Dilophotes anthracinus, Bic, Vlastislav, 2002

Bic, Vlastislav, 2002, Review of the genus Dilophotes Waterhouse (Coleoptera: Lycidae) of the Palaearctic Region and Indochina, Zootaxa 59, pp. 1-26 : 18-19

Dilophotes anthracinus sp. n.

Type material. Holotype, male, " Laos, 15 km N Louang Namtha, 750 m, 21.07°N / 101.21°E, 13. ­ 24. 5. 1997, E. Jendek & O. Šauša leg." ( LMBC). Paratype: 1 male, same locality data, ( LMBC).

Diagnosis. Dilophotes anthracinus sp. n. has flabellate male antennae and is the only Dilophotes species in the studied area with a concolourous black pronotum and elytra. In addition, the species has very short phallus and mostly membranous simple internal sac ( Fig. 22 ). The closest species is D. lizipingensis sp. n. with much more slender phallus ( Fig. 23 ), and red parts on pronotum and elytra.

Description of holotype. Body medium­sized, slender, black, pronotum, scutellum and elytra almost black with light pubescence. Eyes small, interocular distance 1.33 times maximum eye diameter. Antennae flabellate, flabellae of middle antennomeres three times longer than each antenomere. Pronotum 1.57 times wider than long. Frontal margins widely rounded, frontal angles distinct, lateral margins slightly concave, posterior angles moderately projected. Pronotal disc with frontal longitudinal costa reaching middle of disc, then inconspicuous. Disc surface black, shiny, with light pubescence. Elytra long, slender, flat, each elytron with three longitudinal costae. Costa 1 weak in apical part, costa 2 strong. Male genitalia with short phallus and partly membranous, simple internal sac ( Fig. 22 ).

Measurements. BL 5.5 mm, WH 1.32 mm, PL 0.77 mm, PW 1.21 mm, Ediam 0.36 mm, Edist 0.48 mm.

Distribution. Dilophotes anthracinus sp. n. is known only from the type locality in northernmost Laos.

Etymology. The specific epithet refers to the black colouration of the pronotum and elytra.

Figures

FIGURES 14 ­ 23: 14 ­ 23: Male and female genitalia: 14: Dilophotes laosensis sp. n.; 15: D. sausai sp. n.; 16: D. bolavensis sp. n.; 17: D. jendeki sp. n.; 18: D. moxiensis sp. n., ar ­ apical ring; 19: D. moxiensis sp. n.; 20: D. pacholatkoi sp. n.; 21: D. pacholatkoi sp. n.; 22: D. anthracinus sp. n.; 23: D. lizipingensis sp. n.