Pycnoscelus aurantius Hanitsch 1935

Pycnoscelus aurantius Hanitsch, 1935 Fig. 7 Pycnoscelus aurantius Hanitsch, 1935: 18; Bruijning 1947: 210; Roth 1998: 125. Pycnoscelis [sic] aurantia: Princis 1964: 275. Material examined. Malaysia • 1 male; Sabah, Mt. Trus Madi; 1121 m; 5 Oct. 2015; Gui-Qiang Huang leg. Diagnosis. General color dark orange, similar to P. semivitreus, but P. aurantius can be readily distinguished from P. semivitreus by its smaller right style and the apical part of sclerite L 2 D blunt without any process. Supplementary description of male. Tegmina is somewhat bicolored as P. semivitreus, from proximally orange to distally yellowish, with the boundary indistinct (Fig. 7 E). Male genitalia: right phallomere with distinct bristles, caudal part of sclerite R 1 T nearly rectangular, R 2 curved, R 3 forked, R 4 small; R 5 lies above R 2, irregular, prolonged (Fig. 7 H). The basal part of sclerite L 2 D strongly sclerotized with apical portion less sclerotized and nearly transparent; the apical part of sclerite L 2 D C-shaped, outer margin without any tooth; apical membrane less developed, covered with microtrichia (Fig. 7 I). Sclerite L 3 hook slender, inner curved margin with a tooth at apex; sclerite L 4 U divided into two parts (Fig. 7 J). Measurements (mm). Body length including tegmen: 21.9; pronotum length × width: 4.6 × 6.5; tegmen length: 19.8. Remarks. The specimen we examined is generally identical to the description of P. aurantius provided by Roth (1998). However, Roth (1998) examined the type of P. aurantius and found its left style present, whereas this structure is absent in the specimen we examined (Fig. 7 G). As only a single specimen is available in our study, it is difficult to determine whether the style is missing or naturally absent. More specimens will be needed in the future to clarify this question, and for now, we have tentatively identified the specimen as P. aurantius.