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 specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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Caddisfly Species Lepidostoma cinereum (Little Brown Sedges)
Where & when
Time of year : Emergence in summer; long-lived adults continue egg-laying through October
In 21 records from GBIF, adults of this species have mostly been collected during August (43%), July (10%), September (10%), April (10%), June (10%), and October (10%).
In 10 records from GBIF, this species has been collected at elevations ranging from 36 to 8314 ft, with an average (median) of 3182 ft.
Species Range
Start a Discussion of Lepidostoma cinereum
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Lepidostoma cinereum (Little Brown Sedges)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Banks (1899)