protuberances in the centre. Geographical distribution Krikkenjanius brasiliensis is only known from Brazil, in the Atlantic Forest biogeographical province (Figure 22).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A640FFC41F35FF501B154689.taxon	discussion	Remarks In the original description, the total length is 16 mm.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A640FFC41F35FF501B154689.taxon	materials_examined	Type specimens examined (n = 1) Holotype: (Figure 21) Labels [1 printed text on cream label] Theresopolis Brasil / [2 printed text on cream label] Michaelis / [3 handwritten text on cream label] brasiliensis Type Mos. / [4 printed text on yellow label] Zool. Mus. Berlin / [5 handwritten text on white label] photo jl 79 / [6 printed text on red label] Typus / [7 printed text on red label] HOLOTYPUS Cyclidinus brasiliensis (Moser, 1910) labelled by MNHUB 2013 (1 ♀ MFNB). Non-type specimens examined (n = 1) BRAZIL: Santa Catarina: Corupá, i. 1950, A. Maller (1 ♀ CMNC).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFC41FDCFE9B1884422E.taxon	description	(Figures 1 (I), 23 – 27, 32 (H-L ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFC41FDCFE9B1884422E.taxon	type_taxon	Type species Cremastocheilus axillaris Gory and Percheron 1833 (Figure 17), designated by monotypy. Taxonomic history	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFC41FDCFE9B1884422E.taxon	diagnosis	Diagnosis Paracyclidius is recognised by the following combination of characters: Clypeal projection bent upwards in frontal view, evenly arched (Figures 23 (C) – 26 (C), 32 (H )); frons without posterior tubercles (Figure 32 (H )); pronotum suborbicular (Figures 23 (A) – 26 (A), 1 (I )), lacking a border on the lateral margin; the spiracle of the last tergite is always visible and not elevated.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFC41FDCFE9B1884422E.taxon	description	Redescription Same as for the species, since it is monospecific. Geographical distribution Paracyclidius is known from Brazil, French Guiana, Panama, Peru, and Trinidad and Tobago.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	description	(Figures 1 (I), 23 – 27, 32 (H-L ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	description	Gory and Percheron (1833), p. 112 (original description). – MacLeay 1838: 17 – 18 (new combination). – Burmeister and Schaum 1841: 258 – 260 (taxonomic revision). – Schaum 1841: 258 – 260 (taxonomic revision). – Westwood 1874: 54 (taxonomic revision). – Schenkling 1921: 378 (catalogue). – Blackwelder 1944: 265 (catalogue). – Krikken 1976 (key to the genera of Cremastocheilini). – Krikken 1984: 45 (catalogue of genera). – Krajčik 1999: 42 (catalogue). – Ratcliffe 2002: 39 (checklist). – Di Iorio 2013: 62 – 82 (catalogue, appendix). – – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue). Redescription Size: length: 24.1 – 19.2 mm; width: 12.4 – 9.9 mm. Body: Elongate, dorsally flattened. Colour: Body dorsally with the pronotum and anterior region of the elytra orange-red, and the remaining parts black (Figures 23 (A, E, F), 25 (A, E, F )), or entirely black (Figure 26 (A, E, F )), or entirely orange-red (Figure 24 (A, E, F )). Ventral side is black, dark reddish brown, or orange in the abdomen region. Palps and antennomeres are either black or brownish. Eyes black or yellow, sometimes non-black, occasionally with black stains. Head: Clypeal projection bent upwards in the frontal view, evenly arched (Figures 23 (C) – 26 (C), 32 (H )). Frons rugose or confluently punctate on the surface, may have a central protuberance, without tubercles posteriorly (Figure 32 (H )); antegenal protusion is evident, and the eye-canthus is superficially rugose; scape semitriangular; mentum almost right angle shaped, shallowly concave in the central four-fifths, then rounded and slightly convex to margins; posterior margin is