Bolbapium howdeni Martínez, 1976

Carvalho, Edrielly Carolinne & Vaz-de-Mello, Fernando Z., 2022, A taxonomic revision of Bolbapium Boucomont, 1910 (Coleoptera: Scarabaeoidea: Geotrupidae), Journal of Natural History 56 (13 - 16), pp. 769-828 : 789-790

Bolbapium howdeni Martínez, 1976

( Figures 6 (d), 11(d), (e), (f), 15(a))

Bolbapium howdeni Martínez, 1976: 542–546 (original description)

Diagnosis

Frons without transverse carina between the eyes, formation of interocular tubercles. Pronotum mesoanteriorly with curved structure towards the head, without angulations on each side of structure ( Figure 6 (d)).

Type material. The type series are deposited at the MACN. It was possible to analyse the holotype from photo.

Holotype. ‘ BOLIVIA /Dep. Sta. Cruz/Prov. Ichilo/Buenavista/ Coll. Martínez //Oct: 949// ; HOLOTYPUS [red rectangular label]; Bolbapium /howdeni/ ♂ /sp.nv./ A Martínez – DET – 76; Fichado’ (MACN-Em/1136).

Redescription

Body size: Legth: 5.91–7.47 mm. Width: 4.48–5.99 mm. Head: Frons without transverse carina between the eye, and presents interocular tubercle, one on each side, the base being wider than the apex; slight slope between the tubercles, marked by unevenly distributed points. Pronotum: Pronotum mesoanteriorly with curved structure towards the head, without angulations on each side of structure, and occupying more than half the interocular width. Disc sides with unevenly distributed points. Legs: Second and third pair of legs with adjacent spurs; both spiniform. The first spur is smaller than the first tarsomere and the second is larger. Male terminalia: In dorsal view, short and flat parameres ( Figure 11 (d)). In lateral view posterior margin with rounded projection beyond the apex of the parameres ( Figure 11 (f)). Sexual dimorphism: This species does not feature sexual dimorphism. Remarks: Martínez (1976) described the species based on two individuals from Bolivia . The type series consists of the holotype, collected by J .P .R. de Martínez and A. Martínez in the province of Ichilo, Buenavista, and the paratype, collected by A . Martínez in the province of Sara , Santa Rosa . Both are in the Argentine Museum of Natural Sciences , Buenos Aires, Argentina .

Differential diagnosis. Bolbapium howdeni is morphologically similar to B. boillyi sp. nov., B. borgmeieri ; B. caesum , B. modestum , B. parcepunctatum , B. sampaioorum sp. nov., and B. santanaorum sp. nov. in not presenting the transverse carina forehead interconnecting the interocular tubercles. However, it is easily differentiated by presenting at the pronotum a curved structure towards the head, without angulations.

Geographical distribution. Brazil (Acre, Amazonas, Mato Grosso and Pará) and Bolivia (Santa Cruz) .

Non-type material. 20 specimens.

BOLIVIA: Santa Cruz, Est . Experimental Gral. Saavedra , [17°13 ʹ 43”S, 63°13 ʹ 2”W], i .1974, L . Stange & C . Porter leg . (1 CEMT); Same location, iii .1973, L . Stange & C . Porter leg . (1 CEMT); Ichilo, Cam . Vibora , [16°58 ʹ 34”S, 64°10 ʹ 1”W], 15–17 .x .1998, M . Gutierrez, L . Tangara & P . Coro leg. (1 CEMT). BRAZIL: Acre, Rio Branco , Faz . Catuaba , [10°3 ʹ 32”S, 67°35 ʹ 49”W], ii .1997, F .Z . Vaz-de-Mello leg . (1 CEMT); Mâncio Lima, ParNa Serra do Divisor , 7°27 ʹ 4”S, 73°38 ʹ 57”W, 06– 10 .xii .2019, PlotB FIT 1–2, R .A . Azevedo leg . (1 CEMT); Same location, 7°24 ʹ 59”S, 73°37 ʹ 56”W, 10–14 .xii .2019 PlotC FIT 4–3, R .A . Azevedo leg. (1 CEMT). Amazonas, Ipixuna, Rio Gregório , Com . Lago grande, 7°10 ʹ 11”S, 70°49 ʹ 10”W, 18–23 .v .2011, malaise, J .A . Rafael, J.T. Câmara,R.F. Silva, A . Somavilla & C . Gonçalves leg. (1 CEMT). Pará, Novo Progresso, Faz . Florentino. Amazon Forest ., 7°8 ʹ 11”S, 55°23 ʹ 42”W, x–xi.2010, ligth, D . Krinski leg . (1 CEMT) (1 COPL). Mato Grosso, Chapada dos Guimarães, [15°27 ʹ 53”S, 55°45 ʹ 1”W], 17–24 .x .2009, luz, S .P . Rosa, F. Fernandes, B . Medeiros & L . Prado leg . (1 CEMT); Cáceres , [16°4 ʹ 1”S, 57°40 ʹ 57”W], 1 .xi .2009, R .G . Moura leg . (1 CEMT); Chapada dos Parecis , 30 km N Uirapuru, 14°17”‘S, 59°15”‘W, 1-15 . xii .2001, FIT, A . Foucart leg . (2 CEMT); Poconé, Sesc Pantanal , [16°23 ʹ 34”S, 56°30 ʹ 0”W], 21 . xi .2002, malaise (1 CEMT); Cuiabá, Dist . Guia Faz. Santhidi , 15°28 ʹ 47”S, 56°7 ʹ 33”W, 3 .xi .2010, ligth, L .R . Silva leg . (1 CEMT); Tangará da Serra , [14°37 ʹ 11”S, 57°29 ʹ 15”W], 7-11 .ii .2011, C . Alves leg . (1 CEMT); Same location, Campus UNEMAT/ experimental field, 14°38 ʹ 58”S, 57°25 ʹ 24”W, 14 .xi .2017, light trap, R . J . Silva leg . (1 CEMT); Vila Bela da Santissima Trindade, Trilha do Jatobá , 16°5 ʹ 55”S, 58°26 ʹ 18”W, 14 .xi .2015, A . Chagas Jr & A . Kury leg. (2 CEMT).

Figures

Figure 6. (a). Pronotum with almost rectangular structure, Bolbapium modestum (Castelnau, 1840); (b). head with tubercle adjacent to each eye, Bolbapium borgmeieri Martínez, 1976; (c). head without tubercles, Bolbapium matheusi Carvalho and Vaz-de-Mello, sp. nov.; (d). pronotum with curved structure towards the head, without angulations, Bolbapium howdeni Martínez, 1976; (e). head with tubercles wider than long; pronotum with rectangular structure, Bolbapium sampaioorum Carvalho and Vaz-de-Mello, sp. nov.; (f). head with tubercle narrow adjacent to each eye; pronotum with curved structure, Bolbapium caesum (Klug, 1843).

Figure 11. Aedeagus. Bolbapium matheusi Carvalho and Vaz-de-Mello, sp. nov. (a). dorsal view; (b). ventral view; (c). lateral view. Bolbapium howdeni Martínez, 1976 (d). dorsal view; (e). ventral view; (f). lateral view. Bolbapium sampaioorum Carvalho and Vaz-de-Mello, sp. nov. (g). dorsal view; (h). ventral view; (i). lateral view. Bolbapium caesum (Klug, 1843) (j). dorsal view; (k). ventral view; (l). lateral view.