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.
Featured on the forum
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and
fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or
support the project for an enhanced experience here.
Caddisfly Species Glossosoma nigrior (Saddle-case Makers)
This is an important caddisfly in the East and Midwest, and the most abundant species in the entire order on some waters. Its small size (hook size 20-22) makes it less significant than larger abundant species.
Where & when
Time of year : May through June
In 68 records from GBIF, adults of this species have mostly been collected during May (25%), June (24%), July (21%), August (13%), and September (9%).
In 46 records from GBIF, this species has been collected at elevations ranging from 95 to 5103 ft, with an average (median) of 1234 ft.
Species Range
Egg-Laying behavior
Time of day: Evening
Larva & pupa biology
Substrate: Gravel
Discussions of Glossosoma nigrior
Start a Discussion of Glossosoma nigrior
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Glossosoma nigrior (Saddle-case Makers)
Species Range
Common Name
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Banks (1911)