Pseudonicsara (Cercana) digitata, Ingrisch, 2009

Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, Zootaxa 2185, pp. 1-122 : 51-52

Pseudonicsara (Cercana) digitata sp. n.

Figs. 28, 77, 122, 158–159, 197, 219–220, 249, 292, 335, 380–382, 419, map 4.

Holotype (male): Indonesia, Papua: Neth. New Guinea Exp., Star Range, Katem [5° 15' S, 140° 35' E], 200 m, 15.VI.1959, depository: Collectio Fer Willemse , Eygelshoven , Netherlands ( CW), later to be deposited in Naturalis, Leiden ( RMNH).

Paratype: Papua New Guinea: 1 male, Western Prov. , Lake Murray [7° 0' S, 141° 30' E], in camp, 19.XII.1972, P. Imlay ( CW) .

Diagnosis. The male cerci of P. digitata share with those of P. sinuata that they have one apico-internal process nearly in the prolongation of the cercus ( Fig. 197). P. digitata differs from the latter species by the apico-internal process of the cercus being broad, compressed, obtuse, with the internal surface concave ( Fig. 220); of the baso-internal processes the dorsal process is divided into a digitiform proximal and a band shaped distal branch, the latter with bilobate apex ( Figs. 159, 197); the ventral process is divided into three digitiform branches, all branches with a spinule at tip ( Fig. 249). The epiproct is widened apically ( Fig. 158). The apical parts of the titillators are oval with the margin faintly undulate ( Figs. 380–382). Differences to other species are outlined in the key.

Description. Fastigium verticis in front of eyes 0.8 mm, from base 1.2 mm; dorsal eye length 1.4 mm; greatest diameter of eye 1.6 mm; index fastigium verticis from base: eye length 0.9 ( Fig. 77). Face subrugose but with impressed dots shallow. Pronotum shining, slightly rugose in midline and along margins. Tegmen little surpassing hind knees, costal field gradually narrowing from base to apex. Prosternal spines much shorter than coxa. Mid femur rather strongly compressed. Femora with the following number of spines on ventral margins: fore femur 5–7 external, 6–7 internal; mid femur 2–7 external, 2 internal near base; hind femur 9 external, 2–5 minute internal in basal area.

Male. Stridulatory file slightly sinuate 1.8–2.1 mm long; teeth rather dense, at apex very dense and indistinct; with 103–112 teeth or 53.5–56.3 teeth per mm, in middle of file with 41.9–46.2 teeth per mm. Mirror pentagonal with rounded angles; apical margin oblique; 1.6 mm long, 1.3–1.4 mm wide; index length:width 1.1–1.2. Tenth abdominal tergite little enlarged, globular in middle, central and apical areas setose; apical margin broad-roundly excised in middle and obtusely projecting at both sides of excision ( Fig. 122). Epiproct long, rectangular with slightly concave lateral margins, widening towards apex; furrowed in midline; apex faintly convex ( Fig. 158). Paraproct with a digitate, setose projection. Cerci short and stout, apex terminating in an elongate-triangular projection which is bent dorsad, apex blunt and with a minute spinule on top; internal surface of cerci with several projections: in dorsal half of internal surface there is a compressed, twisted, narrow and elongate projection behind base which has the apex obtuse and a compressed but broad projection towards apex; the latter sinuately curved and with apex short-bilobate, both lobes obtuse but the dorsal one provided with a spinule on top; the broad projection fused near base with another internal projection that rises from the ventral area of the internal surface, is broad and compressed and spoon-shaped near base but otherwise divided into three narrow elongate projections which carry a minute spinule at tip, the most proximal one sinuately curved ( Figs. 159, 197, 219–220, 249). Subgenital plate with styli long and thin ( Fig. 292).

Titillators with basal parts twisted against central area and widened towards base; apical parts ovoid, connected with each other by membrane; surface pale brown with clinging hairs, granular margin rather regular, hyaline ( Figs. 335, 380–382, 419).

Female unknown.

Coloration. Rather uniformly medium brown (green when alive? remnants of green on femora). Face with or without a black transverse band on both sides of and along clypeo-frontal suture; mandibles wholly black or dark brown at base, black at apex.

Measurements (2 males): body 26–37; pronotum 7.0–7.2; tegmen 22–23; hind femur 14–15 mm.

Etymology. Named for the five finger-shaped projections of the male cercus.