15 these mayflies closed a bridge in Pennsylvania - What are they?

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News reports said there were piles of these mayflies two feet deep in Wrightsville, PA.

KennyBruin	June 17th, 2015, 11:14 pm
Posts: 3	I am not much at identifying bugs. I read about a humungous hatch of these mayflies that closed a bridge over the Susquehana River in South Central PA. (at this point the river is smallmouth water, not trout water) Can anyone identify them for me? Thanks in advance.

Jmd123	June 17th, 2015, 11:40 pm
Oscoda, MI Posts: 2611	Kenny, see the thread entitled, "Epic Mayfly emergence" for the opinions of the gang on here. BTW, smallies take these just like trout do!! On Cooke Pond here on the Au Sable River system, I am told that even walleye will rise to a dry during this hatch! Jonathon
	No matter how big the one you just caught is, there's always a bigger one out there somewhere...

KennyBruin	June 17th, 2015, 11:48 pm
Posts: 3	Sorry for the double posting and thanks for pointing me to the "Epic Mayfly" thread.

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