Elimaea (Rhaebelimaea) brachycerciata 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 : 36-37

Elimaea (Rhaebelimaea) brachycerciata Liu C-X, sp. nov. (Plate 13a, 19a–e, 20a–f)

Holotype: male (No. 14125527), China: Guangxi Prov.: Longan, Longhushan Mt., 1995. VIII.29–IX.1, Coll. Liu Xianwei, Jin Xingbao, Zhang Weinian ( MSIE).

Description: Holotype (male). Tegmen surpassing apex of hind femur; hind wings distinctly longer than tegmen; radius sector branching near middle of tegmen, and emitting out 2 parallel branches near apex. Fore coxae unarmed. Fore femur with 5 interior ventral spines; mid femur with 14 interior ventral spines; hind femur with 9 interior ventral spines. Genicular lobes of each femur bispinose. Fore tibiae with 3 interior dorsal spines; mid tibiae with 9 exterior dorsal spines; hind tibiae with 32 large dorsal spines on both margins, and with 0–5 small spines between two large spines.

Stridulatory file with circa 84 stridulatory teeth, which are gradually becoming larger mediad (Plate 12g). Epiproct deflexed, long triangular, with sharp rounded apex (Plate 19b). Cerci short, not extending up to apex of subgenital plate, conial, distinctly incurved, with a curved roboust spine at apex (Plate 19c, 20d). Subgenital plate of moderate length, curved backward in lateral view; basal margin widest, then abruptly narrowed to the middle; sharply triangularly excised at apical 1/5 part, into two subparallel lateral lobes (Plate 19d, 20e). Phallus with a pair of conchate sclerites, internal margin with numerous small brown teeth (Plate 20e).

Color: Body yellowish green (probably green in life). Compound eyes light brown. Antennal scape and pedicel with black exterior margin and grey interior margin, and flagellum black. Lateral margins of occiput and pronotal disc densely covered with numerous black dots. Longitudinal middle line rose, lateral lobes of pronotum, each abdomen, lateral surface of hind femur densely covered with red brown dots. Lateral surface of fore and mid femora with black spots. Dorsal and ventral surface of fore femur, ventral surface of mid femur, area around tibial tympana and basal middle tibiae black. Spines of each femur and tibia black. Tegminal costal area with a few brown dots, each cell between R and M veins with a few brown spots, area near posterior margin with numerous dark brown dots. Proximal area in tegminal stridulatory area with a large black spot. Brown tegminal stridulatory apparatus approximately transparent. Apical spine of cerci and tooth of phallus red brown.

Female unknown.

Measurement of male (mm): length of body 18.5; length of pronotum 4.5; width of pronotal disc at base 2.0; width of pronotal disc at apex 2.5; length of tegmen 34.5; largest width of male stridulatory area 4.5; length of male stridulatory vein 2.5; largest width of dorsal area behind male stridulatory area 1.6; width of mirror on right tegmen 1.9; length of mirror on right tegmen 2.4; distance between basal vein of right tegmen and apex of mirror on right tegmen 3.1; width of tegmen 4.1; length of hind wing 41.0; length of fore femur 9.0; length of fore tibiae 11.5; length of mid femur 13.5; length of mid tibiae 15.5; length of hind femur 26.5; length of hind tibiae 28.0; length of epiproct 1.4; length of cerci 2.1; length of subgenital plate 5.2.

Etymology: The name refers to the comparatively short male cerci, which only extends to middle of the subgenital plate.

Discussion: This new species most resembles E. (Rhaebelimaea) pseudochloris Ingrisch, 1998 and E. (Rhaebelimaea) albovittata sp. nov. in shape of the lateral lobes of the male subgenital plate, but differs by shape of the male cerci. It also resembles E. (Rhaebelimaea) albovittata sp. nov. in the appearance, tegminal stridulatory area, and coloration.

Distribution: China: Guangxi Prov..

PLATE 19, a–e, Elimaea brachycerciata sp. nov.; f, Elimaea albovittata sp. nov.; g–k, Elimaea vicinia sp. nov.; l–o, Elimaea yongningensis sp. nov.. a, f, g, l, male abdominal apex, lateral view; b, h, n, male epiproct, dorsal view; c, j, m, male cerci, dorsal view; d, i, o, male subgenital plate, apico-ventral view; e, sclerite of male genitalia, dorsal view; k, male cerci, apico-dorsal view. (scale bar = 1mm) PLATE 20, Color photograph of males of Elimaea brachycerciata sp. nov. (a–f), and E. albovittata sp. nov. (g–l). a,g, lateral lobe of pronotum of male, lateral view; b,h, male left stridulatory area, dorsal view; c,i, male right stridulatory area, dorsal view; d, k, male abdominal apex, lateral view; e, l, male subgenital plate, apico-ventral view; f, sclerite of male genitalia, dorsal view; j, male cerci, apico-ventral view.