Bolbapium boillyi Carvalho, 2022

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 : 783-784

Bolbapium boillyi Carvalho and Vaz-de-Mello, sp. nov.

( Figures 4 (d), 9(d), (e), (f), 12(b))

Diagnosis

Clypeus with lateral carinae extending backwards, meeting the tubercles of the frons. Frons with tubercle adjacent to each eye, with base wider than apex. Pronotum mesoanteriorly without evident structure, central disc with slight sinuosity ( Figure 4 (d)).

Etymology. Named after Olivier Boilly, friend, great Geotrupidae specialist, and major contributor to the CEMT collection.

Type locality. Saul, Cayenne, French Guiana.

Holotype. ‘ GUYANE FR: Cayenne./Saul. 14.iii.2011. SEAG/leg’ ( CEMT 74247 ).

Paratypes. 93 specimens examined.

BRAZIL: Pará, Itaituba, Santarenzinho, Rio Tapajos , Diring leg . (1 MZSP); Roraima, Ilha de Maracá , [2°2 ʹ 7”N, 50°27 ʹ 5”W], ix .1996, Ribeiro & Vaz-de-Mello leg. (1 CEMT). COLOMBIA: Montería, Córdoba, v .1996, Rafael Muskus leg. (1 CFPL-COL); GUIANA FRANCESA: Cayenne, Saul, [3°51 ʹ 37”N, 53°18 ʹ 15”W], 14 .iii .2011, SEAG leg. (5 CEMT); Same location, 17 .i .2011, FIT, SEAG leg. (3 COPL); Same location, 11 .i .2011, FIT, SEAG leg. (5 COPL); Same location, 09 .ix .2011, FIT, SEAG leg. (4 COPL); Same location, 26 . viii .2010, FIT, SEAG leg. (2 COPL); Same location, 07 .vii .2011, FIT, SEAG leg. (1 COPL); Same location, 24 .i .2011, FIT, SEAG leg. (2 COPL); Same location, 31 .i .2011, FIT, SEAG leg. (4 COPL); Same location, 02 .ix .2010, FIT, SEAG leg. (1 COPL); Same location, 17 .ix .2010, FIT, SEAG leg. (2 COPL); Same location, 13 .viii .2010, FIT, SEAG leg. (1 COPL); Same location, 23 .ix .2010, FIT, SEAG leg. (1 COPL); Same location, 30 .vi .2011, FIT, SEAG leg. (2 COPL); Same location, 24 .viii .2011, FIT, SEAG leg. (1 COPL); Same location, 28 .vii .2011, FIT, SEAG leg. (1 COPL); Same location, 08 .vi .2011, FIT, SEAG leg. (2 COPL); Same location, 23 .viii .2011, FIT, SEAG leg. (2 COPL); Same location, 22 .iii .2011, FIT, SEAG leg. (1 COPL); Same location, 23 .vi .2011, FIT, SEAG leg. (3 COPL); Same location, 30 .iii .2011, FIT, SEAG leg. (2 COPL); Same location, 24 .i .2011, FIT, SEAG leg. (7 COPL); Same location, 11 .viii .2011, FIT, SEAG leg. (4 COPL); Same location, 21 .vii .2011, FIT, SEAG leg. (3 COPL); Same location, 06 .v .2011, FIT, SEAG leg. (2 COPL); Réserve des Nouragues , [4°05 ʹ 36”N, 52°53 ʹ 58”W], 02 .ix .2010, FIT, SEAG leg. (1 COPL); Montagne des Chevaux , [4°43 ʹ 23”N, 52° 24 ʹ 46”W], 01 .iv .2012, FIT, SEAG leg. (2 COPL); Same location, 10 .vi .2012, FIT, SEAG leg. (2 COPL); Same location, 4°44 ʹ 56”N, 52°26 ʹ 28”W, 11 .ii .2013, FIT (V), SEAG leg. (1 CEMT). Same location, 11 .viii .2012, FIT (V), SEAG leg. (1 CEMT). Monte Itoupé , [3°32 ʹ 12”N, 53° 34 ʹ 24”W], 11 .i .2016, FIT, SEAG leg. (1 COPL). St. Laurent du Maroni, Bélvédère de Saul, 3° 37 ʹ 22”N, 53°12 ʹ 57”W, 15 .vi .2011, SEAG leg. (1 CEMT); Same location, 27 .v .2011, FIT 3, SEAG leg. (3 CEMT); Same location, 9 .ix .2011, FIT – V2, SEAG leg. (2 CEMT); Same location, 9 .ix .2011, FIT – V1, SEAG leg. (1 CEMT); Same location, VPV5, 3°37 ʹ 22”N, 53° 12 ʹ 57”W, 7 .iv .2011, FIT, SEAG leg. (1 CEMT); Same location, 13 .v .2011, FIT (V), SEAG leg. (1 CEMT); Same location, 20 .v .2011, FIT (PIV), SEAG leg. (1 CEMT); Same location, 3°27 ʹ 22”N, 53°13 ʹ 57”W, 30 .xi .2010, SEAG leg. (1 CEMT); Same location, 3°27 ʹ 22”N, 53°13 ʹ 57”W, 28 . ii .2011, SEAG leg. (1 CEMT); Same location, 3°27 ʹ 22”N, 53°13 ʹ 57”W, 7 .ii .2011, SEAG leg. (8 CEMT); Same location, 3°27 ʹ 22”N, 53°13 ʹ 57”W, 18 .vii .2004, SEAG leg. (1 CEMT).

