Chelotrupes, JEKEL, 1866

Dellacasa, Marco & Dellacasa, Giovanni, 2008, Revision of the genus Chelotrupes Jekel, 1866 n. stat. (Insecta, Coleoptera, Geotrupidae), Zoosystema 30 (3), pp. 629-640 : 631

KEY TO THE SPECIES OF CHELOTRUPES JEKEL, 1866

1. Pronotum, in males, with antero-lateral hornlike apophyses anteriorly projected from above the anterior angles ( Fig. 1A ); pronotum, in females anteriorly truncate ( Fig. 1I ); epistoma glabrous in both sexes; scutellum subregularly tringular ( Fig. 1L ). Shiny black. Length 10.0-21.0 mm. Balearic Islands?, southern Spain, central and southern Portugal....................................................................................................... C. momus n. comb.

— Pronotum, in males, with antero-lateral hornlike apophyses projected anteriorly from the anterior angles ( Fig. 1D, E ), pronotum, in females, anteriorly deeply excavate ( Fig. 1G, H ); epistoma glabrous in males, pubescent on disc in females; scutellum broadly transverse ( Fig. 1J, K ) ................................................................................................................. 2

2. Upper face entirely with metallic shine; first segment of hind tarsi usually as long as the following three combined; pronotum, in males, with antero-lateral hornlike apophyses straight, subparallel, only faintly inwardly curved apically ( Fig. 1D ), the central one upturned; pronotum, in females, smooth on disc, moderately irregularly punctate on sides, with anterior angles obtusely rounded and anteriorly projected ( Fig. 1G ). Blackish. Length 13.5-26.0 mm. Sardinia .................................................... C. hiostius n. comb .

— Pronotum with metallic shine, elytra dull; first segment of hind tarsi usually as long as the following two combined; pronotum, in males, with antero-lateral hornlike apophyses curved and inwardly convergent ( Fig. 1E ), the central one straightly anteriorly projected; pronotum, in females, sparsely punctate on disc, coarsely densely punctate on sides, with anterior angles subdenticulate and outwardly protruding ( Fig. 1H ). Blackish. Length 11.0-20.0 mm. Sardinia .......................................................... C. matutinalis n. comb .

Figures

FIG. 1. — A-C, heads; A, Chelotrupes hiostius (Gené, 1836) n. comb.; B, C. matutinalis (Baudi, 1870) n. comb.; C, C. momus (Olivier, 1789) n. comb.; D-F, pronotum of the male; D, C. hiostius n. comb.; E, C. matutinalis n. comb.; F, C. momus n. comb.; G-I, pronotum of the female; G, C. hiostius n. comb.; H, C. matutinalis n. comb.; I, C. momus n. comb.; J-L, elytra; J, C. hiostius n. comb.; K, C. matutinalis n. comb.; L, C. momus n. comb.