broadly ‘ V’ - shaped, with a rounded apex, neither thickened nor perpendicular; surface of the mentum is finely tuberculate, with fine strigose texture near the margins, covering most of the mouthparts. Pronotum: Disc suborcular and convex (Figures 1 (I), 23 (A) – 26 (A )); surface is irregular sometimes, occasionally velutinous, and, if not, punctuated or inconspicuously punctated; without margin on lateral border. Scutellum: Triangular, velutinous, with flat and / or differentially punctate areas on the surface. Elytra: Disc elongated and evenly rounded, with one anteapical umbone in each elytron; velutinous surface, with punctures arranged in irregular rows, vaguely indicating intervals. The punctures are distinct at the base, with flat, very finely granular bottoms. Thoracic venter: Hypomerum: Shallowly concave below the procoxa; the surface is rugose or striate convergently. Prosternum: Narrow anteriorly, forming pointed projection, setose at the anterior base. Mesoventrite: Rugose or differently punctate. Mesepisternum: Rugose and / or punctate anteriorly. Mesepimeron: Rugose, barely visible dorsally. Metaventrite: Slightly punctate centrally, rugose along the posterior margin, with ‘ c’ - punctate shaped punctures or velutinous texture laterally. Metepisternum: ‘ c’ - punctate or velutinous. Metepimeron: ‘ c’ - punctate, rugose, or velutinous. Legs: The last tarsomere of the tarsus is the same length as the two preceding ones combined; protarsomeres are shorter than latter ones. Protibia: Ventrally flat and differently punctate dorsally, enlarged centrally; a non-pointed projection from which one spur emerges apically, along with three or four teeth: apical-lateral, ventro-apical, and lateral-proximal, occasionally with a minor among the major laterals (Figures 23 (D) – 26 (D )). Profemur: The anterior margin is straight or nearly straight, rugose ventrally, and differently punctate and / or rugose dorsally. Mesotibia shorter than metatibia, both are dorsally flattened and rugose, ventrally differently punctate, with two pairs of apical teeth and one proximal tooth, with a concavity superficially opaque and rugose between the proximal tooth and one of the apical pairs; two spurs apically. Metafemur wider than Mesofemur both ‘ c’ - punctate or differently punctate. Procoxa and Mesocoxa rugose and / or punctate, occasionally with setae, same for trochanter. Metacoxa: Rugose or ‘ c’ - punctate, glossy, opaque, or velutinous. Abdomen: Ventrites are ‘ c’ - punctate, glossy, and opaque or velutinous laterally. The spiracle on last tergite is always visible and not elevated above the surface. Pygidium: Convex, ocellate-punctate, incompletely velutinous or opaque. Sexual dimorphism Female size: length: 20.3 – 19.2 mm; width: 9.9 – 9.8 mm. Males with strong concavity in the abdomen (Figures 23 (F) – 24 (F )), which is absent in females (Figures 25 (F) – 26 (F )). Morphological variation Protibia with two lateral teeth of similar size, or three lateral teeth, and in these cases, the middle tooth is smaller than the others. There is some variation in the pronotum of two specimens, where the lateral margin does not form a border but instead forms a clear delimitation, unlike in the other specimens observed. On the sides of the pronotum in these two specimens, there is a very small concavity in the medial anterior region. The pronotum of one observed male is as wide as the elytra, unlike the others. A protuberance on the forehead is present in some specimens. One specimen exhibits elytral punctures centrally, with a crumpled impression just below the scutellum. The surface shows a combination of glossy and opaque areas. Natural history Paracyclidius axillaris is associated with arboreal ant nests (Howden 1971). Geographical distribution Paracyclidius axillaris is known from Amazon Forest in Brazil, French Guiana, and Peru, also in Panamá (Ratcliffe 2002) and Trinidad and Tobago, in the biogeographical provinces of Rondônia, Roraima, and Trinidad (Figure 27).