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The Specimen

Epeorus vitreus (Sulphur) Mayfly SpinnerEpeorus vitreus (Sulphur) Mayfly Spinner View 4 Pictures
Collected May 26, 2007 from Penn's Creek in Pennsylvania
Added to Troutnut.com by on June 4, 2007

The Discussion

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GONZOOctober 28th, 2008, 12:10 pm
Site Editor
"Bear Swamp," PA

Posts: 1681		This looks like a male vitreus spinner. Although blurry, the terminalia look about right. The dark humeral vein and the little dark marks on the middle rear of segments 3-5 and 7-9 also seem to fit.

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