Abstract

Two new species are added to the eastern Nearctic genus Hansonoperla , which included only H. appalachia Nelson. Hansonoperla hokolesqua n. sp. is described from northeastern Kentucky and southwestern West Virginia, and H. cheaha n. sp. from northeastern Alabama. All 3 species are described from the adult male, adult female, and the egg. Diagnostic features and a key for separating the 3 species are presented, supported by illustrations and scanning electron microscopy photomicrographs.

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