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	discussion	Remarks Due to the divergence in the diagnostic characters between Cyclidius and Cyclidius axillaris (Gory and Percheron, 1833), this species is transferred to the genus Paracyclidius, with which its characters match. Furthemore, the male genitalia of C. axillaris (Figures 23 (E, F), 24 (E, F )) differs from the common form present in Cyclidius and matches with Paracyclidius bennetti, which, due to all the characteristics analysed and compared, and by the priority principle [Article 23, ICZN [International Commission on Zoological Nomenclature] (1999)] will be synonymised with P. axillaris, Paracyclidius being still a monotypic genus. Both Gory and Percheron (1833) and MacLeay (1838) initially attributed the autorship of this species to Dupont. However, the authorship of C. axillaris was subsequently assigned to Gory and Percheron by later works, for presenting the first description of the species.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	materials_examined	Type specimens examined (n = 2) Holotype of Cremastocheilus axillaris. (Figure 32 (I, K )) Labels [FRENCH GUIANA] [1: handwritten text on cream label] ‘ Cayenne’ / [2: handwritten text on cream label] ‘ Axillaris G. et P’. / [3: printed text on cream label with black margin] ‘ Ex Museo Mniszech’ / [4: printed text on white label] ‘ Paris: MNHN’ / [5: printed text on red label] ‘ Type’ / [6: handwritten text on white label] ‘ Photo [?] 77 ’ / [7: handwritten text on white label] ‘ Photo [?] 79 ’ / [8: handwritten text on white label] ‘ Paracyclidius axillaris G. P. Holotype’ / [9: handwritten text on cream label] ‘ Schaum zeit [?] 1841 p 260 ’ / [10: handwritten text on cream label] ‘ Type Gory Mon Cetoin p 112 Pl 15 Figure 3 ’ (1. ♀ at MNHN). Holotype of Paracyclidius bennetti: (Figures 32 (J, L )) Labels [TRINIDAD AND TOBAGO] [1: handwritten text on white label] ‘ Mayaro, Trinidad, W. I. VI. 1964 ’ / [2: handwritten and printed text on white label] ‘ Arboreal ant nest F. D. Bennett Collector’ / [3: handwritten text on white label] ‘ H. & A. Howden Collection’ / [4: printed and handwritten text on red label] ‘ HOLOTYPE Paracyclidius bennetti H. Howden’ / [5: printed text on white label] ‘ Canadiam Museum of Musée canadien de la NATURE CMNEN 00011948 ’ (1 ♂ at CMNC). Non-type specimens examined (n = 7) BRAZIL (6) Amazonas: Itacoatiara, 15. xi. 2007, DBRibeiro (1 ♀ CEMT 00192402); Manaus, Campus Universitário-FUA, viii. 2000 (1 ♂ CEMT 00192401); Manaus, Comune near Borba, iii. 1931, Le Moult vendit (1 ♂ 2 ♀ IRSNB); Rio Preto da Eva, 28. i. 2017, Wanderson Malheiros Leg (1 ♀ INPA). PERU (1): Junín: 30 km Satipo Rio Verde, 1100 – 1200 m, ii. 2006, D. Ribeira (1 ♀ CERPE).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	description	Genus Quititinus Rodrigues, Grossi and Vaz-de-Mello gen. n. http: // zoobank. org / urn: lsid: zoobank. org: act: F 1 E 4 F 48 C- 4287 - 4 C 7 D- 9189 - 472 F 22023 BBE (Figures 1 (K), 28 – 30, 31 (F-K ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	type_taxon	Type species Genuchinus parvulus Krikken, 1981, here designated.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	diagnosis	Diagnosis Quititinus gen. n. is recognised by the following combination of characters: Small size, very flattened and glossy body (Figures 28 (A, B, E, F), 29 (A, B, E, F )). Mentum circular (Figures 28 (B) – 29 (B )). Pronotum with a concave anterior margin and convex posterior margin; lateral margin rounded, wide anteriorly, wider centrally, and narrow posteriorly, forming a short callus at the angle where it connects to the posterior margin (Figures 1 (K), 28 (C) – 29 (C )). Protibia with one spur apically between two apical teeth, and three more teeth: a larger apical-lateral, a lateral-proximal, and a ventro-apical projecting from a keel (Figures 28 (C) – 29 (C )). Parameres curving, each apex uniform width until thin at the tip, central membranous portion large (Figure 28 (G – F )).