Dylobolus rotundicollis Thomson, 1868

Santos-Silva, Antonio & Androw, Robert A., 2022, New species, new synonymies, a new rank, and new records in Desmiphorini, Saperdini, and Hemilophini (Coleoptera: Cerambycidae: Lamiinae), Insecta Mundi 2022 (938), pp. 1-14 : 11

publication ID	https://doi.org/10.5281/zenodo.7167968
publication LSID	lsid:zoobank.org:pub:DCAB0F19-79E2-462F-B7AB-940BD901237D
persistent identifier	https://treatment.plazi.org/id/03D687A0-FF80-FFD0-FF0A-FE5DFE60E247
treatment provided by	Felipe (2022-10-08 21:20:07, last updated by Plazi 2023-11-07 16:14:07)
scientific name	Dylobolus rotundicollis Thomson, 1868
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Dylobolus rotundicollis Thomson, 1868 View in CoL

( Fig. 28–29 View Figures 25–32 )

Dylobolus rotundicollis Thomson 1868: 196 View in CoL . Mecas ruficollis Horn 1878: 44 View in CoL . Mecas laticeps Bates 1881: 204 View in CoL . Mecas mexicana Bates 1881: 204 View in CoL . Mecas vitticollis Casey 1913: 363 View in CoL . Pannychis atripennis Bates 1885: 427 View in CoL ; Aurivillius 1923: 599 (cat.); Blackwelder 1946: 626 (checklist). New synonym. Pannychina atripennis View in CoL ; Gilmour 1962: 138; 1965: 646 (cat.); Chemsak et al. 1992: 161 (checklist); Monné and Giesbert

1994: 293 (checklist); Monné 1995: 70 (cat.); Martins and Galileo 1998: 128; Monné 2005: 619 (cat.); Monné and

Hovore 2006: 291 (checklist); Monné 2022: 1061 (cat.). Pannychella atripennis ; Noguera and Chemsak 1996: 408 (cat.; wrong genus). Note: For full references on Dylobolus rotundicollis see Monné (2022), Tavakilian and Chevillotte (2021), and Monné and

Nearns (2022).

Remarks. Thomson (1868) described Dylobolus to include D. rotundicollis Thomson, 1868 (translated): “Body elongated, cylindrical; frons convex; antennae simple, slender, slightly surpassing middle of the body, 11-segmented, scape short, subclavate, antennomere III the longest, IV slightly longer than V, VI–XI gradually shorter; prothorax quadrate, rounded laterally, without lateral tubercles; elytra cylindrical, elongated, apex obliquely lunate; prosternal process and mesoventral process laminiform; legs short, robust, subequal; tarsal claws slightly divergent, very bidentate basally.” Bates (1881) considered Dylobolus as a junior synonym of Mecas . Later, Chemsak and Linsley (1973) revalidated Dylobolus and considered it as a subgenus of Mecas . As mentioned in the introduction, Souza et al. (2020) considered Dylobolus as a genus different from Mecas .

Gilmour (1962) described Pannychina in Aerenicini to include Pannychis atripennis Bates, 1885 : “Elongate, subcylindrical. Frons subquadrate. Prothorax subcylindrical, not rotundate laterally. Antennae slightly shorter than body, basal segments fringed beneath. Elytra smooth, not costate; apices obliquely truncate against the suture. Mesotibiae without a dorsal sulcus; tarsal claws fissile.” Martins and Galileo (1998), based on the opinion of Lane (1974), transferred Pannychina to Phytoeciini .

The definition of Mecas (Dylobolus) by Chemsak and Linsley (1973) suggests that Pannychina atripennis is just one of the variations of Dylobolus rotundicollis . The shape of the prothorax in P. atripennis , not rounded laterally, probably is just a variation, since there are specimens of D. rotundicollis with the prothorax not distinctly rounded laterally. Based on the photographs of the types of both species at our disposal, original descriptions, and redescriptions, and synonymies proposed by Chemsak and Linsley (1973), Pannychis atripennis (= Pannychina atripennis ) is also a junior synonym of Dylobolus rotundicollis . In fact, comparing the photograph of the holotype of Mecas vitticollis Casey, 1913 (see Lingafelter et al. 2022) with the holotype of Pannychis atripennis ( Fig. 29 View Figures 25–32 ), it is possible to see that they are nearly identical, although the sides of the prothorax are slightly more rounded in the former. This reinforces that this feature used by Gilmour (1962) in Pannychina is just a morphological variation in D. rotundicollis . Therefore, Pannychina is a junior synonym of Dylobolus , currently, a genus allocated in Hemilophini, because their type species are synonyms (each of these genera has only the type species included in it).

References

Aurivillius C. 1923. Cerambycidae: Lamiinae II. p. 323 - 704. In: Junk W, Schenkling S (eds.). Coleopterorum Catalogus, pars 74. W. Junk; Berlin. 381 p.

