Pseudonicsara (P.) concha, Ingrisch, 2009

Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, Zootaxa 2185, pp. 1-122 : 26-27

Pseudonicsara (P.) concha sp. n.

Figs. 72, 118, 154, 192, 247, 275, 314, 359–360, 401, map 2.

Holotype (male): Papua New Guinea, Eastern Highlands: New Guinea, NE, Moife (15 km NW of Okapa) [6° 38' S, 145° 33' E], 2100 m, 7–14.X.1959, T.C. Maa, depository: Bernice P. Bishop Museum, Honolulu, Hawaii, USA ( BPBM).

Diagnosis. The new species shares with P. clavus sp. n. that the apico-internal process of the male cercus is pointing nearly ventrad and provided with a dorsal crest or lamella at base ( Fig. 154). It differs by the process being very short, compressed triangular, with the free apical area shorter than the basal area with crest. Further differences are the wide apical excision of the male subgenital plate ( Fig. 275) and the shape of the apical parts of the titillators that are pyriform with the margin strongly undulate ( Figs. 359–360). Differences to other species are outlined in the key.

Description. Fastigium verticis in front of eyes 1.2 mm, from base 1.6 mm; dorsal eye length 1.7 mm; greatest diameter of eye 1.8 mm; index fastigium verticis from base: eye length 0.9. Face rugose but shining. Tegmen surpassing apices of hind femora; gradually narrowed behind basal widening. Femora with the following number of spines on ventral margins: fore femur 7–8 external, 5-6 internal; mid femur 6 external, 3 internal near base; hind femur 8 external, 1 minute internal near base.

Male. Stridulatory file sinuate, 2.7 mm long; teeth at apex very dense and indistinct; with 95 teeth or 35.3 teeth per mm, in middle of file with 25.8 teeth per mm ( Fig. 72). Mirror pentagonal with rounded angles; apical margin oblique; 2.0 mm long, 1.9 mm wide; index length:width = 1.1. Tenth abdominal tergite with apical margin wide roundly excised in middle, little projecting on both sides ( Fig. 118). Epiproct pyriform; deeply furrowed ( Fig. 154). Paraproct with conical, faintly concave projection. Cerci cylindrical, slightly curved, with three internal projections: two behind basal third, one at apex; the former standing one above the other ( Figs. 154, 192, 247). Dorso-internal projection small, obtuse, compressed; ventro-internal projection almost cylindrical with subtruncate apex; with a minute spinule at apex. Apico-internal projection compressed, twisted, rather short; with rounded dorso-apical and triangular ventro-apical angle. Cercus at apex proper with a short cone on top. Subgenital plate broad; apex roundly excised ( Fig. 275).

Titillators separate; basal parts rather broad, little twisted, simple; apical parts pear-shaped, rather narrow, only at base wider than central area of titillator, at apex narrower than central area; surface of apical parts densely covered with clinging hairs; apico-lateral margin concave, undulate and with small transverse lamellae, coarsely granular ( Figs. 314, 359–360, 401). Baso-lateral sclerite curved, irregular, little sclerotised.

Female unknown.

Coloration. Reddish brown, legs yellowish brown. Face with black band between eyes including scapus; with another black band along clypeo-frontal suture extended on genae; both connected by a vertical black band. Tegmen with dark cells and light veinlets.

Measurements of male: body 31; pronotum 7.8; tegmen 31; hind femur 18 mm.

Etymology. The name refers to the conchate apical tooth of the male cerci; noun in apposition.