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	description	Description Male. Size: length: 7 – 6.5 mm; width: 3.5 – 2.6 mm. Body: Elongate, applanate dorsally, very flattened (Figures 28 (A, B, E, F), 29 (A, B, E, F )). Colour: Body glossy black, glossy dark reddish brown, or glossy brown on both dorsal and ventral surfaces, with some sparse whitish velutinous spots; palps and antennomeres are black or brownish. Eyes are black, brown, or yellow, sometimes non-black with black spots. Hind wing is yellow-amber. Head: Clypeus evenly arched in frontal view, weakly bent upwards; clypeolateral declivity with rounded corners, the lateral transition of the clypeus gradually declivous. Frons almost flat, ocellate-punctate and / or differently punctate, sometimes with whitish velutinous spots. Antegenal protusion is evident, eye-canthus is superficially punctate; scape semitriangular; mentum is circular (Figures 28 (B) – 29 (B )), superficially punctate. Pronotum: Surface very feebly convex; anterior margin concave and posterior convex. Lateral margin rounded, wider anteriorly, wider centrally, and narrow posteriorly, forming a callus at the angular connection to the posterior margin (Figures 1 (K), 28 (C) – 29 (C )). Disc has whitish velutinous spots. Scutellum: Triangular, ocellate-punctate anteriorly with a ‘ V’ - shaped impression; occasionally with a central whitish velutinous spot. Elytra: Disc elongate and evenly rounded, with a short anteapical umbone on each elytron and a shallow posthumeral emargination. Surface glossy with ocellate punctures and whitish velutinous spots on the disc. Thoracic venter: Hypomerum: Shallowly concave below procoxa; surface striate convergently. Prosternum: Narrow anteriorly, forming a pointed projection, setose at the anterior base. Mesoventrite: Ocellate-punctate and / or differently punctate. Mesepisternum: Rugose anteriorly or not. Mesepimeron: Ocellate-punctate and occasionally rugose, barely visible dorsally. Metaventrite: Slightly punctate centrally, ocellate-punctate laterally, ocassionally with whitish velutinous spots. Metepisternum: Ocellate-punctate, with the outermost side thickened and smooth. Metepimeron: Punctate, or with whitish velutinous spots. Legs: Tarsus with setae on the tarsomeres. Protibia: Differently punctate and / or rugose dorsally and ventrally, with one spur apically between two apical teeth and three additional teeth, the largest being apical-lateral, lateral-proximal, and ventro-apical projecting from the keel (Figures 28 (C) – 29 (C )). Profemur: Rugose and differently punctate. Mesotibia shorter than metatibia (Figures 28 (C) – 29 (C )), both are dorsally flattened and differently punctate, ventrally differently punctate, with two pairs of apical teeth and one proximal tooth. A concavity between the proximal tooth and one of the apical pairs is superficially rugose. Two spurs apically, occasionaly with short setae. Metafemur wider than mesofemur (Figures 28 (C) – 29 (C )), both ‘ c’ - punctate or differently punctate. Procoxa and mesocoxa rugose and / or punctate, occasionally with setae, as are the trochanter. Metacoxa: Ocellate-punctate. Abdomen: Ventrites ocellate-punctate and slightly puntate (Figures 28 (B) – 29 (B )). Fifth ventrite concave anterioriorly with a deep impression; elevation around the spiracle of the last tergite always visible, with whitish velutinous spots. Pygidium: Convex, ocellate-punctate and slightly punctate, occasionally with setae and whitish velutinous spots. Aedeagus: Parameres curved, wide until thin at the apex, with a large central membranous portion (Figure 28 (G, H )). Sexual dimorphism Males with concave abdomen, observed on the first four ventrites. Geographical distribution Quititinus gen. n. is only known from Brazil (Figure 30).