Bates HW. 1881. Longicornia. p. 153 - 224. In: Godman FD, Salvin O (eds.). Biologia Centrali-Americana, Insecta, Coleoptera. Vol. 5. Taylor and Francis. London. xii + 525 p.

Bates HW. 1885. Supplement to Longicornia. p. 249 - 436. In: Godman FD, Salvin O (eds.). Biologia Centrali-Americana, Insecta, Coleoptera. Vol. 5. Taylor and Francis; London. xii + 525 p.

Blackwelder RE. 1946. Checklist of the coleopterous insects of Mexico, Central America, the West Indies and South America. Part 4. Bulletin of the United States National Museum 185: 551 - 763.

Casey TL. 1913. Further studies amongst the American Longicornia. Memoirs on the Coleoptera 4: 193 - 388.

Chemsak JA, Linsley EG. 1973. The genus Mecas LeConte (Coleoptera: Cerambycidae). Proceedings of the California Academy of Sciences (4) 39 (12): 141 - 184.

Chemsak JA, Linsley EG, Noguera FA. 1992. Listados faunisticos de Mexico. II. Los Cerambycidae y Disteniidae de Norteamerica, Centroamerica y las Indias Occidentales (Coleoptera). Universidad Nacional Autonoma; Mexico City. 204 p.

Gilmour EF. 1962. Synopsis of the tribe Aerenicini (Coleoptera, Cerambycidae, Lamiinae). Revista de Biologia Tropical 10 (2): 123 - 147.

Gilmour EF. 1965. Catalogue des Lamiaires du Monde (Col., Cerambycidae). Museum G. Frey, Tutzing bei Munchen 8: 559 - 655.

Horn GH. 1878. Notes on some genera of Cerambycidae of the United States. Transactions of the American Entomological Society 7: 41 - 50.

Lane F. 1974. A synopsis of Dr. Gilmour's synopsis of the tribe Aerenicini (Col., Cerambycidae, Lamiinae). Studia Entomologica 17 (1 - 4): 349 - 377.

Lingafelter SW, Monne MA, Nearns EH. 2022. Online Image Database of Cerambycoid Primary Types of the Smithsonian Institution. Available at http: // SmithsonianCerambycidae. com / (Last accessed 13 March 2022.)

Martins UR, Galileo MHM. 1998. Revisao da tribo Aerenicini Lacordaire, 1872 (Coleoptera, Cerambycidae, Lamiinae). Arquivos de Zoologia 35 (1): 1 - 133.

Monne MA, Giesbert EF. 1994. Checklist of the Cerambycidae and Disteniidae (Coleoptera) of the Western Hemisphere. Wolfsgarden Books; Burbank. 409 p.

Monne MA. 1995. Catalogue of the Cerambycidae (Coleoptera) of the Western Hemisphere. Part XX. Subfamily Lamiinae: Tribos Hemilophini, Aerenicini, Pretiliini, Falsamblesthiini and Calliini. Sociedade Brasileira de Entomologia; Sao Paulo. 120 p.

Monne MA. 2005. Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae. Zootaxa 1023: 1 - 759.

Monne MA, Hovore FT. 2006. A Checklist of the Cerambycidae, or longhorned wood-boring beetles, of the Western Hemisphere. Bio Quip Publications; Rancho Dominguez. 393 p.

Monne MA, Nearns EH. 2022. Catalogue of the Cerambycidae (Coleoptera) of Canada and United States of America. Part IV. Subfamily Lamiinae. Available at https: // cerambycids. com / catalog / (Last accessed 26 February 2022.)

Noguera FA, Chemsak JA. 1996. Cerambycidae (Coleoptera), pp. 381 - 409. In: Llorente Bousquets JE (Ed.), Biodiversidad taxonomia, y biogeografia de artropodos de Mexico: Hacia una sintesis de su conocimiento. Volumen I. Universidad Nacional Autonoma de Mexico; Mexico City. 660 p.

Souza DS, Marinoni L, Monne ML, Gomez-Zurita J. 2020. Molecular phylogenetic assessment of the tribal classification of Lamiinae. Molecular Phylogenetics and Evolution 145: 1 - 16.

Tavakilian GL, Chevillotte H. 2021. Titan: base de donnees internationales sur les Cerambycidae ou Longicornes. Available at http: // titan. gbif. fr / (Last accessed 26 February 2022.)

Thomson J. 1868. Materiaux pour servir a une revision des lamites (Cerambycides, coleopteres). Physis Recueil d'Histoire Naturelle 2 (6): 146 - 200.

Figures

Figures 25–32. Pannychis and Pannychina spp. 25) Pannychis callicera Bates, 1881, holotype female. 26) Pannychis sericea Thomson, 1864, left side, not type, identified as male, right side, holotype. 27) Pannychis ducalis Bates, 1881, type. 28) Pannychina atripennis (Bates, 1885), holotype. 29–32) Elytral apex: 29) Pannychis atripennis, holotype; 30) Pannychis callicera, holotype female; 31) Pannychis ducalis, type; 32) Pannychis sericea, holotype. All by Jesus Santiago Moure.