Elimaea (Rectielimaea) percauda 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 : 15-17

Elimaea (Rectielimaea) percauda Liu C-X & Liu X-W, sp. nov. (Plate 12a, 14a–f, 15a–g)

Holotype: male (No. 14011056), China: Guangxi Prov.: Longan, Longhushan Mt., 1995. VIII.29–IX.1, Coll. Liu Xianwei, Jin Xingbao, Zhang Weinian ( MSIE).

Description: Holotype (male). Tegmen distinctly extending far beyond apex of hind femur; hind wings distinctly longer than tegmen. Tegmen with regular parallel cross veins, costal vein indistinct. Sc and R joining at base, then slightly separate; radius sector branching in basal quarter of tegmen, emitting out 4 branches at apical third. Fore coxae unarmed. Fore femur with 5–6 interior ventral spines; mid femur with 7–11 interior ventral spines; hind femur without ventral spines. Genicular lobes of each femur bispinose. Fore tibiae with 1–3 interior and 0–2 exterior dorsal spines; mid tibiae with 5 interior and 7–9 exterior dorsal spines; hind tibiae with 34 interior and 36 exterior large dorsal spines.

Stridulatory file with circa 55 moderately spaced stridulatory teeth, which are gradually becoming larger mediad (Plate 12a). Epiproct long triangular, deflexed, distal quarter part strongly upcurved (Plate 14a, 15f). Cerci long, but not extending to apex of long subgenital plate, deflexed, distinctly incurved, column-like, just gradually acuminated in exterior margin and strongly contracted in interior margin at apex, shaped into a short incurved sharp spine (Plate 14a,f, 15d,g). Subgenital plate long, curved backward in lateral view; basal margin widest, then gradually narrowed toward middle; with subparallel lateral margins in distal half; ventral surface in apical part with angular furrow, not bifurcated, apical margin truncated (Plate 14a,e, 15d,e). Phallus with a long log-like sclerite horizontally produced outwards, dorsally sulcate, slightly curved downwards at apex; each lateral margin with 6 red brown teeth at apex (Plate 14c,d, 15f).

Color: Body yellowish green (maybe green at live). Compound eyes dark brown. Antennae with apex of scape and pedical dark brown, and flagella approximately black. Lateral margins of occiput and pronotal disc densely covered with numerous black dots. Longitudinal middle line of pronotal disc rose. Pronotal disc, lateral lobes of pronotum, each abdomen, lateral surface of hind femur densely covered with red brown dots. Ventral surface of fore and mid femor, anterior tibial tympana, and each tarsus dark brown. Spines of each femur and tibia dark brown. Tegminal costal area with a few brown dots of moderate size, each cell between R and M veins with a few brown spots, area near posterior margin densely covered with numerous dark brown dots. Proximal area in tegminal stridulatory area with a large black spot. Apical spine of cerci and teeth of phallus red brown.

Female unknown.

Measurement of male (mm): length of body 10.5; length of pronotum 4.7; width of pronotal disc at base 2.5; width of pronotal disc at apex 3.0; length of tegmen 31.2; largest width of male stridulatory area 2.5; length of male stridulatory vein 1.8; largest width of dorsal area behind male stridulatory area 1.1; width of mirror on right tegmen 0.7; length of mirror on right tegmen 0.6; distance between basal vein of right tegmen and apex of mirror on right tegmen 1.0; width of tegmen 4.5; length of hind wing 36.8; length of fore femur 7.0; length of fore tibiae 9.2; length of mid femur 11.5; length of mid tibiae 13.4; length of hind femur 23.5; length of hind tibiae 28.5; length of epiproct 2.0; length of cerci 7.9; length of subgenital plate 7.9.

Etymology: The name shows that this new species possesses special male abdominal apex.

Discussion: This new species most resembles E. (Rhaebelimaea) recta Gorochov, 2009 , in shape of the male cerci and structure of the male subgenital plate, but differs by the shape of sharp triangular male epiproct (not with truncate apical margin), length comparison between the male subgenital plate and the male cerci, and the special male genitalia. This new species also resembles Elimaea (Schizelimaea) mira Gorochov, 2009 , in the shape of male stridulatory apparatus, but distinctly differs by absence of spine on the upper part of the fore coxae, shape of male subgenital plate, and male phallus.

Distribution: China: Guangxi Prov..

Subgeus Rhaebelimaea Karny, 1926

Elimaea (Rhaebelimaea) Karny, 1926a: 26 . Type species: Phaneroptera parumpunctata Serville, 1893 , by original designation.

Redescription: Male with proximal part of MP+CuIP vein in tegminal dorsal part more or less convex laterad. Most female with subgenital plate transverse, lateral corner of apical margin more or less spinose.

Elimaea (Rhaebelimaea) cheni Kang & Yang, 1992 (Plate 7a,b)

Elimaea (Orthelimaea) cheni Kang and Yang, 1992 , Acta Zootaxonomica Sinca 17(3): 327.

Material Examined: 4 males (holotype and paratype), 1 female (allotype), China: Hunan Prov.: Dayong, Zhangjiajie, 1985. VII.29, Coll. Chen Naizhong ( ICAU); 1 male (paratype), China: Sichuan Prov.: Emeishan Mt., 1961. VIII.27, Coll. Yang Jikun ( ICAU); 1 female, 3 males, China: Guizhou Prov., Jiangkou, Fanjingshan, 1985. IX.22, Coll. Liu Xianwei ( MSIE); China: Hunan Prov.: 11 females, 12 males, Cili, Suoxiyu, 1988. X.1, Coll. Liu Xianwei ( MSIE); 1 female, 2 males, Dayong, Zhangjiajie, Collector unknown ( MSIE); 1 male, China: Hubei Prov., Hefeng, 1989. VII.24, Coll. Liu Zuyao, Xie Rongdong ( MSIE); China: Sichuan Prov.: 3 females, Ya’an, 1988. IV.10, Coll. Feng Yan ( MSIE); 1 male, 1 female, Chongqing, Cuiweishan, 1982. VIII.1, Coll. Wang Tianqi ( MSIE); 2 males, Guanxian, 1987. VIII.11, Coll. Liu Xianwei ( MSIE); 2 males, Qianjiang, Xiaonanshan, 1989. VII.17, Coll. Xie, He ( MSIE); Jingyunshan Mt., 4 males, 3 females, 1991. VIII.7, Coll. Shi Fuming ( NAFU); 2 males, 1 female, 1993. VIII.7, Coll. Chenjun ( NAFU); Emeishan, 1male, 1987. VIII.11, Coll. Liu Xianwei ( MSIE); 1 female, 820m, 1985. VIII.20, Jin Genyao ( MSIE); 1 male, 1991. X.1, Coll. Liu Zuyao, Wang Tianqi, Yin Haisheng ( MSIE); 1 female, Qingyinge, 800-1000m, 1957. IX.20, Coll. Huang Keren ( IZAS); Dujiangyan, 1 female, Liujie, 1991. X.5, Liu Zuyao, Wang Tianqi, Yin Haisheng ( MSIE); 1 female, Qingchengshan Mt., 1982. VIII.1, Wang Tianqi ( MSIE).

Distribution: China: Hunan Prov., Sichuan Prov., Guizhou Prov., Hubei Prov..

PLATE 7, Color photograph of Elimaea cheni Kang & Yang (a–b), Elimaea obtusilota Kang & Yang (c–d), Elimaea lii Kang & Yang (e–f), and Elimaea semicirculata Kang & Yang (g–h). a, c, e, g, male left stridulatory area, dorsal view; b, d, f, h, male right stridulatory area, dorsal view.