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Type: Article
Published: 2021-12-22
Page range: 541-552
Abstract views: 323
PDF downloaded: 26

Loss of a larval generic character: an interesting and new description for Isoperla vevcianensis Ikonomov, 1980 (Plecoptera: Perlodidae) with updated adult characters

Department of Zoology, Eszterházy Károly University, Leányka u. 6, H-3300 Eger, Hungary
Mátra Museum of Hungarian Natural History Museum, Kossuth Lajos u. 40, H-3200 Gyöngyös, Hungary
4Department of Ecology, Faculty of Sciences, Universidad Católica de la Santísima Concepción, 409054 Concepción, Chile
Department of Civil and Environmental Engineering, Ehime University, Bunkyo-cho 3, 790-8577 Matsuyama, Japan. Center for Marine Environmental Studies (CMES), Ehime University, 790-8577 Matsuyama, Japan
Plecoptera aedeagus cox1 larval description North Macedonia paraproct stoneflies


The larva of the Balkan microendemic Isoperla vevcianensis Ikonomov, 1980 (Plecoptera: Perlodidae: Isoperlinae) is described on the basis of larvae associated with adults by means of cox1 sequences similarities. Eggs and everted penis of the male are described for the first time. The larva possessed blunt paraprocts which were previously sharp among Palaearctic larvae of this huge Holarctic and Oriental genus. The commonly pointed paraproct remains as the only distinguishing generic character for the morphologically diverse larvae of Palaearctic Isoperla, but should not be considered as an exclusive character state for the genus. Morphological characters are illustrated in comparison with the sympatric larvae of the Isoperla tripartita species complex.



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