Mesoperlina capnoptera ( McLachlan, 1886 )

Huo, Qing-Bo, Chen, Zhen-Ning, Kong, Xiang-Bo & Du, Yu-Zhou, 2020, New records and a confirmation of three perlodid species in China, with additional notes and images of Rauserodes epiproctalis (Zwick, 1997) (Plecoptera: Perlodidae), Zootaxa 4808 (3), pp. 455-474 : 459-461

Mesoperlina capnoptera ( McLachlan, 1886)

Chloroperla capnoptera: McLachlan, 1886 [1885–1886], Tijdschr. Entomol., 29:157.

Isoperla capnoptera: Claassen, 1940 , Mem. Agri. Exp. Sta., Cornell Univ., 232:199.

Isoperla capnoptera: Illies, 1966 , Das Tierreich, 82:397.

Mesoperlina monae: Joost, 1970 , Entomol. Nach., 14(8):120.

Mesoperlina capnoptera: Zhiltzova, 1970 , Entomol. Obozr., 49(3):578.

Mesoperlina capnoptera: Zwick, 1973 , Das Tierreich, 94:253.

Mesoperlina capnoptera: Teslenko & Zhiltzova, 2009 , Russian Academy of Sciences, Vladivostok: Dalnauka, 48.

Diagnosis: Male tergum 10 divided behind by a longitudinal division ½ the length; medial edge of each half produced into an acute forward and upward hook, with a small rhomboid-like sclerite located between bases. Median sclerite on the posterior margin of male tergum 10 not separated. Aedeagus short, wide at base, apex in profile plumb-like, small number spines scattered over the surface of aedeagus not forming distinct clusters ( Figs. 8–10 ).

Distribution: China (Xinjiang Uygur Autonomous Region), Mongolia, Russia.

Material examined: 3 ♂♂, China, Xinjiang Uygur Autonomous Region, Shawan County, Shuanglonggou scenic spot, ca. 43.88°N, 85.35°E ( UTM: 45 N 367446 4859868), 2011-VII-16 .

Remark: A single species of Mesoperlina has been previously recorded from China, M. ochracea Klapálek, 1921 also from the northwestern Xinjiang Uygur Autonomous Region and Afghanistan, Iran, and Russia ( Wu 1938, Du 1999, DeWalt et al. 2020). The male of M. ochracea compared to M. capnoptera , has a larger area of sensilla on male tergum 9, and the median rhomboid sclerite of tergum 10 is smaller than that of M. ochracea , without a complete surrounding membranous area.

Figures

FIGURE 8. Mesoperlina capnoptera (McLachlan, 1886), male habitus.

FIGURE 9. Mesoperlina capnoptera (McLachlan, 1886), male. A: head and pronotum; B: terminalia, dorsal; C: terminalia, ventral.

FIGURE 10. Mesoperlina capnoptera (McLachlan, 1886), spines on the aedeagus.