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For Insects, Spiders & Their Kin
For the United States & Canada
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Family Perlodidae - Perlodid Stoneflies

Stonefly - Isoperla Perlodid stonefly, genus Clioperla - Clioperla clio Perlodid stonefly, genus Isoperla, species? - Isoperla Perlodid stonefly, Clioperla clio - Clioperla clio Isoperla namata Isoperla mormona - voucher specimen, in alcohol - Isoperla Isoperla  - Isoperla Stonefly (teneral)

Perlodidae-Megarcys? - Megarcys Stonefly - Malirekus iroquois Perlodid stonefly, genus Diploperla - Diploperla Perlodid stonefly, Diploperla duplicata - Diploperla duplicata Helopicus subvarians Isogenoides hansoni Frisonia picticeps (Hanson, 1942) - Frisonia picticeps - female Perlodidae - Skwala curvata - male