Bolbapium vazdemelloi, Dantas & Ferreira & Bravo, 2024

Dantas, Caique, Ferreira, André da Silva & Bravo, Freddy, 2024, New species of Bolbapium Boucomont, 1910 (Coleoptera: Geotrupidae) from Brazil, EntomoBrasilis (e 1075) 17, pp. 1075-1075 : 1-3

Bolbapium vazdemelloi sp. nov. ( Figures 1A–I )

urn:lsid:zoobank.org:act:0218D252-0156-4F6A-841A-759B8CB282B7

Type material. Holotype male: BRAZIL, Bahia, [Aracatu], Fazenda Lagoa do Tamburí [-14.60000000, -40.43333333, 750 m], km 400, toward Vitória da Conquista / Brumado , 12.iv.2013, ( MZFS) . Paratypes: 10 males, same data as holotype ( MZFS) ; 5 males, same data as holotype ( CEMT) .

Diagnosis: Head with tubercle adjacent to each eye ( Figures 1A, D–E ). Pronotum with little expanded tubercle, practically bidentate ( Figures 1A, D–E ); all the surface with scattered points ( Figures 1C–D, F ). Parameres symmetrical, with acute and divergent apex in dorsal view ( Figures 1G, I ).

Description (holotype, male): ( Figures 1A, C–F ). Body size: Total length: 7.11 mm, width: 5.02 mm. Colour: uniformly dark brown. Head: clypeal carina expanding to the mid-frontal area generating a little angulation; frons without tubercles; surface completely with scattered points, heterogeneous ( Figures 1D–E ). Pronotum: anterior region of disc with little expanded tubercle, practically bidentate. Points spread over the complete surface of the pronotum, with greater evidence on the sides of the disc and with a non-standard distribution. Ventral region of the thorax: central region of the metaventrite with a few scattered in a non-standard way setae. Male terminalia ( Figures 1G–I ): parameres, symmetrical, with the approximate base and truncated and divergent apex, widely separated in dorsal view ( Figure 1G ); completely visible in lateral view ( Figure 1H ); only the apex visible in ventral view ( Figure 1I ).

Sexual dimorphism: female unknown.

Remarks: Bolbapium vazdemelloi sp. nov. has a head with tubercle adjacent to each eye, similar to Bolbapium luederwaldti Carvalho & Vaz-de-Mello, 2022 , Bolbapium boillyi Carvalho & Vaz-de-Mello, 2022 , Bolbapium borgmeieri Martínez, 1976 , Bolbapium caesum ( Klug, 1843) , and Bolbapium furtadoi Carvalho & Vaz-de-Mello, 2022 . However, B. vazdemelloi sp. nov. has the anterior region of pronotum with a small, expanded tubercle, practically bidentate ( Figures 1A, C–F ), a characteristic that is absent or morphologically different in the other previously mentioned species. In B. luederwaldti , the pronotum is a concave structure (see Figure 3D in Carvalho & Vaz-de-Mello 2022); in B. borgmeieri , the pronotum, mesoanteriorly, is a curved structure with width less than half the interocular width (see Figure 6B in Carvalho & Vaz-de-Mello 2022); in B. caesum , the pronotum, mesoanteriorly, is a curved structure, with non-continuous lines and with small angulation on each side of the structure (see Figure 6F in Carvalho & Vaz-de-Mello 2022); in B. furtadoi , the pronotum is a simple bi-tuberculated structure at the front and with small tubercle on each side of the central projection (see Figure 4C in Carvalho & Vaz-de-Mello 2022), and in B. boillyi , the pronotum, mesoanteriorly do not have an evident structure, the central disc has a slight sinuosity (see Figure 4D in Carvalho & Vaz-de-Mello 2022). Bolbapium vazdemelloi sp. nov. ( Figures 1D–E ) is morphologically similar to B. matheusi (see Figure 6C in Carvalho & Vaz-de-Mello 2022), both species have the anterior region of pronotum with little expanded tubercle, practically bidentate; however, B. matheusi does not have the head with tubercle adjacent to each eye (see Figure 6C in Carvalho & Vaz-de-Mello 2022) that is present in the new species.

Geographical distribution: Bolbapium vazdemelloi sp. nov. is known only from the type locality ( Figure 2 ).

Identification key

Bolbapium vazdemelloi sp. nov. was included in couplet 19 of the identification key for the species Bolbapium ( Carvalho & Vaz-de-Mello 2022).

19. Frons with tubercle adjacent to each eye; less than 5 mm. Midwest and Northeast Brazil................................................ A

19'. Frons without tubercles, just clypeal carina extending to the mid-frontal forming slight angulation; larger than 5 mm (see Figure 6C in Carvalho & Vaz-de-Mello 2022). Northeast Brazil..... Bolbapium matheusi Carvalho & Vaz-de-Mello, 2022

A. Parameres symmetrical, with acute and parallels apex in dorsal view; connected at the base and separated at the apex (see Figure 10J in Carvalho & Vaz-de-Mello 2022); only the apex is visible in lateral view (see Figure 10L in Carvalho & Vaz-de-Mello 2022) ....... Bolbapium borgmeieri Martínez, 1976

A'. Parameres symmetrical, with the approximate base and acute and divergent apex, widely separated in dorsal view ( Figure 1G ); completely visible in lateral view ( Figure 1H ) ....... ................................................... Bolbapium vazdemelloi sp. nov.

Figures

Figure 1. Bolbapium vazdemelloi sp. nov., Holotype housed at MZFS. A – Lateral habitus, in detail the tubercles in head and pronotum; B – labels attached to the holotype; C – Head and pronotum (dorsal view); D Head and pronotum (latero-dorsal view); E – Head and anterior portion of pronotum in detail (latero-dorsal view);F – Head and pronotum (dorso-frontal view); G–I Aedeagus (dorsal, lateral and ventral view respectively).

Figure 2. Bolbapium vazdemelloi sp. nov. distribution. Acronyms for Brazilian states: AL (Alagoas), BA (Bahia), ES (Espírito Santo), GO (Goiás), MA (Maranhão), MG (Minas Gerais), PE (Pernambuco), PI (Piauí), SE (Sergipe), TO (Tocantins).