Pseudonicsara (P.) bitriangulata, Ingrisch, 2009

Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, Zootaxa 2185, pp. 1-122 : 21

Pseudonicsara (P.) bitriangulata sp. n.

Figs. 88, 121, 185–186, 239, 273, 423–424, 469–470, map 3.

Holotype (male): Indonesia, Papua: North New Guinea Exped., Mamberamo, Alb-Bivak [Albatros Bivak 2° 17' S, 138° 01' E], V.1926, W. Docters v. Leeuwen, labelled: " Pseudonicsara ? bitriangulata sp. n. ", depository: Museum Zoologicum Bogoriense, Cibinong, Indonesia ( MBBJ).

Paratypes: 2 females, same data as holotype ( MBBJ) .

Diagnosis. Males of the new species differ from other species of Pseudonicsara s. str. by the deep excision of the tenth abdominal tergite ( Fig. 121) and the characteristic shape of the cerci, which have a triangular ventral apico-internal process, a dorsal apico-internal process only indicated by a short cone, and two baso-internal processes, the dorsal process compressed triangular, the ventral elongate conical ( Figs. 185– 186, 239). Females are characterised by the subgenital plate that is completely divided in midline into two angular plates ( Figs. 469–470).

Description. Fastigium verticis in front of eyes 1,12 mm, from base 1,63 mm; dorsal eye length 1,7 mm; index fastigium verticis from base: eye length 0,96. Face rugose. Tegmen rather narrow, surpassing hind knees. Femora with the following number of spines on ventral margins: fore femur 7–8 external, 6 internal; mid femur 6 external, 3 internal near base; hind femur 8–11 external, 4–7 internal near base.

Male. Stridulatory file with circa 123 teeth ( Fig. 88). Tenth tergite with apex fissing in midline to nearly base ( Fig. 121). Epiproct long with parallel lateral margins and convex apex, dorsally furrowed ( Fig. 121). Cerci narrow-cylindrical, slightly curved with three internal processes: two of them compressed and circa triangular, one about in middle and one just before apex of cercus, the latter with an angular fold at base; third process finger-shaped, inserted ventro-apical of first projection ( Figs. 185–186, 239). Subgenital plate with styli very thin, inserted on ventral surface ( Fig. 273).

Titillators with basal parts fused and hyaline [because freshly moulted?]; apical parts free [not fully sclerotised by the time of collecting], circa ovoid, surface covered with clinging hairs, dark in centre, pale towards margins; margin coarsely granular with a transverse crest near apex ( Figs. 423–424).

Female. Subgenital plate with central area membranous and an angular, sclerotised plate at each side with concavely depressed surface and broad bulging margin ( Figs. 469–470).

Coloration. Brown (partly green when alive?). Face yellowish-brown, with or without an inverse Yshaped green band from fastigium frontis to clypeo-frontal suture; area around clypeo-frontal suture with a large black spot; labrum yellow; mandibles dark brown and black towards apex; antennal scrobae and area below and between them and ventral surfaces of scapus and pedicellus dark brown, median ocellus yellow. Pronotum brown with pale spots, in 1 male with a green band at anterior and ventral margins. Femora brown (partly green when alive?), darkened at knees; tibiae and tarsi darkened or not; spines dark brown. Tegmen dark brown with veins (except radius) and part of transverse veinlets yellow. Antennae medium brown.

Measurements (1 male, 2 females): body male 30, female 29–32; pronotum male 8.5, female 9.0; tegmen male 31, female 31–32; hind femur male 20, female 21; ovipositor 20–21.

Etymology. Named for the male cerci carrying two compressed triangular processes.