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	etymology	Etymology The word ‘ quititinho’ is a Brazilian informal and diminutive form of pequeno (meaning small in Portuguese); with the suffix ‘ nus’ we form the name of the genus, Quititinus, a group like Genuchinus, but quite small, being a masculine noun in the nominative case.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A64FFFDC1F77FB391CFC431F.taxon	discussion	Remarks Upon reviewing Genuchinus from South America (G. parvulus and G. sulcipennis) and comparing them with Genuchinus from Central and North America (including the type species Genuchinus v-notatus Westwood, 1874), we observed differences among some characters significant enough to separate them into two distinct generic groups. Due to the presence of unique characters observed in Quititinus gen. n. (see the diagnosis), the description of a new genus is proposed here. Additionally, the pronotum is a key characteristic for differentiating the New World Cremastocheilini genera, which is one of the crucial features supporting this new proposal. Key to the species of Quititinus Rodrigues, Grossi and Vaz-de-Mello gen. n	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A657FFD91F12FA3F19A644F8.taxon	description	(Figures 28, 30, 31 (F-G, I-J ))	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A657FFD91F12FA3F19A644F8.taxon	diagnosis	Diagnosis Quititinus parvulus is recognised by the following combination of characters: Elytra surface is irregular, with ocellate punctures surrounded by elevations and lateral punctures (Figure 28 (A, E, F )), with short setae.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A657FFD91F12FA3F19A644F8.taxon	description	Redescription Male. Size: length: 7 – 6.5 mm; width: 3.5 – 2.6 mm. Body: Elongate, applanate dorsally, very flattened. Head: Clypeus evenly arched in frontal view, weakly bent upwards; clypeolateral declivity with rounded corners, the lateral transition of the clypeus gradually sloping. Frons almost flat, ocellate-punctate and / or differently punctate, with whitish velutinous spots on the surface. Antegenal protusion evident, eye-canthus superficially punctate; scape semitriangular; mentum circular, superficially punctate. Pronotum: Anterior margin concave and posterior margin convex; lateral margin rounded, wider anteriorly, wider centrally, and narrow posteriorly, forming a short callus at the angle connecting to the posterior margin. Annulate punctation fine, abundant but scattered; punctures are ocellate-punctate. Elytra: Disc elongate and evenly rounded, with one short anteapical umbone in each elytron and a shallow posthumeral emargination. Surface irregular, glossy with ocellate punctures and lateral punctures (Figure 28 (A, E )), with short setae. Velutinous spots arranged on each elytron as follows: inconspicuous lateral point on the anterior half, behind the humeral tubercle; median spot near the suture; two or three spots in the distal third; one or two spots medially and in front of the distal callus; and another irregular spot near the distal edge, behind the callus. Thoracic venter: Mesepimeron: Ocellate-punctate and occasionally rugose, barely visible dorsally. Metaventrite: Slightly punctate centrally, ocellate-punctate laterally, with whitish velutinous spots. Legs: Mesotibia shorter than metatibia, both dorsally flattened and differently punctate, ventrally differently punctate, with two pairs of apical teeth and one proximal tooth. A superficially rugose concavity is present between the proximal tooth and one of the apical pairs; two apical spurs (Figure 28 (D )); with short setae. Abdomen: Ventrites ocellate-punctate and slightly punctate; fifth ventrite concave