Nemoura nankinensis Wu, 1926

Chen, Zhi-Teng & Du, Yu-Zhou, 2017, Supplementary Illustrations For Two Nemoura (Plecoptera: Nemouridae) Species, Illiesia 13 (10), pp. 98-103 : 102

Nemoura nankinensis Wu, 1926

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org: TaxonName:6358

( Figs. 4-5 )

Nemoura nankinensis Wu, 1926 . J. Sci. Arts. 5:332. Type locality: Jiangsu Province, Nanking; Wu, 1938. Plecopt. Sin., 182; Illies, 1966. Das Tierreich, 82:208.

Type material ( lost). Holotype: male, China: Jiangsu Province, Nanking , Ning-Kuo Temple, 4 April, 1923, leg. Chenfu Wu.

Material examined. 18 males and 10 females, China: Jiangsu Province, Nanjing, Mt. Zijinshan , 18-19 February, 2006, leg. Zhi-Jie Wang ; 1 male and 1 female, same locality, 2 February , 2016, leg. Zhi- Teng Chen, Zhi-Jie Wang ; 41 males and 21 females, same locality, 17 February , 2016, leg. Zhi-Teng Chen , Qin-Bo Huo , Qiu-Yue Huo ; 19 males and 18 females, same locality, 3 March , 2016, leg. Zhi-Teng Chen , Qin-Bo Huo .

Remarks. The epiproct of N. nankinensis is oval with the dorsal sclerite medially having a pair of separated, transverse lateral arms reaching the ventral sclerite, and the anterior of the arms with a pair of circular, apically bifurcated sclerites. The ventral sclerite is broad with a row of long spines. The lateral knob is well developed but weakly sclerotized ( Figs. 4-5 ).

The holotype and all paratypes of N. nankinensis are lost ( Wu 1962). The original description and illustrations by Wu (1926, 1938) were typically incomplete. Yang et al. (2015) repeated the original description and used the illustrations of Wu (1926). These authors indicated that the male genitalia of N. nankinensis was similar with N. yunnanensis Wu, 1940 (see fig. 275 in Yang et al. 2015), but this morphological similarity is difficult to ascertain with their available illustrations. Based on the male epiproct and cercal characters, N. nankinensis appears more similar with N. oculata Wang & Du, 2006 (see Figs. 15-21 in Wang et al. 2006) described from Guizhou Province of southwestern China. However, comprehensive morphological studies of both males and females of the many species of the genus Nemoura described or reported from China (DeWalt et al. 2017) are necessary before specific relationships can be determined more accurately.

Figures

Figs. 4, 5. Nemoura nankinensis Wu. 4. Male terminalia, dorsal view; 5. Male terminalia, lateral view.