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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Stonefly Genus Amphinemura (Tiny Winter Blacks)
Genus Range
Specimens of the Stonefly Genus Amphinemura
1 Female Adult
A few of these tiny stoneflies were among the only species of aquatic insect adults in the air on this particular afternoon, with most of the action coming from a species of Epeorus mayfly. I somehow forgot to photograph this one on the usual ruler, but I recall it was very, very small, with an abdomen no more than 1mm in girth and the body, not counting the wings, probably just 5-7mm long.
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Stonefly Genus Amphinemura (Tiny Winter Blacks)
Taxonomy
Species in Amphinemura
Amphinemura varshavaWarsaw Forestflies
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Species in Amphinemura: Amphinemura varshava
15 species (Amphinemura alabama, Amphinemura apache, Amphinemura appalachia, Amphinemura banksi, Amphinemura delosa, Amphinemura linda, Amphinemura mexicana, Amphinemura mockfordi, Amphinemura mogollonica, Amphinemura nigritta, Amphinemura puebla, Amphinemura reinerti, Amphinemura texana, Amphinemura venusta, and Amphinemura wui) aren't included.