Prosopogryllacris gamta, 2018

Ingrisch, Sigfrid, 2018, New taxa and records of Gryllacrididae (Orthoptera, Stenopelmatoidea) from South East Asia and New Guinea with a key to the genera, Zootaxa 4510 (1), pp. 1-278 : 83-84

publication ID 10.11646/zootaxa.4510.1.1

publication LSID


persistent identifier

treatment provided by


scientific name

Prosopogryllacris gamta

sp. nov.

Prosopogryllacris gamta View in CoL sp. nov.

Figs. 28 View FIGURE 28 H–L

Material examined. Holotype (female): Indonesia: Misool Islands , East Raja Ampat , River Gam upstream, Gamta village, 12–14 km NW, elev. 70–350 m (1°57'50''S, 130°11'9''E), 5.ii.2012, leg. D. Telnov (Erfurt NKME). GoogleMaps

Diagnosis. The new species is characterized by the pattern of hind wing coloration that is restricted to the marginal area and the brown color includes the cross veins but not the longitudinal veins and includes light oval spots around the secondary longitudinal veins ( Fig. 28H View FIGURE 28 ). This deviates from the normal situation in Eugryllacris where normally the cells are dark in middle and the cross-veins light, but it also does not agree with the situation in Gryllacris that has dark bands along the cross veins and the middle of the cells light. The abdominal appendages agree with the situation in Eugryllacris but would be of so far unique shape within that genus. The female subgenital plates terminates into long oval-triangular lobes little deviating from each other ( Figs. 28 View FIGURE 28 J–K). The female seventh abdominal sternite is strongly setose as the preceding sternites and terminates into a membranous beam-like projection with bilobate tip ( Fig. 28J View FIGURE 28 ). The color pattern of the hind wings of P. gamta sp. nov. resemble the situation in " Prosopogryllacris horvathi horvathi (Griffini, 1909) " but are more extended in the new species than in P. horvathi . Both species differ by the possession of spines on ventro-internal margin of hind femur in P. gamta said to absent in P. horvathi , but more important is the specific shape of the female seventh abdominal sternite that is prolonged from apical margin and divided into a ventral and a dorsal lobe, the ventral lobe has a slightly bifid tip and on underside a cone while the dorsal lobe is flat but little curved and fused with the surrounding membranous area while for P. horvathi the process of the seventh sternite is described as wide and long towards apex narrowing and rounded. The generic affiliation of the new species and of P. horvathi should be re-evaluated when males become available for study.

Description. Medium sized species. Head: Face ovoid, rather narrow; nearly smooth with scattered impressed dots and irregular wrinkles; fastigium verticis hardly wider than scapus, ocelli indistinct; fastigium frontis separated from fastigium verticis by a strong, straight suture; subocular furrows distinct but shallow ( Fig. 28I View FIGURE 28 ). Abdominal tergites two and three with>3, 6; 6, 10 stridulatory pegs.

Wings surpassing hind knees and reaching to about mid length of ovipositor ( Fig. 28H View FIGURE 28 ). Tegmen: Radius with two branches, both forked near tip; media anterior fused in basal area with radius; media posterior absent; cubitus anterior forks before mid-length into two veins, CuA1 and CuA2; cubitus posterior undivided, free throughout; with 4 anal veins.

Legs: Fore coxa with a spine at fore margin; fore and mid femora unarmed; fore and mid tibiae with 4 pairs of comparatively short ventral spines and 1 pair of smaller ventral spurs; hind femur with 7–9 external and 5 internal spines on ventral margins; hind tibia with spaced spines on both dorsal margins, ventral margins with one preapical spine each; with 3 apical spurs on both sides.

Coloration. General color uniformly brown with indistinct pattern. Face uniformly brown; only tips of mandibles black; compound eyes whitish. Tegmen yellowish semi-transparent, towards margins paler; veins and veinlets dark to light brown; hind wing semi-transparent white, veins dark to light brown; marginal area suffused with dark brown, the dark color is interrupted by oval light spot in the fields formed by the main veins and the cross veins.

Male unknown.

Female. Seventh abdominal sternite with a setose, at tip slightly bilobate projection covering base of subgenital plate. Subgenital plate wide at base and with distinctly concave lateral margins; with rather long, obtuse apical lobes, deviating from each other; with a very faint median carina ( Figs. 28 View FIGURE 28 J–K). Base of ovipositor normal. Ovipositor of medium length, distinctly but not strongly curved dorsad, margins slightly and gradually narrowing towards tip; dorsal margin with a slight expansion before tip ( Fig. 28L View FIGURE 28 ).

Measurements (1 female).—body w/wings: 28; body w/o wings: 19; pronotum: 5.5; tegmen: 20; tegmen width: 7.5; hind femur: 15; ovipositor: female 13.5 mm.

Etymology. The new species is named after the type locality; noun in apposition.


Naturkundemuseum Erfurt

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF