Protosticta zhengi, Yu, Xin & Bu, Wenjun, 2009

Yu, Xin & Bu, Wenjun, 2009, Description of two new damselflies, Protosticta zhengi and Sinosticta sylvatica, from China (Odonata: Zygoptera: Platystictidae), Zootaxa 2245, pp. 54-58 : 55-57

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 ).

Figures

FIGURES 10 – 15. Protosticta zhengi sp. nov., male: (10) head and thorax; (11) pronotum, dorsal; (12) genital ligula, ventral; (13) genital ligula, lateral; (14) caudal appendages, dorsal; (15) caudal appendages, lateral.