Polydictya pelengana sp. nov.

urn:lsid:zoobank.org:act: CD1E96F8-8487-4ED1-BC2F-820CC17B37CA

Figs 5, 7, 10

Polydictya crassa – Nagai & Porion 2004: 7 (notes), pl. 2 fig. 13 (habitus illustrated) [erroneous identification].

Diagnosis

(1) Tegmina dark olivaceous brown with small, whitish spots: 2–4 along claval suture, 4 along costal margin and 2 on disc of membrane (Fig. 5A); (2) hind wings without basal red patch (Fig. 5A); (3) frons slightly projecting anteriorly in dorsal view (Fig. 5C), yellow-brown (Fig. 5D); (4) anterior tibiae slightly laminate externally (Fig. 5 A–B); (5) abdomen black dorsally (Fig. 5A); (6) genital segments black.

Etymology

The species epithet refers to the type locality, Peleng Island.

Type material

Holotype

♂: [Coll. I.R.Sc.N.B., Indonesia, Peleng Isl., iii.2004, exchange S. Jakl, I.G.: 31.970] (RBINS).

Paratypes

1 ♂, 5 ♀♀: 1 ♂: same data as holotype (RBINS); 1 ♀: [Coll. I.R.Sc.N.B., Indonesia, Peleng Isl., ix.2012, gift from B. Kneubühler, I.G.: 32.427] (RBINS); 1 ♂: [Peleng, Apr. 2003] (MHNL); 1 ♂: [Peleng, 3.03, Coll. Alain Chaminade] (MNHL); 1 ♂: [Peleng, III.03, Coll. thierry PORION] [ Polydictya crassa ♂, Coll. thierry Porion] (MHNL); 1 ♂: [Peleng, III.03, Coll. thierry PORION] (MHNL); 1 ♂: [Peleng Isld, 3.03, Coll. thierry PORION] (MHNL). Note: “3.03” and “III.03” on the labels of the paratypes stand for March 2003.

Coordinates of type locality

Peleng Island: 1°24′S 123°10′E.

Description

MEASUREMENTS AND RATIOS. LT: ♂ (n = 5): 28.7 mm (27.2–30.0); ♀ (n = 1): 29.7 mm; LTg/BTg = 2.80; BV/LV = 4.57; LF/BF = 0.71.

HEAD. Pale yellow-brown (Fig. 5 C–D); vertex strongly curved and deeply grooved with lowest point in middle and with all margins carinate (Fig. 5C); frons slightly visible from above (Fig. 5C), strongly convex, smooth, subquadrate with sides projecting laterally basally and with impressed C-shaped groove along lateral margin, starting in front of eye (Fig. 5D); clypeus subtriangular, narrower and shorter than frons, black-brown (Fig. 5D); labium elongate, black-brown, surpassing hind coxae (Fig. 5B); antennae pale yellow-brown with scape cylindrical, slightly elongate and pedicel strongly bulbous (Fig. 5D, F).

THORAX. (Fig. 5C, F). Dark brown to black-brown; pronotum irregularly wrinkled with smooth longitudinal carina and 2 strongly impressed points on anterior half of disc; mesonotum with disc wrinkled and sides smooth; scutellum impressed basally, elevated apically and slightly transversely winkled; tegulae brown with apex pale yellow-brown.

TEGMINA. (Fig. 5 A–B, E). Dark brown to black-brown with olivaceous green hue on basal half, more conspicuous ventrally; veins and veinlets yellow-brown, maybe olivaceous green in living specimens; 3–4 small, yellow-white spots along costal margin, 2–4 along claval joint and 2 longitudinally aligned on disc near nodal line; costal and sutural margin subparallel; apex oblique with apico-sutural angle broadly rounded.

HIND WINGS. (Fig. 5 A–B). Dark brown to black-brown with a basal milky-white elongate patch along costal vein; broader than tegmina.

LEGS. (Fig. 5 A–B). Dark reddish brown to nearly black; anterior legs darker; tibiae I slightly foliaceous externally; tibiae II slender; tibiae III with 4–5 lateral and 7 apical spines.

ABDOMEN. (Fig. 5 A–B). Tergites black with membranous joints greenish; sternites brown; genital segments black-brown.

MALE GENITALIA. Pygofer, anal tube and gonostyli black-brown; pygofer higher than long, with posterior margin sinuate in lateral view (Fig. 10 A–B); anal tube elongate, 1.95 times longer than broad, broader at 3⁄5 of total length, strongly curved ventrally near base (Fig. 10 A–B); lateral margins sinuate (Fig. 10A) and apical margin excavate in dorsal view (Fig. 10C); gonostyli (Fig. 10A) elongate with posterior half broader and strong subbasal constriction in lateral view; strong tooth directed antero-ventrally at half length; apical margin rounded; phallic complex (Fig. 10 D–E) with endosomal process of aedeagus laminate, slightly concave externally and with ventral margin laterally projecting subbasally; dorsal margin rounded in lateral view and nearly smooth, showing few slightly marked teeth near base and near apex.

Distribution

Known from Peleng Island off Central Sulawesi (see map Fig. 7).