Elimaea (Poaefoliana) upcurva 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 : 14-15

Elimaea (Poaefoliana) upcurva Liu C-X, sp. nov. (Plate5e–i, 6f–i)

Holotype: male, China: Yunnan Prov.: Xishuangbanna, Mengla, 620–650m, 1959. VI.10, Coll. Zhang Yiran, Li Xiaofu ( IZAS).

Paratype: 1 male, 3 females, same data as in holotype ( IZAS); 1 male, China: Yunnan Prov.: Xishuangbanna, Yunjinghong, 650m, 1958. VII.4, Coll. Li Fulong ( IZAS); 1 male (No. 14010944), China: Yunnan Prov., Xishuangbanna, bubang, 700m, 1993. IX.14,Coll. Yang Longlong ( MSIE).

Description: Holotype (male). Tegmen distinctly surpassing apex of hind femur; hind wings distinctly longer than tegmen; radius sector branching in basal 1/3 part of tegmen, and emitting out 3 branches near apex. Fore coxae unarmed. Fore femur with 7 interior ventral spines; mid femur with 12 exterior ventral spines; hind femur without ventral spines. Genicular lobes of each femur bispinose. Fore tibiae with 3 exterior dorsal spines in distal half as well as 1 exterior dorsal spine over tympana; mid tibiae with 15 interior dorsal spines; hind tibiae with 35 interior and exterior large dorsal spines.

Tenth abdominal tergum slightly produced, with truncated apical margin (plate 5g, 6g); epiproct long triangular, with subobtuse apex. Cerci obliquely extending backwards, approximately columned, distal half gradually upcurved, with apex abruptly acuminated into a long upright spine (Plate 5h, 6g). Subgenital plate with widest base, gradually narrowed until middle, distal half with approximately parallel lateral margin, split from basal 1/5 part into two lateral lobes (Plate 5i, 6i).

Female. Epiproct triangular, slightly longer than wide, with subobtuse apex. Cerci conical, slightly upcurved in distal half. Ovipositor falcate, gradually upcurved, dorsal margin crenulated, and ventral margin finely crenulated near apex. Subgenital plate trapeziform, with base widest, each lateral corner of apical margin with a long sharp triangular projection. Gonangulum of ovipositor with round ventro-apical appendage pointing apicad.

Color: Slightly dark green. Compound eyes dark brown. Head, antennae, legs, and abdomen densely covered with brown dots. Center of each cell between R and posterior margin with aggregation of a few brown dots. Apex of cerci brown.

Measurement (mm): length of body: male 19.0–21.0, female 23.0; length of pronotum: male 5.0–5.5, female 4.8–5.2; length of tegmen: male 30.0–32.0, female 36.2–38.0; largest width of male stridulatory area 1.5; length of male stridulatory vein 1.0; largest width of dorsal area behind male stridulatory area 0.5; width of tegmen: male 4.0, female 5.0; length of hind wing: male 39.0, female 42.0–43.0; length of fore femur: male 9.0–10.0, female 11.0; length of mid femur: male 10.5, female 13.5; length of hind femur: male 24.0, female 26.0–27.0; length of cerci: male 3.5, female 2.5; length of subgenital plate: male 5.5, female 1.0; length of ovipositor 8.0–9.0.

Etymology: The name indicates that apical spine of the male cercus of this new species is strongly upcurved.

Discussion: This new species should belong to the subgenus Poaefoliana recently established by Ingrisch (2011), for its tegmen, which is narrower than pronotum. In lateral or ventral view, E. upcurva sp. nov. resembles E. (Rhaebelimaea) recta Gorochov, 2009 in the male subgenital plate, but distinctly differs by the shape of lateral lobes of the plate, and shape of the male cerci.

Distribution: China: Yunnan Prov.

Subgeus Rectielimaea Liu C-X, subgen. nov.

Type species: Elimaea (Rectielimaea) percauda Liu C-X & Liu X-W, sp. nov.. Here designate.

Diagnosis: Upper part of fore coxae without any spine. Rs branching distinct before middle of tegmen. Male with straight proximal part of MP+CuIP vein in tegminal dorsal part. Male subgenital plate divided into 2 almost immovable (in relation to each other) hind lobes by median notch, which is not reaching middle part of this plate. Male phallus with a long log-like sclerite horizontally produced outwards.

Included species: Type species.