Austrohancockia tuberfemora, Deng, Weian, Zheng, Zhemin & Wei, Shizhen, 2008

Deng, Weian, Zheng, Zhemin & Wei, Shizhen, 2008, A taxonomic study of the genus Austrohancockia Günther (Orthoptera: Tetrigoidea: Tetrigidae), Zootaxa 1896, pp. 63-68 : 65-68

Austrohancockia tuberfemora sp. nov. ( Fig. 7 )

Diagnosis: Austrohancockia tuberfemora sp. nov. is similar to A. guangxiensis Zheng et Jiang, 1998 , but differs in vertex and frontal ridge forming a right-angle; midkeel of pronotum interrupted, not conspicuous; pronotum reaching the knee of hind femur; width of fore femora equal to the width of middle femora; lower margins of fore and middle femora with one big teeth; third pulvillus of first segment of hind tarsi longer than first and second, apices of first and second sharp, apices of third obtuse.

Description: Male: Size small, stout. Width of vertex 2.3 times the width of an eye vertex, anterior margin of vertex straight, without protruding beyond eyes, median carina conspicuous ( Fig. 7 a). In profile, vertex and frontal ridge forming a right-angle, frontal ridge not visible before eyes and protruding arching between antennae ( Fig. 7 b). Frontal costa widely forked between the ocelli, the rami strongly divergent ( Fig. 7 c). Antenna filiform, 14-segmented, length of a segment in middle about 6–7 times longer than width, inserted below lower margin of eyes ( Fig. 7 b, c). Eyes globose. Lateral ocelli placed on between lower of anterior margins of eyes ( Fig. 7 b, c). Pronotum granulose, rough with irregular longitudinal tubercles and rugosity ( Fig. 7 b). Anterior margin of pronotum straight, midkeel of pronotum elevated and lamellar before shoulders in profile ( Fig. 7 b), upper margin of pronotum near the anterior margin concaved, midkeel of pronotum interrupted, not conspicuous ( Fig. 7 b). Lateral keels of prozona parallel, humeral angle arcuate ( Fig. 7 a). Pronotum short, reaching the knee of hind femur, apex of hind pronotal process concave ( Fig. 7 a). Posterior angles of lateral lobes produced outwards, end of posterior angles truncate ( Fig. 7 a), posterior margins of lateral lobes of pronotum with one concavity ( Fig. 7 b). Tegmina and hind wings absent. Lower margins of fore and middle femora with one large tooth ( Fig. 7 b), width of fore femora equal to the width of middle femora. Hind femur 2.2 times longer than wide, with 2 tubercules on outside ( Fig. 7 b), midkeel of upper side with 2 teeth, antegenicular and genicular denticles long-triangular. Outer side of hind tibia with 6–7 spines, inner side with 4–5 spines. Length of first segment of hind tarsi longer than third, third pulvillus longer than first and second, apices of first and second sharp, apices of third obtuse ( Fig. 7 e). Subgenital plate brief cone-shaped, apex sharp ( Fig. 7 d).

Body dark brown. Fore and middle femora and tibia each with two distinct dark transverse spots. Hind femur dark brown. Hind tibia black, with light ring in the base and middle.

Female: Body size larger than male, feature of structure similar to male. Ovipositor narrow and long, length of upper valvulae 3 times its width, upper and lower valvulae with slender saw-like teeth. Length of subgenital plate equal to its width, middle of posterior margin of subgenital plate with a triangular convex.

Measurements: Length of body: ɗ 9.5–10 mm; Ψ 11.5–12.0 mm, length of pronotum: ɗ 7.5–8.0 mm; Ψ 10.0– 10.5 mm; length of hind femur: ɗ 4.5–5.2 mm; Ψ 5.5–6.0 mm.

Holotype ɗ. P.R. CHINA, Guizhou prov., Libo(Maolan), 25.4N, 107.9E, 600m alt, 2.v.2008, collected by Wei-An DENG. Paratypes. Four ɗ and two Ψ, Same data as holotype. Material is deposited in the Institute of Zoology, Shaanxi Normal University, Xi’an, China.

Etymology. This new species name is derived from the Latin tuber and femora; meaning hind femur with 2 tubercules on outside.

Distribution: China (Guizhou).

Figures

FIGURE 7. Austrohancockia tuberfemora sp. nov. a) body of male, dorsal view; b) body of male, lateral view; c) head of male, frontal view; d) male apex of abdomen, lateral view; e) first and second posterior tarsal segments (enlargement bar: a, b = 1 mm; c, d, e, f = 0.5 mm).