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> > Acroneuria specimen moved from genus to species level

The Specimen

Acroneuria carolinensis (Golden Stone) Stonefly NymphAcroneuria carolinensis (Golden Stone) Stonefly Nymph View 3 Pictures
Collected February 7, 2004 from unknown in Wisconsin
Added to Troutnut.com by on January 25, 2006

The Discussion

Post Reply
EntomanMarch 11th, 2012, 8:14 am
Northern CA & ID

Posts: 2604		The head markings better match up with A. carolinensis (pronounced unbroken W, thick tapering occipital band). Another clue is the femora maculation. A. abnormis usually has either dark brown legs without obvious maculation or longitudinal dark stripes as opposed to the pale bands or blotches evidenced on this specimen. While a dark dorsal habitus is usually associated with abnormis, it is not a very dependable character. The other common species (lycorias) has head and leg markings that can look quite similar, but it has anal gills and usually a pale center with dark margins on the terga.

A. carolinensis
http://bugguide.net/node/view/515177

A. abnormis
http://www.troutnut.com/specimen/446
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

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