anteriorly, virtually sunken (Figures 28 (B )). Aedeagus: Parameres curved, wide until thin at the apex, with a large central membranous portion (Figure 28 (G, H )). Sexual dimorphism Males with a concave abdomen, distinctly seen on the first four ventrites. Geographical distribution Quititinus parvulus is known from Brazil, in the biogeographical provinces of Araucaria Forest, Atlantic Forest, and Paraná (Figure 30). Natural history Collected on the trunk under Vriesea sp. (Bromeliaceae). The pupal chamber is made by faeces of the larva itself (Figure 28 (I )). One specimen was captured during the afternoon hours, flying at low altitude and inside the jungle (Martínez 1992).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A657FFD91F12FA3F19A644F8.taxon	discussion	Remarks In the original description, the total length is 9 mm.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A657FFD91F12FA3F19A644F8.taxon	materials_examined	Type specimens examined (n = 2) Holotype of Genuchinus parvulus: (Figure 31 (F, I )) Labels [1: printed text on yellow label] ‘ Hansa Humboldt Sta. Catharina Brasillen Reitter’ / [2: handwritten and printed text on white label] ‘ Genuchinus parvulus sp. n. J. Krikken ms 1980 hOLOTYPE’ / [3: printed text on red label] ‘ Type’ / [4: printed text on white label] ‘ RMNH. INS 1486073 ’ (1 ♀ at RMNH). Holotype of Genuchinus moroni: (Figure 31 (G, J )) Labels [1: handwritten text on white label] ‘ Brasil, E ° de Minas Gerais, Caratinga, Alvarenga y Martínez, Coll Martínez Dic. [1] 980 ’ / [2: handwritten text on red label] ‘ HOLITIPO’ / [3: handwritten text on red label] ‘ Genuchinus ♀ moroni sp. nov. A. Martínez Det. 1980 ’ / [4: printed text on white label] ‘ MACN-En 1311 ’ (1 ♀ at MACN). Non-type specimens examined (n = 9) BRAZIL (9): Rio de Janeiro: Parque Nac. [National Park] Itatiaia, 700 m, 5 – 25. xii. 1974, H. S. and M. A. Monné (1 ♀ CEMT 0192404); Nova Friburgo, − 22.281 ° S, − 42.512 ° W, 1050 m, xii. 2014 – i. 2015, P. C. Grossi leg. (1 CERPE 000008); Nova Friburgo, − 22.281 ° S, − 42.512 ° W, 1050 m, ix. 2017, P. Grossi and D. Parizotto (1 ♀ CERPE); Rio de Janeiro, Corcovado, 1. x. 1953, D. Zajciw (1 ♂ CEMT 00192403). São Paulo: Salesópolis, EstaÇão Biológica Boracéia, Tronco embaixo de Vriesea sp. 26. xi. 2008, Grossi and Parizotto (1 CEMT 00192405, 2 ♂ 2 ♀ CERPE).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A652FFDA1F30FC911B2544CF.taxon	description	(Figures 29, 30)	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A652FFDA1F30FC911B2544CF.taxon	diagnosis	Diagnosis Quititinus sulcipennis is recognised by the following combination of characters: Frons has two longitudinal whitish velutinous lines on its surface. Pronotum has a more prominent callus on the posterior margin (Figure 29 (C )). Pronotum also features two parallel whitish velutinous lines centrally, parallel to a central groove, and macules of whitish velutinous spots on the lateral and posterior margins, which may not be continous laterally. Elytra surface is regular, flat centrally with ocellate punctures that lack elevated delimitation, and ocellate-punctate laterally, without setae (Figure 29 (A, E )). Rescription Female. Size: length: 8.5 – 6.7 mm; width: 3.8 – 2.7 mm. Colour: Body dorsally and ventrally glossy black, with sparse whitish velutinous spots on the surface (Figure 29 (A – B )); legs occasionally reddish brown (Figure 29 (D )); palps and antennomeres brownish. Eyes black or brown. Pronotum: Anterior margin slightly convex centrally between two concavities; posterior margin convex; lateral margin rounded, wider anteriorly, wider centrally, and narrow posteriorly, forming a callus at the angle connecting to the posterior margin (Figure 29 (C )). Two lines of whitish velutinous present centrally, parallel to central groove, and macules of whitish velutinous on lateral and posterior margins of pronotum (Figure 29 (C )). Fine, dispersed punctures, more concentrated in the central sulcus. Elytra: Disc elongate and evenly rounded, with one short anteapical umbone in each elytron and a shallow posthumeral emargination. Surface flat centrally, with ocellate punctures without elevated delimitation, and ocellate-punctate laterally (Figure 29 (A, E )), without setae. Velutinous spots arranged on each elytron, inclunding marks surrounding the humeral tubercle, the anteapical umbone, a median spot close to the elytral suture, and another in the distomarginal region. Thoracic venter: Mesepimeron: Rugose, barely visible dorsally, with whitish velutinous spots. Metaventrite: Slightly punctate centrally, with a whitish velutinous surface latereally and ocellate-punctatures on the sides. Legs: Mesotibia shorter than metatibia, both dorsally flattened; ventral surface with striations forming cells, and punctures, with some setae. Abdomen: Ventrites ocellate-punctate and slightly puntate with setae. The fifth ventrite concave anteriorly, virtually sunken. Elevation around the spiracle of the last tergite always visible. The surface is almost completly covered in whitish velutinous. Pygidium: Convex, variably covered by whitish velutinous; ocellate-punctate, with sparse setae. Morphological variation Frons with two longitudinal whitish velutinous lines on its surface. Pronotum with two whitish velutinous lines in the centre, parallel to a central groove, with whitish velutinous macules on the lateral and posterior margins, may not be continuous laterally. Presence of marks may vary. Geographical distribution	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A652FFDA1F30FC911B2544CF.taxon	description	Quititinus sulcipennis is known from Amazon Forest in Brazil, Colombia, Ecuador, and Peru, in the biogeographical province of Madeira, and Ucayali (Figure 30). Natural history Collected by tapping in understory plant.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A652FFDA1F30FC911B2544CF.taxon	discussion	Remarks We suspect that the specimen from Peru represents a new species, but since it is only a female, we will retain it as Quititinus sulcipennis for now. The specimen exhibits some size variations, with the specimen from Peru being smaller. This is reflected in slight differences in the pronotum and spot patterns, which is somewhat similar to some specimens of Genuchinus nevermanni Schauer, 1935, a species that should probably be classified in Quititinus gen. n., but it does not occur in South America.	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
03E06914A652FFDA1F30FC911B2544CF.taxon	materials_examined	Type specimens examined (n = 1) Holotype: (Figure 31 (H, K )) Labels [1: handwritten text on pink label] ‘ G. sulcipennis West. Ecuador Buckley’. / [2: handwritten text on white label] ‘ Genuchinus sulcipennis’ / [3: printed text on red label] ‘ Type SP’. / [4: printed text on red label] ‘ TYPE’ / [5: printed text on white label with black margin] ‘ Ex. Musae Parry’ / [6: printed text on white label] ‘ MUSÉUM PARIS 1952 COLL R OBERTHÜR’ / [7: handwritten text on white label] ‘? 37 photo’ (1 at MNHN). Non-type specimens examined (n = 2) BRAZIL (1): Amazonas, Jurua, Mineruazinho, 03 ° 34 ʹ 85 ” S / 66 ° 59 ʹ 15 ” W, 18 / 01 / 1996 P. Buhrnheim, N. O. Aguiar et al. col. Coletado por batiÇão em planta de sub-bosque [Collected by tapping an understory plant]. (1 ♀ CERPE 0000002). PERU (1): Huánuco: Leoncio Prado: Tingo Maria, 6. ii. 1984, W. E. Clark (1 ♀ CMNC).	en	Rodrigues, Diego F., Grossi, Paschoal C., Vaz-de-Mello, Fernando Z. (2025): Taxonomic revision of Cremastocheilini (Coleoptera: Scarabaeidae: Cetoniinae) from South America and an updated key for the genera of the New World. Journal of Natural History 59 (17 - 20): 1063-1125, DOI: 10.1080/00222933.2025.2472439, URL: https://doi.org/10.1080/00222933.2025.2472439
