Protosticta zhengi sp. nov.

(Figs. 10–15)

Material. Holotype: 3, China, Yunnan, Xishuangbanna, Menghun, 750m, 30-V-1958, leg. Leyi Zheng. Holotype will be deposited at Institute of Entomology, Life Sciences College of Nankai University, Tianjin, China.

Etymology. Species epithet is in honor of the collector Professor Le-yi Zheng.

Description. Male. Labium pale yellow; labrum, bases of mandibles, and anteclypeus pale blue; postclypeus, genae, frons, and anterior half of vertex shining black; posterior half of vertex dull black; base of postclypeus and middle of frons with yellow marks; antennae dark brown, except the first two segments pale yellow; postocular spots and postoccipital stripe absent (Fig. 10). Prothorax pale yellow, with black marks (Fig. 11); synthorax (Fig. 10) black dorsally, with pale yellow dorsal carina; antehumeral stripe absent; sides of synthorax black above interpleural suture, pale yellow below, with a black stripe along metathoracic pleural suture; legs pale yellow, with black stripes on extensor surfaces of femora; wings hyaline; pterostigmata trapezoidal, dark brown, each covering two cells. Abdomen black, with pale yellow as follows: lateral of S1- 2, 0.20 and 0.6–0.8 of S3-6, lateral 0.20 of S7-8; S9 wholly pale blue, S10 wholly black. Caudal appendages black, cerci longer and more robust than paraprocts (Figs. 14–15). Genital ligula with shield like head and curved apical lobes (Figs. 12–13).

Measurements (mm): abdomen + appendages 44.0; hind wing 21.0.

Diagnosis. This new species is similar to Protosticta beaumonti and Protosticta curiosa, but differs from P. beaumonti by having dark marks on dorsum of prothorax (Fig. 11) and lacking an apical thorn on paraprocts (Figs. 14–15), and differs from P. c u r i o s a by having curved apical lobes on top of genital ligula (Figs. 12–13).