Diaphanogryllacris brevispina Du, Bian & Shi, 2016a

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 : 166-167

Diaphanogryllacris brevispina Du, Bian & Shi, 2016a

Figs. 53E , 59 F–G

Material examined. China: Yunnan, South Yunnan (Xishuangbanna), 37 km NW Jinghong, Guo Ma Shan (NNNR), elev. 1080 m (22°17.91'N, 100°38.85'E), 26.v.2008, leg. A. Weigel— 1 female (Erfurt NKME) .

Additional Description. Medium sized species. Head: Face oval; forehead nearly smooth with fine riffles on lower part of frons and on clypeus; fastigium verticis wider than scapus; ocelli indistinct. Abdominal tergites two and three with stridulatory pegs.

Wings distinctly surpassing abdomen ( Fig. 53E ). Tegmen: Radius with two branches, both forked near tip; media anterior free, in subbasal area closely approached to radius; cubitus anterior at base with a single branch that forks into two veins, the anterior branch makes a curvature where it receives a connecting branch from MA and shortly after divides again into two parallel branches, MP and CuA1; cubitus posterior undivided, free throughout; with 4 anal veins, last two with common stem.

Legs: Fore coxa with a spine at fore margin; fore and mid femora unarmed; fore and mid tibiae with four pairs of large ventral spines and one pair of smaller ventral spurs; hind femur with 6 external and 5–6 internal spines on ventral margins; hind tibia with spaced spines on both dorsal margins, ventral margins with one pre-apical spine; with 3 apical spurs on both sides.

Coloration. General color greyish to yellowish brown with dark marks; vertex and pronotum as described by Du et al. (2016). Face uniformly light with a medium brown band below compound eyes and two weak spots on upper part of fastigium verticis; eyes black. Tegmen semi-transparent white with medium to dark brown veins and veinlets; hind wing semi-transparent white with medium to dark brown veins and veinlets.

Female. Seventh abdominal sternite slightly furrowed in midline, apical margin bilobate. Subgenital plate wider than long, with converging lateral margins, apex broadly truncate ( Fig. 59F ). Ovipositor straight; tip with narrowed margins but obtuse ( Fig. 59G ).

Measurements (1 female).—body w/wings: 36; body w/o wings: 21; pronotum: 5; tegmen: 31; hind femur: 15; tegmen width: 9.5; ovipositor: 22 mm.

Discussion. The species is so far only known from South Yunnan. It is sufficiently described in Du et al. (2016). The female is characterized by the seventh abdominal sternite being sclerotised with slightly bilobate apex while the subgenital plate is membranous with subtruncate tip.

Figures

FIGURE 53. Genus Diaphanogryllacris, habitus dorsal view: A–B, D. annamita tenera ssp. nov. male holotype (A) and female paratype (B); C, D. aequalis (Walker, 1859) [lectotype of G. annulata Brunner, 1888 BrW16.117] male; D, D. recta? female from Cham Chu; E, D. brevispina Du et al., 2016 female; F, D. laeta (Walker, 1869) [holotype of G. chinensis Brunner, 1888 BrW14.463] male; G, D. sinuata sp. nov. male holotype; H, D. recta sp. nov. male holotype; I, D. opulenta sp. nov. male holotype. Scales 10 mm.

FIGURE 59. Genus Diaphanogryllacris: A–B, D. annamita tenera ssp. nov.; C–D, D. sinuata sp. nov.; E, D. sp. specimen from Ban Om Khut; F–G, D. brevispina Du et al., 2016; H–I, D. normalis Gorochov & Wozn., 1999; J–K, D. recta sp. nov.; L, D. panitvongi Gorochov et al., 2015 from Na Haeo; M–N, D. recta? from Cham Chu; O, D. panitvongi Gorochov et al., 2015 from Con Son Island.—Ventral view of female abdominal apex with seventh sternite and subgenital plate (A, C, E, F, H, J, L, M, O), female habitus in lateral view (D, K) and ovipositor (B, G, I, N). Scales 10 mm.