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.
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This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.
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Stonefly Genus Leuctra (Needleflies)
Ernest Schwiebert notes in Matching the Hatch that trout are very fond of these uncommon stoneflies when they are available.
Genus Range
Start a Discussion of Leuctra
References
- Schwiebert, Ernest G. 1955. Matching the Hatch. MacMillan Publishing Company.
Stonefly Genus Leuctra (Needleflies)
Taxonomy
Species in Leuctra
Leuctra carolinensisCarolina Needleflies
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Leuctra duplicataAtlantic Needleflies
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Leuctra ferrugineaEastern Needleflies
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Leuctra mariaNortheastern Needleflies
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Leuctra mohaBlackwater Needleflies
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Leuctra sibleyiBrook Needleflies
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Leuctra tenellaBroad-lobed Needleflies
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Leuctra trilobaThree-lobed Needleflies
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Leuctra variabilisVariable Needleflies
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Species in Leuctra: Leuctra carolinensis, Leuctra duplicata, Leuctra ferruginea, Leuctra maria, Leuctra moha, Leuctra sibleyi, Leuctra tenella, Leuctra triloba, Leuctra variabilis
17 species (Leuctra alabama, Leuctra alexanderi, Leuctra alta, Leuctra baddecka, Leuctra biloba, Leuctra cottaquilla, Leuctra crossi, Leuctra grandis, Leuctra laura, Leuctra mitchellensis, Leuctra monticola, Leuctra nephophila, Leuctra paleo, Leuctra rickeri, Leuctra szczytkoi, Leuctra tenius, and Leuctra truncata) aren't included.