Isoperla asiatica Raušer, 1968

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 : 456-457

Isoperla asiatica Raušer, 1968

Isoperla asiatica: Raušer, 1968 , Entomol. Abhandl., 34(5):364.

Isoperla asiatica: Zwick, 1973 , Das Tierreich, 94:242.

Isoperla asiatica: Zwick & Surenkhorloo, 2005 , Acta Zool. Acad. Sci. Hung., 51(3):264.

Isoperla asiatica: Teslenko, 2006 , Zootaxa, 1130:5.

Isoperla asiatica: Teslenko & Bazova, 2009 , Entomol. Rev., 89(9):1063.

Isoperla asiatica: Teslenko & Zhiltzova, 2009 , Russian Academy of Sciences, Vladivostok: Dalnauka, 34.

Isoperla asiatica: Judson & Nelson, 2012 , Zootaxa, 3541:46.

Diagnosis: Male head mostly yellowish except the areas between ocelli to occiput with a darker brown spot; a pale oval spot between the posterior ocelli. Antennae, palpi and cerci dark brown. Pronotum disc yellowish medially and dark brown rugosities present laterally. Paraprocts short and slightly sclerotized. Vesicle of sternum 8 reduced ( Figs. 1–2). Aedeagus (not fully everted) membranous, without obvious sclerites; fine asperities present on surface ( Fig. 3 ). Female with a semicircular dark subgenital plate ( Fig. 4 ). Head and pronotal maculations, male and female terminalia match well the illustrations of Zwick & Surenkhorloo (2005) and Teslenko & Zhiltzova (2009).

Distribution: China (Inner Mongolia Autonomous Region), Mongolia, Russia.

Material examined: 3 ♂♂, 2 ♀♀, China, Inner Mongolia Autonomous Region, Hinggan League, outskirts of Arxan City , ca. 47.17°N, 119.89°E ( UTM: 50 N 719009 5228108), 2018-V-28, leg. Xue Hai-Yang.

Figures

FIGURE 3. Isoperla asiatica Raušer, 1968, aedeagus. A: dorsal; B: ventral; C: fine asperities on its surface.

FIGURE 4. Isoperla asiatica Raušer, 1968, female. A: head and pronotum; B: terminalia, dorsal; C: terminalia, ventral.