Bolbapium matheusi 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 : 798-799

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

( Figures 6 (c), 11(a), (b), (c), 14(b))

Diagnosis

Frons without tubercles, clypeal carina extending to the mid-frontal forming slight angulation; larger than 5 mm; pronotum mesoanteriorly with little-elevated tubercle, almost bidentate ( Figure 6 (c)).

Etymology. Named in memory of Matheus José, dear cousin of the first author who left his family too soon.

Type locality. Santa Teresinha, Paraíba, Brazil.

Holotype. ‘ Brasil, PB, S. Teresinha / Faz. Tamanduá Arm. B 3/ 9.v.2011 Reserva / Lima A.D. A’ ♂ ( CEMT 74395 ).

Paratypes. 15 specimens examined.

BRAZIL, Bahia, Mata de São João , [12°31 ʹ 32”S, 38°18 ʹ 40”W], 4 .viii .2014, Light, M .E . Maldaner leg . (2♀ CEMT); Feira de Santana , 12 .vi .2002, F . Bravo leg . (1♂ CEMT) Same location, UEFS, [12°12 ʹ 1”S, 38°58 ʹ 18”W], 12 .v .2002, Freddy Bravo leg . (1♀ CEMT) . Without data (1♀ CEMT) . Paraíba, João Pessoa, Campus universitário Mata atlântica primaria, [7° 8 ʹ 21”S, 34°51 ʹ 31”W], 29.iii.1982, light, R. da Paz leg. (1♂ CEMT); São José dos Cordeiros, Faz. Almas , [7°28”‘S, 36°53”‘W], 8 e 9.iii.2003, R. Rothea leg. (1♂ CEMT), Same location, light trap, Rothéa & Creão leg . (1♂ CEMT); Santa Teresinha, Faz . Tamanduá trap B3, [7° 1 ʹ 31”S, 37°23 ʹ 31”W], 9 .v .2011, A .D .A. Lima leg . (1♀ 1♂ CEMT) . Pernambuco, Camaragibe , aldeia, 7°58 ʹ 1”S, 35°0 ʹ 15”W, 1–31 .vii .2016, L .V .P.C. Grossi leg . (1♂ CEMT); Serra Talhada , [7° 58 ʹ 55”S, 38°17 ʹ 21”W], 16 .iv .1971, A . Lima leg . (1♀ CEMT); Brejo de Madre de Deus , [8° 08 ʹ 25”S, 36°22 ʹ 17”W], i–iii .2004, coll . E & R . Stronkhorst . (1 COPL); Gravatá, 08 .vi .2015, L .S . Albuquerque leg . (1♀ CEMT) . Rio Grande do Norte, Baia Formosa, RPPN Mata Estrela , 6° 23 ʹ 3”S, 35°1 ʹ 54”W, 25 .vi .2014, A .P .M. Santos leg . (1♂ CEMT) .

Description

Body size: Length: 5.68–6.55 mm. Width: 4.19–4.98 mm. Head: clypeal carina extending to the mid-frontal forming slight angulation; frons without structures; every surface with sparse points, unevenly distributed. Pronotum: anterior region of the disc with little developed tubercle, almost bidentate. The entire pronotum surface with sparse points, greater concentration on the sides of the disc and unevenly distributed. Ventral region of the thorax: Central region of the metaventrite with a few unevenly distributed setae. Male terminalia: In dorsal view, apparently short parameres with the approximate base and the apex greatly separated ( Figure 11 (a)). In lateral view, elongated parameres and posterior margin as long as the parameres ( Figure 11 (c)). Sexual dimorphism: Males have a smooth surface and setae are absent, while females have up to four setae in the posterior region of the clypeus and a carenaded clypeus surface. Remarks: The primary type is deposited at the CEMT.

Differential diagnosis. Bolbapium matheusi sp. nov. is morphologically similar to B. lucidulum , B. paralucidulum , B. quinquestriatum and B. sulcifrons in not presenting the forehead with tubercles and interocular carinae. However, it is easily differentiated by presenting a slight sinuosity in the anterior region of the pronotum.

Geographical distribution. Brazil (Rio Grande do Norte, Paraíba, Bahia and Pernambuco) .

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.