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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Mayfly Genus Fallceon (Blue-Winged Olives)
Species of the Fallceon genus can be identified by having typical Baetis dark or olivaceous coloration and the hooked process on its hind wings of Anafroptilum (prev. Centroptilum). This genus has only two species of possible interest to anglers:
Fallceon quilleri - a former species of Baetis that has had eight former Baetis species synonymized with it. It has a continental distribution.
Fallceon thermophilos - a former species of Baetis that has had one species from Baetis synonymized with it. It has a Northwest distribution.
Fallceon quilleri - a former species of Baetis that has had eight former Baetis species synonymized with it. It has a continental distribution.
Fallceon thermophilos - a former species of Baetis that has had one species from Baetis synonymized with it. It has a Northwest distribution.
Where & when
In 15 records from GBIF, adults of this genus have been collected during July (20%), September (20%), April (20%), August (13%), June (13%), May (7%), and March (7%).
In 119 records from GBIF, this genus has been collected at elevations ranging from 740 to 11401 ft, with an average (median) of 4938 ft.
Genus Range
Start a Discussion of Fallceon
Mayfly Genus Fallceon (Blue-Winged Olives)
Taxonomy
Species in Fallceon: Fallceon quilleri, Fallceon thermophilos
5 species (Fallceon eatoni, Fallceon fortipalpus, Fallceon longifolius, Fallceon sageae, and Fallceon sonora) aren't included.