Tapiena bivittata Liu & Xia, 1992

Liu, Chun-Xiang & Kang, Le, 2010, The genus Tapiena Bolívar (Orthoptera: Tettigoniidae: Phaneropterinae; Holochlorini), with description of three new species from China, Zootaxa 2328, pp. 49-64 : 52

Tapiena bivittata Liu & Xia, 1992

( Figs. 1 a–b, 3 a–f)

Tapiena bivittata Liu & Xia, 1992 , In: Huang, F. (Ed.) Insects of Wuling Mountains Area, Southwestern China; (Holotype F, origi. descrip.; type locality: Mt. Fanjin, Guizhou, China; type deposited in MSIE, Shanghai).

Material examined. 1 male, China: Sichuan Prov.: Mt. O’Mei, 1982. VIII.13, Coll. Xiong Jiang ( ISAS). 1male, China: Sichuan Prov.: Wolong, Hetaoping, 1994. VIII.19, Coll. Du Yuzhou ( WAFU); 1 female, China: Sichuan Prov.: Mt. O’mei, Baoguosi, 500m, 1974. VII.22, Coll. Zhou Yao & Yuan Feng ( WAFU); 7 males, 3 females, China: Guangxi Prov.: Maoershan, Gaozai, 2007. VII.5–13, Coll. Liu Chunxiang ( IZAS); 7 males, 5 females, China: Guangxi Prov.: Guilin, Huaping Natural nature reserve, Cujiang, 2007. VI.28–VII.4 Coll. Liu Chunxiang ( IZAS).

Redescription. Male. Lateral lobes of pronotum slightly higher than long (5: 4). Tegmen with approaching margins, distal sixth part conical, apex rounded; radius sector branching little before middle of tegmen, forked, radius stem with other one lateral branches. Stridulatory file on underside of left tegmen with about 130 fine teeth ( Fig. 3a ). Tenth abdominal tergum transverse, dorsal surface in apical half with a middle longitudinal furrow. Cerci short, strongly curved and crossing each other, abruptly but not strongly constricted behind basal half, apex shaped into a spine ( Fig. 3d ). Subgenital plate with basal part wide, gradually acuminated, suddenly narrowed behind basal two-thirds, ventral surface with a distinct middle carinae, apical margin with a small triangular notch, as longer as one sixth length of subgenital plate; styli slender, as long as half length of subgenital plate ( Fig. 3e ).

Female. Tenth abdominal tergum, epiproct, cerci, and ovipositor similar to those of other congener. Ovipositor falcate, strongly upcurved, ventral margin serrulate near apex, dorsal margin indistinctly serrulate thoroughly ( Fig. 3 j). Subgenital plate wide triangular with middle part swollen, apex rounded ( Fig. 3 k).

Coloration ( Fig. 7a ). Green on the whole. Front part of head, i.e., frons, clypeus and labrum dark brown; compound eyes dark brown; occiput, pronotal disc, and dorsal part of tegmen with a pair of black continuous lateral stripes. Tegminal dorsal part with a black posterior corner in the basal part; cells between Radius vein and MA vein with large aggregation of black dots; Part near tegminal posterior margin densely with many brown dots. Auditory area of anterior tibiae and anterior femur laterally and dorsally with many black stripes. Femoral spines with black tip.

Measurements (mm). Length of body: male 23.0, female 27.0; length of pronotum: male 5.0, female 6.0; length of tegmen: male 33.5, female 36.0; largest width of tegmen: male 7.5, female 8.5; length of anterior femur: male 5.8, female 7.0; length of median femur: male 7.0, female 8.5; length of posterior femur: male 19.5, female 21.0; length of ovipositor 8.0.

Distribution. China (Sichuan Prov., Guangxi Prov., Guizhou Prov.).

Figures

FIGURE 1. photograph of the genus Tapiena Bolívar. a, b, T. bivittata; c, d, T. simplicis; e, f, T. quadridens; g, h, T. spinicaudata; i, j, T. parapentagona Liu & Kang, sp. n.; k, l, T. longzhouensis. a, c, e, g, i, k, photograph of male left stridulatory area; b, d, f, h, j, l, photograph of male right stridulatory area.

FIGURE 3. a – f, T. bivittata; g – l, T. simplicis. a, g, male stridulatory file on underside of left tegmen; b, i, male abdominal apex in lateral view; c, j, male subgenital plate in ventral view; d, h, male cerci in dorsal view; e, k, female abdominal apex in lateral view; f, l, female subgenital plate in ventral view.

FIGURE 7. a, b, whole body in lateral view. a, Tapiena bivittata; b, Tapiena sp. (unidentified).