Elimaea (Rhaebelimaea) abrupta 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 : 33-35

Elimaea (Rhaebelimaea) abrupta Liu C-X & Liu X-W, sp. nov. (Plate 12e, 18a–f)

Holotype: male, China: Guangdong Prov.: Fengkai, Heishiding, Shimentan, 1986. VII.5, Coll. Yanhui ( 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 2 parallel branches near apex; and R with two other stems. Fore coxae unarmed. Fore femur with 8–10 interior and 5–7 exterior ventral spines; mid femur with 12 interior and 1 exterior ventral spines; hind femur without ventral spines. Genicular lobes of each femur bispinose. Fore tibiae with 3 interior and 5 exterior dorsal spines; mid tibiae with 8 interior and 11 exterior dorsal spines; hind tibiae with 22 interior and 29 exterior large dorsal spines, with 0–6 small spines between two large spines, and number of the small spines between large spines increasing from base to apex.

PLATE 18, Color photograph of Elimaea abrupta sp. nov. (a–f), and Elimaea tenuicerca 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, male abdominal apex, dorsal view; e, k, male abdominal apex, lateral view; f, l, male subgenital plate, apico-ventral view; j, male cerci, apico-ventral view.

Stridulatory file with circa 130 densely arranged stridulatory teeth, which are gradually becoming smaller distad (Plate 12e). Epiproct long triagular, much longer than wide, deflexed, with rounded apex (Plate 18d). Cerci long, but not extending to apex of long subgenital plate, deflexed, distinctly incurved, basal 1/3 part columned, and then abruptly acuminated toward apex, shaped into a long slender curve hook at apex, which looks like a small rat on whole view, basal 1/3 part like its body, and distal 2/3 like its tail (Plate 18d,e). Subgenital plate long, curved backward in lateral view; basal margin widest, then abruptly narrowed from basal 1/3 part; triangularly excised at apical 1/3 part, into two divergent lateral lobes (Plate 18e,f). Phallus with a pair of conchate sclerites, internal margin with numerous small cricoid brown teeth (Plate 18e).

Color: Body yellowish green (maybe green at live). Compound eyes dark brown. Lateral surface of pronotal disc, and lateral lobes of pronotum scattered with dark brown dots. Spines of each femur and tibia dark brown. Lateral surface of tegmen green, and dorsal surface of tegmen yellow, tegminal costal area with many brown spots of moderate size, each cell between R and M veins with a few brown spots, area between M and Cu scattered numerous brown dots, area near posterior margin densely covered with numerous brown dots. Distal 2/3 part of cerci and tooth of phallus red brown.

Female unknown.

Measurement of male (mm): length of body 21.5; length of pronotum 5.0; width of pronotal disc at base 2.5; width of pronotal disc at apex 3.5; length of tegmen 37.2; largest width of male stridulatory area 4.9; length of male stridulatory vein 3.6; largest width of dorsal area behind male stridulatory area 3.5; width of mirror on right tegmen 2.6; length of mirror on right tegmen 2.2; distance between basal vein of right tegmen and apex of mirror on right tegmen 3.0; width of tegmen 13.0; length of hind wing 45.2; length of fore femur 12.1; length of fore tibiae 14.5; length of mid femur 16.0; length of mid tibiae 18.5; length of hind femur 31.2; length of hind tibiae 33.0; length of epiproct 2.6; length of cerci 4.0; length of subgenital plate 6.0.

Etymology: The name refers to the special male cerci, which possesses basal 1/3 part columned, and then abruptly acuminated toward apex, shaped into a long slender curve hook at apex.

Discussion: This new species is distinguished from its congeners by the special male cerci and the divergent lateral lobes of the male subgenital plate, and differs from most congeners by tegmen with curved posterior margin.

Distribution: China: Guangdong Prov..