Bioacoustics of Pseudonicsara (Cercana) stridulans

Description. Fastigium verticis in front of eyes 0.8 mm , from base 1.2 mm ; dorsal eye length 1.3 mm ; greatest diameter of eye 1.5 mm ; index fastigium verticis from base: eye length 0.9. Fastigium verticis strongly compressed; median ocellus projecting. Face rugose ( Fig. 25 ). Tegmen very little surpassing hind knees, costal field broad in basal two thirds, suddenly narrowed in apical third; dorsal field also considerably widened except in apical third ( Fig. 5 ). Prosternal spine much shorter than coxa. Pro- and mid femur strongly compressed and mid femur also elongate. Femora with the following number of spines on ventral margins: fore femur 0–3 minute external, 2–5 minute internal; mid femur 4–5 external, 0–1 internal; hind femur 5–8 external, no internal. Male ( Fig. 5 ). Stridulatory area of tegmen widened and prolonged. Stridulatory file sinuate, 1.9 mm long; teeth rather large, only at very apex narrow; with 66 teeth (of which 52 are large teeth) or 34.6 teeth per mm, in middle of file with 29.0 teeth per mm ( Fig. 76 ). Mirror about circular except for straight fore margin; apical margin rounded; 1.7 mm long, 1.7 mm wide; index length:width 1.0. Tenth abdominal tergite transverse but slightly globular in middle ( Fig. 124 ); central and apical areas setose; apical margin roundly excised in middle and tergite somewhat membranous in front of excision, with short obtuse lobes on both sides of excision with apices curved ventrad ( Fig. 217 ). Epiproct semicircular with a shallow furrow in midline ( Fig. 157 ). Projection of paraproct compressed (collapsed?), obtuse. Cerci short cylindrical, slightly curved; internal surface concave ( Fig. 217 ); apex strongly curved mediad and divided into two triangular lobes: dorsal lobe with obtuse apex, ventral lobe with a spine at tip; ventro-internal surface just in front of apical lobes with a long, narrow, compressed and slightly sinuate projection with a spinule at tip ( Figs. 157 , 251 ). Subgenital plate with styli long and stout, of almost half the length of the subgenital plate ( Fig. 290 ). Titillators with basal parts broad, longitudinally curved; apical parts ovoid, rather narrow, internal surface dark with clinging hairs; margin granular, hyaline, with a small apico-lateral projection with irregular margin ( Figs. 333 , 383–384 , 416 ). Female. Tenth abdominal tergite transverse, apex triangularly excised in middle. Subgenital plate with a strong median carina; surface with a large groove at each side of carina; lateral margins extended dorsad and slightly projecting apicad, on lateral surface with a round pit; apex divided into two triangular lobes ( Figs. 466 , 509 , 532 ). Coloration. Uniformly ochreous brown (discoloured and partly green when alive?). Face reddish brown in ventral area, clypeus and mandibles also reddish, tip of mandibles black. Tegmen brown with light veinlets but pattern little conspicuous. Measurements ( 2 males , 2 females ): body male 26–27, female 29–30; pronotum male 6.7–6.8, female 6.3–6.5; tegmen male 22–22, female 22–23.5; hind femur male 14–14.5, female 14.5–16; ovipositor 14.5–15 mm .