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Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large Brown Trout that only touch streamers for the rest of the year.

Stonefly Genus Perlesta (Golden Stones)

This is a large genus in the Acroneuriinae subfamily that currently contains 24 species. Distribution is primarily southern though a few species make it into the East and Midwest. Perlesta placida is reportedly a common species. Only a single western species of limited importance and distribution is known for the southern Rockies.

Specimens of the Stonefly Genus Perlesta

1 Female Adult
Female Perlesta (Golden Stones) Stonefly Adult
This stonefly species was the most common insect over the small stream I fished one August afternoon; I saw dozens in their egg-laying flights.

Recent Discussions of Perlesta

Perlesta placida
14 replies
Posted by Mad4Trout on Jul 3, 2011 in the species Perlesta placida
Last reply on Nov 27, 2011 by Mad4Trout
I don't know why "Stoneflies of the United States" has such a limited range for Perlesta placida, but we (Madmen Chapter of TU) have collected them on the Mad River, Logan Co., OH. They were reported by Gaufin (1956, Ohio J. Sci. 56 (6):321-324) in numerous counties. They have been recorded more recently by Ohio EPA.

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Species in Perlesta
Perlesta placidaGolden Stone00
17 species (Perlesta adena, Perlesta baumanni, Perlesta bolukta, Perlesta browni, Perlesta cinctipes, Perlesta dakota, Perlesta decipiens, Perlesta etneri, Perlesta frisoni, Perlesta fusca, Perlesta golconda, Perlesta lagoi, Perlesta nelsoni, Perlesta nitida, Perlesta shubuta, Perlesta teaysia, and Perlesta xube) aren't included.
Genus Range
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