Ptomaphagus (Adelops) inbio Peck, 2003

Peck, Stewart B., 2003, Four New Species Of Ptomaphagus From Costa Rica And Panama (Coleoptera: Leiodidae: Cholevinae: Ptomaphagini), The Coleopterists Bulletin 57 (4), pp. 405-412 : 409

Ptomaphagus (Adelops) inbio Peck , new species

( Figs. 7–11 ).

Type Series. Holotype male: COSTA RICA. Cartago Province. Pan-American Highway km 45, 6 km NW El Empalme, N 98459 W 838589300, 8–26.VI.1997, forest FIT, 1,975 m elevation, 97-19 (S. & J. Peck) (in CMNC) . Paratypes, 3 females with same data (1- INBio, 2- SBPC); and two as follows: Guanacaste Province. 6 km NE Santa Elena, Santa Elena Forest Reserve , 1,640 m, cloudforest FIT, N 10820 . 70 W 84847.89, 11–17. VI .01, one male and one female (S. & J. Peck, 01–12).

Derivation of Name. The specific epithet is an acronym for the Instituto de Biodiversidad, the Costa Rican institution sponsoring the beetle diversity inventory, and is used as a noun in apposition.

Diagnosis. The medium length antenna, rounded tip of the aedeagus in dorsal view, and the shape of the spermatheca distinguish the species.

Description. Shape elongate oval. Body length 3.3–3.5 mm, body width 1.4–1.5 mm. Color uniform dark brown. Antenna medium length / ( Fig. 7 ), reaching to base of pronotum when laid back; segments 3–7 longer than broad, 8 3 4 length of its width. Pronotum widest at base, with fine dense transverse striae. Elytra with fine dense oblique striae. Flight wings functional. Mesosternal carina distinct, of medium development in profile. Aedeagus thicker, curving to truncate tip in lateral view ( Fig. 8 ), dorsal view of tip rounded ( Fig. 9 ); internal flagellum (internal sac) very long, slightly undulating. Spermatheca shaft of nearly uniform width, with reverse bend one third from base ( Fig. 10 ); distal tip with low and flat bulb ( Fig. 11 ).

Notes. The species is closest in details of the antennae and aedeagus to P. talamanca of Panama, known from a single flightless male at 2,100 m (6,9009) in the Talamanca Range, Panama.

Figures

Figs. 7–11. Structures of Ptomaphagus (Adelops) inbio n. sp. 7) Antenna; 8) lateral view, aedeagus; 9) dorsal view, apex of aedeagus; 10–11) spermatheca. Scale line for antenna and aedeagus 0.2 mm, for spermathecae 0.1 mm.