Elimaea (Rhaebelimaea) quadrispina Liu

Liu, Chun-Xiang & Liu, Xian-Wei, 2011, Elimaea Stål (Orthoptera: Tettigoniidae: Phaneropterinae) and its relative from China, with description of twenty-three new species, Zootaxa 3020, pp. 1-48 : 22-23

Elimaea (Rhaebelimaea) quadrispina Liu C-X, sp. nov. (Plate 9e–k, 10h–l)

Holotype: male, China: Yunnan Prov.: Simao County, 1984. V.27–V.28, Coll. Zhou Yousheng, Yang Darong ( KIZAS).

Paratype: 5 males, same data as in holotype ( KIZAS).

Description: Holotype (male). Tegmen extending far beyond apex of hind femur; hind wing distinctly longer than tegmen; radius sector branching slightly before middle of tegmen, and bifurcate behind middle. Fore coxae unarmed. Fore femur with 7 interior and exterior ventral spines; mid femur with 15 exterior ventral spines; hind femur with 14 interior and 11 exterior ventral spines. Genicular lobes of each femur bispinose. Fore tibiae with 1 exterior dorsal spine over tympana; mid tibiae with 2 interior and 7 exterior dorsal spines; hind tibiae with about 70 interior and exterior dorsal spines.

Tenth abdominal tergum truncated (Plate 9h, 10h). Epiproct long quadriangular (Plate 9g, 10l). Cerci approximately columned, gradually incurved, abruptly acuminated at apex, and shaped into a brown spine (Plate 10k). Subgenital plate rather complex, split at basal 1/6 part into two lateral lobes, which initially divergent, abruptly contract and joining each other in middle of the subgenital plate, and then extending backwards; each lobe split at apical 1/6 part into two sharp spines, among which the interior spine reversely upcurved, and the exterior one perpendicularly upcurved (Plate 9h–k, 10h–j).

Color: Body yellowish green (maybe green at live). Compound eyes brown. Lateral corner of occiput with a brown spot. Pronotal disc brown. Anterior tibial tympana dorsally brown. Proximal corner of tegminal stridulatory apparatus with a dark brown spot. Tegminal anterior margin red brown, area between M and Cu vein, which approximates Cu vein, and area near posterior margin densely covered with brown dots; each cell between R and Rs veins with a brown spot. Apical spine of cerci and sharp apical spine of subgenital plate brown.

Female unknown.

Measurement of male (mm): length of body: 19.0–22.5; length of pronotum: 5.2–6.0; length of tegmen: 39.0– 42.0; largest width of male stridulatory area 3.0; length of male stridulatory vein: 2.5; largest width of dorsal area behind male stridulatory area: 1.8; width of tegmen: 6.5; length of hind wing: 44.0–47.5; length of fore femur: 7.0; length of mid femur: 10.5; length of hind femur: 24.5; length of epiproct: 2.0; length of cerci: 4.0; length of subgenital plate: 8.0.

Etymology: The name shows that this new species possesses special apical four spines of the male subgenital plate.

Discussion: This new species is distinguished form its congeners by the male abdominal apex, especially its special male subgenital plate.

Distribution: China: Yunnan Prov.

PLATE 10, a–c, Elimaea beibengensis sp. nov.; d–g, Elimaea brevifissa sp. nov.; h–l, Elimaea quadrispina sp. nov.. a, e, h, male abdominal apex, lateral view; b, i, male subgenital plate, ventral view; c, g, k, male cerci, dorsal view; d, stridulatory file on underside of left tegmen; f, l, male epiproct, dorsal view; j, male subgenital plate, apico-ventral view. (scale bar = 1mm)