Pseudonicsara (P.) undulata, Ingrisch, 2009

Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, Zootaxa 2185, pp. 1-122 : 46-47

Pseudonicsara (P.) undulata sp. n.

Figs. 89, 109, 168, 260, 421–422, 457, 523, map 3.

Holotype (male): Indonesia, Papua: Neth. Ind.-Amer. New Guinea Exped., Bernhard Camp [3° 29' S, 139° 13' E], 50m, 28.IX.1938, lg. J. Olthof, labelled " Pseudonicsara ? undulata sp. n. ", depository: Museum Zoologicum Bogoriense, Cibinong, Indonesia ( MBBJ).

Other material studied: Indonesia, Papua: 1 male (paratype), same locality as holotype, VII.1938, lg. J. Olthof ( MBBJ); 1 female (same species?), North New Guinea, Prauwenbivak [3° 15' S, 138° 35' E], IX.1920, W.C.v.Heurn ( MBBJ) .

Diagnosis. P. undulata comes close to P. pallidifrons Br. and P. excisa sp. n. Males differ from P. pallidifrons by the cerci that have the lobes of the apico-internal process of equal length and the baso-internal process shorter, and by the epiproct that is elongate with the apex truncate ( Fig. 109). The apical parts of the titillators are similar to those of P. pallidifrons but less widened and projecting ridge more apicad ( Figs. 421– 422). From P. excisa , males differ by the shape of the titillators, by the apico-internal process of the cercus that is inserted horizontally, and by the epiproct ( Fig. 109). Females differ from both and other species of the genus by the shape of the subgenital plate that is divided in midline by a membranous area, with a faint median fold; the apices of the resulting lobes are obliquely concave; circular, grooved lateral sclerites lying on both sides of the subgenital plate ( Figs. 457, 523). Differences to other species are outlined in the key.

Description. Fastigium verticis in front of eyes 1.2 mm, from base 1.7 mm; dorsal eye length 1.8 mm; index fastigium verticis from base: eye length 0.9. Face shining but with ridges and impressed dots. Antennae strongly setose. Tegmen surpassing hind knees, broadest in basal third, behind middle gradually constricted and with narrow apical part. Femora with the following number of spines on ventral margins: fore femur 7–8 external, 6 internal; mid femur 6 external, 2–3 internal near base; hind femur 9–13 external, 2–7 internal near base.

Male. Stridulatory file with circa 106 teeth, file with a winding near base and a distinct step near apex, behind step teeth very small ( Fig. 89). Tenth tergite with apical margin roundly excised in middle, faintly lobate on both sides ( Fig. 109). Epiproct elongate, with a sublateral carina on each side which becomes bulbous at apex where both carinae are fusing ( Fig. 109). Cerci long-cylindrical, slightly curved, with a small finger-shaped, internal process in circa half of cercus length, which has the apex obtuse and provided with a minute attached tooth; with a dorso-apical swelling, and with a depressed ventro-apical, internal process, which has a forked, bi-angled apex; on left cercus only with a minute spinule between both angles ( Fig. 168). Subgenital plate longer than wide; apex deep roundly excised ( Fig. 260).

Titillators separate; basal parts stout, rounded-lobate; apical parts oval with internal surface dark, densely covered with clinging hairs; margin granular, undulate and with a transverse carinae circa between dorsal and apical part of rim ( Figs. 421–422).

Female [same species?, previously stored in alcohol]. Tenth tergite furrowed in midline; apex excised in middle. Subgenital plate fissing to base, resulting in two strongly curved [artefact?] plates with roundedtriangular apex; on each side with a small but deep groove with membranous external and sclerotised internal surface ( Figs. 457, 523).

Coloration. Brown (partly green when alive?). Face concolorous, with a broad, transverse, blackish band with irregular margins around clypeo-frontal suture; apical area of mandibles black; antennal scrobae, area between them, ventral side of scapus and base of pedicellus blackish brown, contrasting with yellow median ocellus. Tegmen dark brown with SC, M and part of the transverse veinlets yellowish brown. Hind knees indistinctly darkened. Spines dark.

Measurements: body male 32–37, female 32; pronotum male 9.0–9.3, female 8.7; tegmen male 30–31.5, female 31; hind femur male 21–21.5, female 21; ovipositor 21 mm.

Etymology. The name refers to the undulating margin of the male titillators.