Bolivaritettix sanbaishanensis, Deng, Wei-An, Zheng, Zhe-Min & Wei, Shi-Zhen, 2010

Deng, Wei-An, Zheng, Zhe-Min & Wei, Shi-Zhen, 2010, A taxonomic study of the genus Bolivaritettix Günther (Orthoptera: Tetrigidae: Metrodorinae), Zootaxa 2423, pp. 44-54 : 52-53

Bolivaritettix sanbaishanensis sp.nov.

( Fig. 12 )

Diagnosis. Bolivaritettix sanbaishanensis sp.nov. is similar to Bolivaritettix yuanbaoshanensis Zheng et Jiang, 1995 , but differs in: antennae inserted below lower margin of eyes; lateral ocelli placed in between lower third of eyes; disc of pronotum slightly convexed between shoulders; disc of pronotum coarsely, with numerous small tubercles; width of midfemur narrower than width of visible part of tegmina. It appears similar to Bolivaritettix sikkinensis (Bolivar, 1909) , but differs from the latter by it midkeel of pronotum slightly convex before shoulders; lateral ocelli placed in between lower third of eyes; width of midfemur narrower than width of tegmina.

Description. Female. Size small, slender. Head not exserted above pronotal surface ( Fig. 2 b). Vertex 1.5 times wider than width of one eye, anterior margin of vertex straight, not protruding beyond eyes ( Fig. 12 c), median carina conspicuous. In profile, vertex and frontal ridge obtuse rounded together ( Fig. 12 b), slightly concave before lateral ocelli, frontal ridge roundly protruding between antennae, width of longitudinal furrow narrower than width of first segment of antennae. Antenna filiform, 14-segmented, length of a segment in middle about 6–7 times longer than its width, inserted below lower margin of eyes ( Fig. 12 d). Eyes globose; lateral ocelli placed in between lower third of eyes ( Fig. 12 d). Disc of pronotum coarsely, with numerous small tubercles, anterior margin of pronotum straight, midkeel of pronotum completed and slightly convex before shoulders in profile. Lateral keels of prozona parallel, humeral angle obtuse, with abbreviated carinae between shoulders. Hind process of pronotum narrow, long cone-shaped, hind process slightly surpassing apex of hind femora ( Fig. 12 a, b). Lateral lobes of pronotum produced outwards, end of posterior angles truncated ( Fig. 12 a), posterior margins of lateral lobes of pronotum with two concavities ( Fig. 12 b). Tegmina long oval, apex rounded. Wings reaching or slightly surpassing top of hind process of pronotum ( Fig. 12 b). Anterior and middle femora elongated, margins of middle femora straight ( Fig. 12 e), width of midfemur narrower than width of visible part of tegmina. Length of hind femur 3.2 times longer than wide, antegenicular acute and genicular denticles right angle. In dorsal view, 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, three pulvilli equal in length, apices of all pulvilli obtuse ( Fig. 12 f). Ovipositor narrow and long, length of upper valvulae 5 times its width, upper and lower valvulae with slender saw-like teeth. Length of subgenital plate equal to its width, posterior margin of subgenital plate with with three teeth ( Fig. 12 g).

Body dark brown.

Male. Smaller and narrower than female. Vertex 1.4–1.6 times wider than width of one eye. Width of midfemur equal to width of visible part of tegmina. Length of hind femur 3.0 times longer than wide. Subgenital plate brief cone-shaped, apex sharp ( Fig. 12 h). Other structures and coloration same as female.

Measurements. Length of body: 38.5– 9 mm, Ƥ 10.5–11 mm; length of pronotum: 310.5– 11 mm, Ƥ 11.5– 12mm; length of hind femur: 35.5– 6 mm, Ƥ 6–6.5 mm.

Type material. Holotype: female. P.R. CHINA, Jiangxi prov., Anyuan (Sanbaishan), 25.2°N, 115.6°E, 600m alt, 17. viii. 2009, collected by Wei-An DENG. Paratypes. Two male and four female, same data as for holotype. Material is deposited in the Institute of Zoology, Shaanxi Normal University, Xi’an, China.

Etymology. The new species was named after the type locality, Sanbaishan, Jiangxi, China.

Distribution. China (Jiangxi).

Figures

FIGURE 12. Bolivaritettix sanbaishanensis sp. nov. a) body of female, dorsal view; b) body of female, lateral view; c) head of female, dorsal view; d) head of female, frontal view; e) middle femur of female, lateral view; f) first and second posterior tarsal segments; g) subgentialplate of female, ventral view; h) subgential plate of male, lateral view.

FIGURE 1 – 10. 1: Body of Bolivaritettix brevipennis Deng, Zheng et Wei, dorsal view; 2: Body of Bolivaritettix javanicus (Bolivar), lateral view; 3: Body of Bolivaritettix brachynotus Zheng, lateral view; 4: Body of Bolivaritettix liuwanshanensis Deng, Zheng et Wei, lateral view; 5: Body of Bolivaritettix circocephaloisoides Zheng et Deng, dorsal view; 6: Body of Bolivaritettix microptera Zheng et Ou, dorsal view; 7: Head of Bolivaritettix javanicus (Bolivar), dorsal view; 8: Head of Bolivaritettix lativertex (Br, - W.), dorsal view; 9: Body of Bolivaritettix sikkinensis (Bolivar), lateral view; 10: Body of Bolivaritettix tubericarina Zheng et Jiang, lateral view.