Female Baetidae (Blue-Winged Olives) Mayfly Spinner Pictures
Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Baetidae (Blue-Winged Olives)
Fly Imitations by Orvis
| Stage | Fly Pattern |
| Spinner | Bead Head BWO Soft Hackle |
This mayfly was collected from the northeastern United States on August 9th, 2006 and added to Troutnut.com on August 11th, 2006.
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This picture shows the shape of the 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 the hind wing pretty well.
The costal process of a Baetidae dun.
CameraCanon EOS 20D
Recent Discussions of this Spinner
No Help
Posted by Taxon on Aug 12, 2006
Jason-
The single detached intercalaries in the fore wing would limit the choices to the genera you suggest. The sharply pointed costal projection and single longitudinal vein in the hind wing probably narrow it to a single species. Unfortunately, none of the Baetidae hind wing illustrations to which I have access show either that sharply pointed of a projection or the single longitudinal vein, let alone in combination with one another.
ReplyAnyone want to weigh on on the ID here?The single detached intercalaries in the fore wing would limit the choices to the genera you suggest. The sharply pointed costal projection and single longitudinal vein in the hind wing probably narrow it to a single species. Unfortunately, none of the Baetidae hind wing illustrations to which I have access show either that sharply pointed of a projection or the single longitudinal vein, let alone in combination with one another.
Posted by Troutnut on Aug 11, 2006
I can't follow the key in Merritt & Cummins very far since it's not a male spinner. The sharp costal process could be a good hint. Anybody know which genus or species this is?
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