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Mayfly Genus Acerpenna (Tiny Blue-Winged Olives)

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» Genus Acerpenna (Tiny Blue-Winged Olives)
Species in AcerpennaNumber of SpecimensNumber of Pictures
Acerpenna pygmaeaTiny Blue-Winged Olive00

4 species aren't included.
Common Name
MatchCommon Name
****Tiny Blue-Winged Olives
Pictures Below
See Acerpenna pygmaea for details. It is the only species known to be of even minor importance to anglers and was previously known as Baetis pygmaeus.

Pictures of 4 Mayfly Specimens in the Genus Acerpenna:

Specimen Page:12
Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly NymphAcerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Nymph View 3 PicturesThis is a very rare mayfly in western Montana. The shape of the last gill is a key to its identification. I have collected this species in only one location.
Collected May 5, 2007 from the Upper Stillwater River in Montana
Added to by Bnewell on June 26, 2011
Specimen Page:12

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