Pteroptyx sayangia, Ballantyne & Lambkin & Boontop & Jusoh, 2015

Ballantyne, Lesley, Lambkin, Christine L., Boontop, Yuvarin & Jusoh, Wan F. A., 2015, Revisional studies on the Luciolinae fireflies of Asia (Coleoptera: Lampyridae): 1. The genus Pyrophanes Olivier with two new species. 2. Four new species of Pteroptyx Olivier and 3. A new genus Inflata Boontop, with redescription of Luciola indica (Motsch.) as Inflata indica comb. nov., Zootaxa 3959 (1), pp. 1-84 : 43

publication ID	https://doi.org/10.11646/zootaxa.3959.1.1
publication LSID	lsid:zoobank.org:pub:F4FE2831-8403-4F56-A47B-E9C75CD368A1
DOI	https://doi.org/10.5281/zenodo.14951491
persistent identifier	https://treatment.plazi.org/id/476CB224-E648-1228-FF09-A04EFAF6FBCC
treatment provided by	Plazi
scientific name	Pteroptyx sayangia
status	sp. nov.

Treatment

Pteroptyx sayangia View in CoL sp. nov.

(Figs. 93−100)

Type. Holotype male. MALAYSIA. Peninsula Buyang Sayang I. Polunin, male ( ANIC).

Paratypes (12). Same locality as holotype, 10 males, 2 females ( ANIC) .

Diagnosis. One of three Pteroptyx having entire LO in V7 and without deflexed elytral apices; pale yellowish dorsally with black tipped elytra; most obviously distinguished from Pt. galbina sp. nov. and Pt. surabayia sp. nov. by the parallel sided pronotum which has angulate anterolateral and posterolateral corners.

Male. 4.5−5.2 mm long. Colour (Figs. 93, 94): pale yellowish, elytra semitransparent (specimens are preserved in ethanol), with apical brown area; head antennae and palpi dark reddish brown; ventral surface of thorax and abdomen yellow except for LO creamy white; all legs mainly yellow with dark markings as follows: legs 1 and 2 with light brown tibiae and tarsi; legs 3 with light brown tarsi only; all tergites yellow. Pronotum: anterolateral corners angulate obtuse; lateral margins approximately subparallel-sided with slight convergence just behind the anterolateral corners and just anterior to the posterolateral corners (scored as A=B=C); posterolateral corners angulate approx 90°; PN W/GHW 1.4̄1.5. Elytron: deflexed apex absent. Head: moderately exposed in front of pronotum; apical labial palpomere broadly triangular in outline (L=W) with inner margin entire; FS 1 longer than pedicel; no FS laterally expanded. Legs (Fig. 94): MFC present. Abdomen (Figs. 94−96): posterior margins of V3, V4 not recurved; LO in V7 entire, occupying more than half the visible area of V7, reaching sides, into MPP but not into PLP; MPP wide, longer and wider than rounded PLP, and apex with a shallow medial emargination; T8 with well defined lateral ridges; area to the side of ridges not bearing spines or hairs; flanges absent. Aedeagus (Figs. 97̄99): LL separated by less than half their dorsal length; b/a 0.9.

Etymology. The species is named for its type locality; sayangia is considered to be a noun in apposition.