mayfly - Ephemerella aurivillii

Moved

Moved from Ephemerella.

… tom murray, 15 April, 2009 - 10:26pm

Ephemerella aurivillii

It is. A half-grown one. Reasonably common in cold-water fast streams mainly in the mountains.

… Donald S. Chandler, 15 April, 2009 - 10:03pm

Moved

Moved from Ephemerella invaria.

… tom murray, 7 April, 2009 - 9:27pm

Back off to genus...

until Donald makes a determination. I didn't consider aurivilli, but that might be a better possibility for this one.

… Lloyd Gonzales, 7 April, 2009 - 8:31pm

Lloyd

I still have the specimen, and will be giving it to Don in a couple weeks.

… tom murray, 4 April, 2009 - 11:47am

Does Donald have this one?

Based on the smallish dorsal abdominal spines and the lack of light areas near the middle of the abdomen (though both are variable), I'm inclined toward invaria rather than subvaria.

… Lloyd Gonzales, 4 April, 2009 - 11:21am

Maybe

even an E. auri*villii. E. sub*varia doesn't look correct, but I am lying in the bushes until I see the specimen.

… Donald S. Chandler, 5 April, 2009 - 8:51pm

Moved

Moved from Mayflies.

… tom murray, 3 April, 2009 - 9:42am

ephemerellid

same as

, only younger

… v belov, 3 April, 2009 - 9:27am