18 KB675 KB18 KB200520192007Bottorff, Richard L.letnik:3številka:67 stranistr. 46-52ISSN:1854-0392ISSN:1855-5810COBISSID:612597URN:URN:NBN:SI:doc-HNOET5NAenMississipi College, Dept. of BiologyPrirodoslovni muzej SlovenijeIlliesiaCaliforniaentomologijainsektiKalifornijaPlecopteraUnited States of AmericavrbniceZDACosumnoperla sequoia, a new species of stonefly from the Sierra Nevada, California (Plecoptera: Perlodidae: Isoperlinae)|A new stonefly species, Cosumnoperla sequoia, is named from an intermittent stream in the southern Sierra Nevada, California. The adult male and female, mature larva, and egg are described, illustrated, and compared with Cosumnoperla hypocrena Szczytko and Bottorff. The adult males of C. sequoia most clearly differ from C. hypocrena by their unique 10th tergal process and swollen spinule patches on tergum 8 and 9. Adult females are distinguished by their elongated and shallowly notched subgenital plate, while larvae possess distinctive medial sclerites on ventral thoracic segments. Both species are apparently restricted to intermittent streams in the Sierra Nevada, CaliforniaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaPrirodoslovni muzej Slovenije