Elimaea (Elimaea) quadrangulata 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 : 9-10

Elimaea (Elimaea) quadrangulata Liu C-X & Liu X-W, sp. nov. (Plate 4 a–f, 5a–d)

Holotype: Male (No. 14125548). China: Guangxi Prov.: Longzhou, Nonggang, 1995. VIII.18–23, Coll. Liu Xianwei, Jin Xingbao, Zhang Weinian ( MSIE).

Paratype: 1 female (No. 14125549), same data as in holotype ( MSIE).

Description: Holotype (male). Tegmen distinctly surpassing apex of hind femur; hind wings distinctly longer than tegmina; tegminal radius sector branching in basal 1/3 part, and emitting out 3 branches near apex. Fore coxae unarmed. Fore femur with 2–3 interior ventral spines; mid femur with 9 interior ventral spines; hind femur with 10–12 interior ventral spine. Genicular lobes of each femur bispinose. Mid tibiae with 8 interior and 10 exterior dorsal spines; hind tibiae with 27 interior and 28 exterior large dorsal spines, with 1–3 small spines between two large spines, and number of the small spines between large spines increasing from base to apex.

Epiproct long, sharp triangular (Fig 4a). Cerci short, not surpassing basal 2/3 of subgenital plate, oblique backwards, basal margin widest, gradually acuminated toward apex, and abruptly narrowed into an upcurved obtuse tooth at apex (Plate 4c, 5b). Subgenital plate long, sheet-like, split from apical half into two lateral lobes (Plate 4b, 5b).

Female. Epiproct triangular, slightly longer than wide, with angular apex bent up (Plate 4d). Cerci conical, slightly incurved, apical margin subobtuse (Plate 4d). Subgenital plate with widest base, gradually narrowed unto distal quarter part, and then abruptly contracted apicad (Plate 4e, 5c,d). Gonangulum of ovipositor round, without ventro-apical appendage (Plate 4f).

Color: Body yellowish green (maybe green at live). Antennae with red brown scape, pedical and flagella. Mid line of pronotal disc rose. Pronotal disc, anterior margin and dorsal surface of tegmen red brown. Each cell between R and M veins with a few brown spots, both sides of CuA and area near posterior margin with numerous dark brown dots. Reddish abdomen scattered with red brown dots. Lateral surface of ovipositor with brown distal part; apex of ventral margin of ovipositor red brown.

Measurement (mm): length of body: male 18.5, female 24.2; length of pronotum: male 4.8, female 4.4; width of pronotal disc at base: male 2.0, female 2.0; width of pronotal disc at apex: male 2.5, female 2.8; length of tegmen: male 36.5, female 38.5; largest width of male stridulatory area 3.4; length of male stridulatory vein 2.4; largest width of dorsal area behind male stridulatory area 1.3; width of mirror on right tegmen 1.2; length of mirror on right tegmen 1.6; distance between basal vein of right tegmen and apex of mirror on right tegmen 1.8; width of tegmen: male 5.9, female 7.0; length of hind wing: male 44.0, female 44.5; length of fore femur: male 9.5, female 10.0; length of fore tibiae 11.5; length of mid femur: male 12.5, female 14.0; length of mid tibiae: male 13.8, female 15.5; length of hind femur: male 25.0, female 27.5; length of hind tibiae: male 29.5, female 31.5; length of epiproct: male 1.5, female 1.2; length of cerci: male 3.3, female 2.5; length of subgenital plate: male 6.9, female 2.0; length of ovipositor 11.2.

Etymology: The name refers to the distinguished shape of the female subgenital plate.

Discussion: This new species maybe belongs to the species complex fallax-thaii Gorochov, 2009, for the shape of the male subgenital plate, and differs from the species in the complex by the details of the male apex and the special shape of the female subgenital plate.

Distribution: China: Guangxi Prov..