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The Specimen
Baetis (Blue-Winged Olives) Mayfly Dun
View 4 PicturesI'm guessing this specimen is in the genus Acerpenna because of the very sharp costal process (
Costal process: A bump or point sticking up from the front margin of an insect's wing, usually the rear wing of certain mayflies. It is sometimes called a costal projection.) on her hind wing. I'm guessing pygmaea because it is the most common species.
Editor note: Not Acerpenna. This is most likely Baetis. See comments on this male specimen for rationale. Also compare with the female specimen associated with it.
View 4 PicturesI'm guessing this specimen is in the genus Acerpenna because of the very sharp costal process (
The costal process of a Baetidae dun.
Editor note: Not Acerpenna. This is most likely Baetis. See comments on this male specimen for rationale. Also compare with the female specimen associated with it.
Collected July 1, 2005 from the Bois Brule River in Wisconsin
Added to Troutnut.com by on April 22, 2006
Added to Troutnut.com by on April 22, 2006
The Discussion
| Flytyer0423 | August 20th, 2009, 8:54 pm | |
| germansville PA Posts: 14 | when the one wing is like the one in the picture thats called a crippled mayfly? | |
| (vistit my website @) www.natureboyoutdoors.weebly.com | ||
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