Neoperla flavescens Chu, 1929

Li, Weihai, Wang, Hongliang & Lu, Wenyan, 2011, Species of the genus Neoperla (Plecoptera: Perlidae) from Henan, China, Zootaxa 2735, pp. 57-63 : 58

Neoperla flavescens Chu, 1929

( Figs. 1–5 )

Neoperla flavescens Chu. 1929 . The China Journal. 10:89. Type locality: Zhejiang, Hangzhou. Neoperla flavescens Chu, 1929 . Wu, 1938: 110.

Diagnosis. Males of this species are characterized by a concave area formed between the elevated sides of the posterior process of tergum 7 in which the recurved triangular process of tergum 8 rests ( Figs. 2, 3 ). The aedeagus is heavily sclerotized and has a finger-shaped subapical projection with an abruptly constricted tip ( Figs. 4, 5 ). Females of this species are characterized by sternum 7 having a dark medial sclerite on the produced subgenital plate (Fig. 106 in Wu 1938).

Remarks. Our specimen agrees well with descriptions by Wu (1938) and Chu (1929). In particular, features of the aedeagus illustrated by Wu (1938) reliably identify our fresh material.

Material examined. 1 male, China: Henan Province, Luanchuan County, Mt. Laojunshan, 2008. VII.26, 33.7587 N, 111.6456 E, Weihai Li.

Distribution. China (Henan, Zhejiang).

Figures

FIGURES 1 – 5. Neoperla flavescens, male. 1. Head and pronotum, dorsal view. 2. Terminalia, dorsal view. 3. Terminalia, lateral view. 4. Aedeagus, dorsal view. 5. Aedeagus, lateral view.