Description

Body size: Length: 5.93–6.80 mm. Width: 4.46–5.34 mm. Head: Surface of clypeus smooth; trituberculated clypeal carinae, the lateral ones being slightly higher than the median, subtly rounded edges; lateral carina of the clypeus extending backwards to meet the frons tubercles. Frons with tubercle adjacent to each eye, with base wider than apex. Interocular region with slope marked by points is defined, other regions of the front without evident punctuation. Pronotum: Without evident structures, central disc with slight sinuosity. Male terminalia: In dorsal view, elongated and asymmetric parameres when closed ( Figure 9 (d)); the right being larger and slightly more curved than the left, when open they are parallel and of the same size. In lateral view longitudinal parameres to the phallobase ( Figure 9 (f)). Sexual dimorphism: This species does not feature sexual dimorphism. Remarks: The primary type is deposited at CEMT.

Differential diagnosis. Bolbapium boillyi sp. nov. is morphologically similar to B. borgmeieri , B. caesum , B. howdeni , 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 the lack of structures on the pronotum.

Geographical distribution. Brazil (Amapa), Colombia (Monteria) and French Guiana (Cayenne; Saint Laurent du Maroni).

Figures

Figure 4. (a). Pronotum with robust bituberculated structure, connected at base and separated at the apex, Bolbapium quadrispinosum (Luederwaldt, 1931); (b). head with tranverse carina without tubercles, Bolbapium limeirai Carvalho and Vaz-de-Mello, sp. nov.; (c). head with tranverse carina with tubercles, Bolbapium furtadoi Carvalho and Vaz-de-Mello, sp. nov.; (d). head with tubercle adjacent to each eye, with base wider than apex,Bolbapium boillyi Carvalho and Vaz-de-Mello,sp. nov.; (e). clypeal carina extending to the mid-frontal region and meeting in the central region, Bolbapium paralucidulum Ide and Martínez, 1993; (f). clypeal carina short, not reaching the midline region of the frons, Bolbapium lucidulum (Klug, 1843).

Figure 9. Aedeagus. Bolbapium quinquestriatum (Boucomont, 1932) (a). dorsal view; (b). ventral view; (c). lateral view. Bolbapium boillyi Carvalho and Vaz-de-Mello, sp. nov. (d). dorsal view; (e). ventral view; (f). lateral view. Bolbapium paralucidulum Ide and Martínez, 1993 (g). dorsal view; (h). ventral view; (i). lateral view. Bolbapium lucidulum (Klug, 1843) (j). dorsal view; (k). ventral view; (l). lateral view.