Balta tangi, Qiu, Zhi-Wei, Che, Yan-Li, Zheng, Yu-Hong & Wang, Zong-Qing, 2017

Qiu, Zhi-Wei, Che, Yan-Li, Zheng, Yu-Hong & Wang, Zong-Qing, 2017, The cockroaches of Balta Tepper from China, with the description of four new species (Blattodea, Ectobiidae, Pseudophyllodromiinae), ZooKeys 714, pp. 13-32 : 20-21

Balta tangi sp. n. Figs 5, 6, 40-51

Type material.

Holotype: China, Yunnan: male (IESWU), Xishuangbanna, Menglun Botanical Garden, Lvshilin, 652 m, 21°54.710′N, 101°16.941′E, 16 November 2009, coll. Guo Tang and Zhiyuan Yao. Paratypes: 25 males and 16 females, same collection event as holotype; 8 males and 8 females, Xishuangbanna, Menglun, G213 (National Road) bamboo forest, 21-26 November 2009, coll. Guo Tang and Zhiyuan Yao; 11 males and 21 females, Xishuangbanna, Menglun Botanical Garden, Lvshilin, 656 m, 21°54.705′N, 101°16.898′E, 13 November 2009, coll. Guo Tang and Zhiyuan Yao.

Differential diagnosis.

Balta tangi species resembles B. spinea in appearance, but can be distinguished from the latter by the following characters: 1) face with transversal stripes between interocular space (Fig. 40) while face of B. spinea without transversal stripes but having two longitudinal stripes, each of them with one small rounded white spot; 2) subgenital plate in ventral view between the styli slightly emarginated and with a protrusion in the middle (Fig. 48) but in B. spinea without the protrusion.

Description.

Male. Body yellowish brown. Vertex brownish yellow. Face with three stripes (Fig. 40). Disk of pronotum yellowish brown and with some small scattered and symmetrical blackish brown spots, lateral borders of pronotum hyaline (Fig. 42). Lateral border of abdomen sterna with round blackish brown spots (Fig. 6). Third and fourth maxillary palpomeres nearly the same length, distinctly longer than the fifth (Fig. 41). Hind wing with triangle apical, near apex of R with posterior branches, CuA with three complete branches (Fig. 44). Front femur type C3 (Fig. 45), tarsal claws strongly asymmetrical and unspecialized (Fig. 46). Abdominal tergites unspecialized.

Male genitalia. Supra-anal plate symmetrical with hind margin slightly concave in the middle, paraprocts simple (Fig. 47). Subgenital plate with hind margin slightly emarginated and with process in the middle, conical styli located on the apex of either lateral lobes respectively, ventral side of subgenital plate with some fine spines near the stylus (Fig. 48). Hook-like phallomere on right side and with preapical concavity (Fig. 49). Median phallomere sticklike, base thick and strong, apex gradually becomes sharp-pointed, near the middle part of median phallomere with an arc-shaped appendage, base, and apex with short setae (Fig. 50). Left phallomere complex, apex with spinous structure (Fig. 51).

Female. Sexual dimorphism, female body thicker and stronger than male, both tegmina and hind wings degraded, just extending to supra-anal plate, RA with one or two branches.

Measurements (mm).

Overall length male 14.5-16.0, female 12.0-13.5; tegmen length male 13.5-14.0, female 9.4-9.6; pronotum length × width male 2.9-3.0 × 3.9-4.1, female 2.8-3.0 × 3.9-4.2.

Etymology.

This species is named in honor of Mr. Guo Tang, who collected the holotype of the species.

Distribution.

China (Yunnan).