Blue-winged Olives
Baetis
Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
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This species was fairly abundant in a February sample of the upper Yakima.
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Stonefly Species Paragnetina media (Embossed Stoneflies)
This is one of the major species of the Perlidae family, perhaps the most important in the East.
Where & when
Time of year : Late June through late July
In 67 records from GBIF, adults of this species have mostly been collected during June (33%), July (24%), May (21%), August (9%), and April (6%).
In 10 records from GBIF, this species has been collected at elevations ranging from 600 to 3802 ft, with an average (median) of 1148 ft.
Species Range
Egg-Laying behavior
Time of day: Dusk
Specimens of the Stonefly Species Paragnetina media
1 Female Adult
I keyed this specimen to Paragnetina, and range maps would seem to rule out every species of that genus except for the common Paragnetina media.
3 Nymphs
Start a Discussion of Paragnetina media
References
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Stonefly Species Paragnetina media (Embossed Stoneflies)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Walker, F. (1852) 1 Catalogue of the specimens of neuropterous insects in the collection of the British MuseumPart I. Phryganides-Perlides. Edward Newman, London. Available from: http://www.archive.org/details/catalogueofspeci00britrich 1-192