Parapelerinus ensatus, Liu, Chun-Xiang & Kang, Le, 2008

Liu, Chun-Xiang & Kang, Le, 2008, Two new genera with descriptions of three new species of Phaneropterinae (Orthoptera: Tettigoniidae) from China, Zootaxa 1830, pp. 47-56 : 48-50

1. Parapelerinus ensatus sp. nov. (Figs. 1—5, 12, 14, 16, 18—19, 22, 24, 26, 28, 30–32, 34)

Holotype: female, at light, CHINA: Hainan Island: Ledong County, Jianfengling Nature Reserve, 800m, 4.v.2007, Coll. Zhang dong, Liu Chunxiang ( IZAS).

PLATE I, head. Figs. 1–3, female of Parapelerinus ensatus sp. nov. (holotype); Figs. 4–5, male of Parapelerinus ensatus sp. nov. (paratype from Bawangling Nature in Hainan Island); Figs. 6–8, male of Parapelerinus emarginatus sp. nov. (holotype); Figs. 9–11, female of Conversifastigia gressitti sp. nov. (holotype); Figs. 1, 4, 7, 9, head in caudical view; Figs. 2, 5, 8, 10, head in lateral view; Figs 3, 6, 11, head in dorsal view. (scale = 1 mm).

Paratype: 1 male, 1 female, at light, same data as in holotype, but xi. 2007, Coll. Zhu Xiaoyu (IZAS); 2 males, at light, China: Hainan Island: Bawangling Nature Reserve, 1100m, 15.v.2007, Coll. Liu Chunxiang (IZAS); 2 males, same data as in holotype, but vi. 2003, Coll. Gao Yong (IZAS); 1 male, China: Guangxi: Damingshan Mt., Tianping, 9.x.1990, Coll. Li Tianshan (IEAS).

Description: Female (holotype). Size slightly small for typical phaneropterine katydids. Pronotal disc with distinct middle transverse groove V-shaped, lying in middle, also with an elongate middle line throughout; posterior margin slightly emarginate; lateral lobe of pronotum much higher than long, with anterior margin slightly concave, posterior margin widely rounded, and ventral margin right-angled rounded (Figs. 1–3). Legs (Figs. 12, 14, 16): Anterior femora armed with 4 spines on ventro-anterior margin; median femora with 7 spines on ventro-anterior margin; posterior femur with 11 anterior and 6 posterior ventral margins. Anterior tibiae without or with 1 dorso-anterior spine; median tibiae with 1–3 dorso-internal spines; posterior tibiae with 27 internal and 29 external dorsal spines. Tegmen: radial vein also with one oblique branches after radial sector vein. Wings developed well. Tegmen extending beyond apex of hind femur, apex of tegmen rounded. Hind wing longer than tegmen. Tenth abdominal tergum not modified, with apex truncate. Epiproct tongueshaped. Cerci short, small, conical. Subgenital plate long, divided into two sharp lobes from apical half, with lateral margin not constricted towards apex; with a middle elongate groove in ventral view (Fig. 30).

Male. Stridulatory file cambered, with about 70 regularly sparsely arranged teeth, which are gradually becoming smaller from center towards both ends (Fig. 22). Right stridulatory area with distinct triangular mirror (Fig. 19). Tenth abdominal tergum with apical margin truncated. Epiproct wide triangular, with lateral margin straight, apex obtuse. Cerci incurved, gradually tapering, apex with interior margin strongly contracted towards tip (Fig. 24). Male subgenital plate elongate, groove-shaped; gradually constricted to approximately truncated, slightly sinuate apex (Figs. 22, 34). Inner genitalia strongly sclerotized, deeply split from basal third into two face-to-face systematrical sclerites, which widened and bearing an obtuse dorsal tooth in middle, and apical part deflexed with spine-like apex (Figs. 26, 28, 32).

Color: Overall color light green in female, deep green in male. Eyes brown with a white stripe extending from lateral margin of both occiput and pronotum. Basal portion of male stridulatory apparatus with a large ochreous spot on each tegmen, a black spot present at base of media-anal vein on female tegmen. Sclerites of concealed genitalia, apex of male cerci, and apex of ovipositor brown.

Measurements (mm): Length of body: male 21.5, female 25.8; length of pronotum: male 5.6, female 5.6; basal width of pronotum: male 3.2, female3.3; distal width of pronotum: male 3.6, female 4.0; length of tegmen: male 34.4, female 35.2; largest width of tegmen: male 8.8, female 9.2; length of anterior femur: male 5.1, female 5.7; length of anterior tibiae: male 7.8, female 8.3; length of mid femur: male 7.5, female 7.7; length of mid tibiae: male 9.1, female 9.7; length of posterior femur: male 18.4, female 19.4; length of posterior tibiae: male 19.6, female 23.0; length of ovipositor 8.5; greatest basal width of ovipositor 2.5; middle width of ovipositor 0.9.

Etymology: The new species is named for the distinct shape of the ovipositor.

Discussion: The new species resembles species of Pelerinus Bolivar in the shape of head, lateral lobe of pronotum and tegmen, but distinguished from the latter by the shape of the genicular lobe, structure of male apex including tenth abdominal tergum and concealed sclerotized genitalia, and details of female apex.

Distribution: China: Hainan Island; Guangxi Province.