Pseudonicsara (P.) karimui, Ingrisch, 2009

Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, Zootaxa 2185, pp. 1-122 : 32-33

Pseudonicsara (P.) karimui sp. n.

Figs. 66, 103, 141, 179, 213, 236, 272, 315, 362–364, 403, 445, 507, map 2.

Holotype (male): Papua New Guinea, Chimbu Province: N.E. New Guinea, Karimui [6° 30' S, 144° 49' E], South of Goroka , 1000 m, 6.VI.1961, J.L. & M. Gressitt, depository: Bernice P. Bishop Museum, Honolulu, Hawaii, USA ( BPBM).

Paratypes: Papua New Guinea: 1 male, 2 females, same locality as holotype, 5.VI.1961 ( BPBM) .

Diagnosis. The new species shares with P.concha and P. clavus that the male cerci have two rather small baso-internal processes standing upon each other and the dorsal process horizontally inserted, a single apicointernal process, and the tip of the cercus without a dorsal cone ( Figs. 179, 213). It differs by the apico-internal process of the cercus being without a dorsal crest ( Fig. 141), the subgenital plate being longer than wide ( Fig. 272), and especially by the apical parts of the titillators, which are long oval with the margins strongly undulate ( Figs. 362–364). The male cerci are most similar to those of P. finister , but more curved, the basointernal processes distinctly smaller and the dorsal process horizontally inserted. It also differs by the subgenital plate being longer than wide instead of opposite and quite different shapes of titillators. The female subgenital plate is characterised by the wide but hardly grooved membranous area in midline, thus appearing as an entire plate; the lobes are short, obtuse ( Figs. 445, 507). Differences to other species are outlined in the key.

Description. Fastigium verticis in front of eyes 1.0 mm, from base 1.3–1.4 mm; dorsal eye length 1.6 mm; greatest diameter of eye 1.7 mm; index fastigium verticis from base: eye length 0.8–0.9. 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 6–8 external, 6 internal; mid femur 5–7 external, 3 internal near base; hind femur 8–11 external, 2–4 minute internal near base.

Male. Stridulatory file sinuate, 2.3 mm long; teeth at apex very dense and indistinct; with 84 teeth or 35.8 teeth per mm, in middle of file with 28.6 teeth per mm ( Fig. 66). Mirror pentagonal with rounded angles; fore margin straight, hind margin very oblique; 1.7–1.8 mm long 1.4 mm wide; index length:width 1.2. Tenth abdominal tergite with apical margin shallow roundly excised in middle, little projecting on both sides ( Fig. 103). Epiproct long triangular, deeply furrowed ( Fig. 103). Paraproct with compressed projection. Cerci cylindrical, slightly curved, with three internal projections: two behind basal third, one at apex ( Figs. 141, 179, 213, 236). Dorso-internal projection compressed, obtusely rounded; ventro-internal projection small, digitiform; internal margin behind projections laminar, expanded. Apico-internal projection long and narrow, with spinule at tip. Subgenital plate with apical area rather wide, shallow roundly excised ( Fig. 272).

Titillators separate; basal parts rather broad, little twisted; becoming moderately narrow towards end; apical parts long-triangular with rounded angles, rather narrow ( Figs. 315, 362–364, 403). Surface of apical parts densely covered with clinging hairs; apico-lateral margin undulate and with small transverse carinae, coarsely granular, almost hyaline. Baso-lateral sclerite curved with quadrangular hyaline appendage. Apicolateral sclerites oval, hyaline, little distinct.

Female. Tenth abdominal tergite furrowed in midline. Subgenital plate divided in midline by membranous area; resulting lateral plates obtuse; internal margin concave, external convex ( Figs. 445, 507).

Coloration. 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. Pronotum dark brown; disc with a light spot behind fore margin; paranota with ventral margin yellowish brown. Tegmen with dark cells and light veinlets. Fore tibia darkened at tympana; fore margin black.

Measurements (2 males, 2 females): body male 27–30, female 28–29; pronotum male 7.5–7.7, female 7.2–7.5; tegmen male 27.0–27.5, female 28–29; hind femur male 17.0, female 18.5–19.0; antenna male 80, female 80; ovipositor female 18.5–19.0 mm.

Etymology. Named after the type locality; noun in apposition.