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 one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.
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Caddisfly Species Psilotreta labida (Dark Blue Sedges)
See the Psilotreta genus page for more details that this important species shares with others in its genus.
Where & when
This species is found up and down the eastern mountains. The hatch starts in late April in Virginia and finishes in northern New England in late June. It peaks in June in the Catskills, where it is especially well-known.In 7 records from GBIF, adults of this species have been collected during June (57%) and May (43%).
Species Range
Egg-Laying behavior
Time of day: Evening
Specimens of the Caddisfly Species Psilotreta labida
1 Male Adult
1 Larva
Start a Discussion of Psilotreta labida
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Psilotreta labida (Dark Blue Sedges)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Ross (1944)