Stoneflies of the United States
Stoneflies of Mercer County, Illinois
Species denoted with an asterisk (*) are unconfirmed or dubious records.
Perlidae
Subfamily Acroneuriinae
Common Stone -- (Acroneuria abnormis) Constricted Stone -- (Acroneuria evoluta) Giant Stone -- (Attaneuria ruralis) Widespread Stone -- (Perlesta decipiens)
Perlodidae
Subfamily Perlodinae
Austin Springfly -- (Hydroperla fugitans)
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