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stoneflies; Isoperla; Kaszabia; Mesoperlina; redescription; taxonomy; key; new record; Mongolia
Abstract:
A key to the adults of the 10 Mongolian species of Isoperla and Kaszabia is provided. It is accompanied by first descriptions and illustrations of species-specific details of male and female genitalia, and eggs. I. eximia ZAPEKINA-DULKEIT is a new record for the country. I. potanini (KLAPÁLEK) is redescribed and removed from Mesoperlina, a genus unknown in Mongolia.