Probably Acroneuria lycorias

The Specimen

Collected March 29, 2005 from Fall Creek in New York
Added to Troutnut.com by on April 6, 2006

GONZO	October 10th, 2006, 6:08 pm
Site Editor "Bear Swamp," PA Posts: 1681	I've been staring at this one for quite some time. My first impression was lycorias (Boreal Stone, Giant Brown Stonefly). I'm pretty familiar with this species, but I don't know of a good key to Acroneuria at the species level. The lack of a row of spinules along the occiput of the head and presence of postocular and pronotal fringes all say Acroneuria for sure.

GONZO	October 28th, 2008, 10:34 am
Site Editor "Bear Swamp," PA Posts: 1681	Jason, I now think that this is probably abnormis rather than lycorias.

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