Zyras ( Termidonia ) nabanensis

Zyras ( Termidonia) nabanensis View in CoL Z.-Q. Yan and L.-Z. Li, new species

( Fig. 2 View FIGURE 2 )

Type material. Holotype: China: 1 ♂, labeled ‘ CHINA: Yunnan Prov., Xishuangbanna (西双版纳), Nabanhe N. R. (纳 版河自然保护区), 18.vi.2009, Ling-Zeng Meng leg.’; HOLOTYPE [red], Zyras nabanensis, Yan & Li det. 2015, ( SNUC); Paratype: 1 ♀, same label as above-mentioned, PARATYPE [yellow], Zyras nabanensis, Yan & Li det. 2015, ( SNUC).

Description. Body length: 9.45–9.78 mm. Coloration: head, elytra, blackish; pronotum reddish; abdomen blackish with the posterior margins of the segments reddish-brown; legs and antennae reddish to reddish-brown.

Head ( Fig. 2 View FIGURE 2 A) approximately 1.22 times as long as wide; punctation sparse in median dorsal area, moderately sparse in lateral and posterior areas; eyes medium large and bulging, just 1.25 times as long as postocular region in dorsal view; Antennae not distinctly flattened and short, can almost reaching posterior margin of pronotum when directed caudad; antennomere III distinctly dilated apically, nearly twice as long as wide; Pronotum ( Fig. 2 View FIGURE 2 A) squared, approximately 1.13 times as wide as head and 1.14 times as wide as long; punctation distinctly denser and coarser than that of head. Elytra dilated posteriad, at posterior margin approximately 1.27 times as wide, and at suture as long as pronotum ( Fig. 2 View FIGURE 2 A); punctation conspicuously dense and defined, but finer than that of pronotum. Hind wings fully developed. Abdomen ( Fig. 2 View FIGURE 2 A) approximately as wide as elytra at posterior margin, widest at segment V; microsculpture present, but mostly shallow; punctation fine and moderately dense; tergites IV and VII with pronounced sexual dimorphism.

Male: tergite IV conspicuously modified, posterior margin elongated and on either side with long and acute process ( Fig. 2 View FIGURE 2 A); paratergite with two pair of short processes; tergite VII at posterior margin with pronounced tubercle ( Fig. 2 View FIGURE 2 A); posterior margin of tergite VIII in the middle slightly concaved. aedeagus ( Figs. 2 View FIGURE 2 G, 2H, 2I) with conspicuous processes.

Female: tergites IV, and VII unmodified; posterior margin of tergite VIII in the middle concave; spermatheca as in Fig. 2 View FIGURE 2 F.

Measurements. BL: 8.45–9.78; FBL: 4.06–4.56; HW: 1.20–1.22; PL: 1.44–1.50; PW: 1.66–1.70; EL: 1.39–1.57; EW: 2.30–2.33.

Distribution. China: Yunnan.

Etymology. The specific epithet derives from the name of the type locality.

Comment. Based on the shape and coloration of body, the new species is similar to the Zyras ( Termidonia) rougemonti Pace, 1986 . The new species can be distinguished from Z. ( T.) rougemonti by having a cambered convex between two processes of the tergite IV, and by different sharp of the apico-lateral processes of median lobe of the aedeagus (in Z. ( T.) rougemonti with a barb at apex in lateral view).