Pseudonicsara (Cercana) sinuata, Ingrisch, 2009

Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, Zootaxa 2185, pp. 1-122 : 58-59

Pseudonicsara (Cercana) sinuata sp. n.

Figs. 81, 113, 151, 189, 201–202, 241, 264, 343, 378, 417, map 4.

Holotype (male): Indonesia, Papua: New Guinea Exp. K.N.A.G. 1939, Digitara [3° 40' S, 136° 28' E], midden X.1939, Mantri Hoeka, depository: Collectio Fer Willemse, Eygelshoven , Netherlands ( CW), later to be deposited in Naturalis , Leiden ( RMNH).

Diagnosis. The male cerci of P. sinuata share with those of P. digitata that they have one apico-internal process nearly in the prolongation of the cercus ( Fig. 189). P. sinuata differs from the latter species by the cercus being short and stout with the apico-internal process sinuate with apical spinule and having only one stout baso-internal process ( Figs. 201–202). The epiproct is circular, flat ( Fig. 151). The apical parts of the titillators are oval with the margin undulate ( Fig. 378). Differences to other species are outlined in the key.

Description. Fastigium verticis in front of eyes 0.9 mm, from base 1.3 mm; dorsal eye length 1.4 mm; greatest diameter of eye 1.5 mm; index fastigium verticis from base: eye length 0.9. Face subrugose, with impressed shallow dots. Pronotum shining. Tegmen little surpassing hind knees; gradually narrowing to apex. Prosternum with two small tubercles. Mesosternal lobes rounded. Fore tibia in cross-section triangular below tympana, but in apical third quadrangular with dorsal angles rounded. Femora with the following number of spines on ventral margins: fore femur 4 external, 5 internal; mid femur 4 external, 2–3 internal near base; hind femur 9 external, 7 internal (5 in basal area, 2 near apex).

Male. Stridulatory file sinuate, 2.2 mm long; teeth rather dense, at apex very narrow; with 95 teeth or 43.8 teeth per mm, in middle of file with 32.3 teeth per mm ( Fig. 81). Mirror pentagonal with rounded angles; apical margin oblique; 1.6 mm long, 1.6 mm wide; index length:width 1.0. Tenth abdominal tergite transverse but globular in middle, strongly setose in central and apical areas; apical margin roundly excised in middle and with a short, obtuse lobe on both sides of excision ( Fig. 113). Epiproct triangular, almost flat with a faint median furrow ( Fig. 151). Paraproct with projection thick and short, obtuse and setose. Cerci with one basointernal process of medium length, little constricted behind base, apex angular, obtuse, and one apico-internal process nearly in prolongation of cercus that is sinuate with apical spinule ( Figs. 189, 201–202, 241). Subgenital plate with styli about as long as excision ( Fig. 264).

Titillators with basal parts rather broad and slightly curved along longitudinal line; apical parts ovoid with apico-internal surface covered by clinging hairs; margin granular with irregular sinuate course ( Figs. 343, 378, 417).

Female unknown.

Coloration. Medium brown. Face with a transverse black band in dorsal area also encircling compound eyes; antennal scrobae and ventral margin of fastigium verticis also black; median ocellus light. Apex of mandibles black. Tegmen with little conspicuous brown spots in cells.

Measurements of male: body 28, pronotum 7, tegmen 21, hind femur 15 mm.

Etymology. Named for the sinuate male cercus.