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Male Maccaffertium modestum (Cream Cahill) Mayfly Dun Pictures

This mayfly was collected from the Teal River on June 4th, 2005 and added to on May 24th, 2006.

Recent Discussions of this Dun

Not Stenacron 2 Replies »
Posted by GONZO on Nov 26, 2006
Last reply on Dec 15, 2012 by Brookyman
Hi Jason-

While scanning the Stenacron specimens in response to Jeff's question, I came across this one. It does not appear to be Stenacron. It lacks the dark pigmentation (spot) between R1 and R2 that is distinctive of this genus. Clearly, it is a member of the Heptageniidae, but I haven't found a definitive clue to indicate which one it might be. Perhaps someone else will detect something more conclusive.

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