Isoperla nanchana Navás, 1922

Chen, Zhi-Teng, Song, Liang-Dong & Feng, Wen-Tao, 2019, A new species of Isoperla (Plecoptera: Perlodidae) from the Qinling Mountains of northwestern China and notes on the Chinese species of the genus, Zootaxa 4651 (2), pp. 379-391 : 382-383

Isoperla nanchana Navás, 1922

Isoperla nanchana Navás, 1922 . Mem. R. Acad. Cienc. Artes Barcelona 3, 17(15): 387; Wu, 1935a. Catalogus Insectorum Sinensium, 1: 301; Wu, 1938b. Plecopterorum Sinensium, a monograph of the stoneflies of China (Order Plecoptera ): 44; Claassen, 1940. Mem. Cornell agric. Exp. Sta., 232: 204; Aubert, 1956. Mitt. Schweiz. ent. Ges., 29: 441; Illies, 1966. Das Tierreich, 82: 411; Yang & Li, 2018. Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera : 49.

Type information. Holotype male, China: Jiangxi Province, Nanchang City, north of Chazhou to Ganzhou. 1909.

Remarks. Only male of this species is known. The well-developed, broadly rounded vesicle was illustrated ( Fig. 1G ; see fig. 25 in Wu 1938b). Color pattern: head pale brown; pronotum rugose, with two dark spots; legs brown; ventral surface of body yellowish ( Wu 1938b). Additional material needs to be examined to verify its validity, describing the male terminal and everted aedeagus, and the female subgenital plate.

Figures

FIGURE 1. Drawings of older Isoperla species from China tracing original literature. A. I. bimaculata, female head and pronotum, dorsal view; B. I. bimaculata, female terminalia, ventral view; C. I. curvispina, male terminalia, dorsal view; D. I. curvispina, male terminalia, ventral view; E. I. curvispina, female terminalia, ventral view; F. I. fengi, female terminalia, ventral view; G. I. nanchana, male terminalia, ventral view; H. I. neimongolica, male head and pronotum; I. I. neimongolica, male terminalia, dorsal view; J. I. neimongolica, male terminalia, ventral view; K. I. ordosi, male terminalia, dorsal view; L. I. ordosi, male terminalia, ventral view; M. I. sowerbyi, female terminalia, ventral view; N. I. yangi, male terminalia, dorsal view; O. I. yangi, male terminalia, ventral view; P. I. yangi, female terminalia, ventral view.