Pycnoscelus semivitreus Princis 1967

Pycnoscelus semivitreus Princis, 1967 Fig. 6 Pycnoscelus semivitreus Princis, 1967: 148; Princis 1971: 1141; Roth 1998: 112. Material examined. Malaysia • 1 male; Borneo, Mt. Trus Madi, Jungle Girl Camp; 2–5 Oct. 2015; Ye-Jie Lin leg. • 1 male; Borneo, Mt. Trus Madi, Jungle Girl Camp; 3 May 2023; Cai-Xia Yuan leg. Diagnosis. This species can be easily distinguished from all its congeners by its huge right style, which extends to the left posterolateral angle of subgenital plate (Fig. 6 G). Supplementary description of male. Male genitalia: right phallomere with caudal part of sclerite R 1 T irregular, inner margin produced at middle; R 2 nearly straight, R 3 forked, R 4 plate-like; R 5 elongated, lying above R 2 (Fig. 6 H). Apical part of sclerite L 2 D elongated, the right side with several sharp teeth; apical membrane well developed, covered with microtrichia (Fig. 6 I, J). Sclerite L 3 hook subquadrate apically, inner margin with a tooth at apex; sclerite L 4 U divided into two parts (Fig. 6 K). Measurements (mm). Body length including tegmen: 20.7; pronotum length × width: 4.7 × 6.2; tegmen length: 17.0.