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DOS has attached these 3 pictures to aid in identification. The message is below.
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DOSMarch 15th, 2009, 3:50 pm
Buffalo, NY

Posts: 64
I collected these insects from the head waters of a spring creek just south-west of rochester, ny. In this stream i don't believe the mayfly nymphs play a significant role in a trouts diet until they hatch, as they are out numbered 500-1 by scuds on the stream bed and only become distinguishable to trout on their way up to the surface or while in the surface film.

Sorry for the crude macro photos ... I'm still trying to prefect this part of my game...

Andrew Nisbet
DOSMarch 15th, 2009, 4:13 pm
Buffalo, NY

Posts: 64
this is what i have so far...

1 Are #1 & #2 the same species? Family Ephemerellidae ... subvaria?
2 Family Ephemerellidae... subvaria? or Fam. Caenis?
3 Family Baetidae ... but what genera? Pseudocloeon?
Andrew Nisbet
TaxonMarch 15th, 2009, 9:37 pm
Site Editor
Plano, TX

Posts: 1301

I believe your photo labeled #3 to be of a Baetis nymph, probably B. tricaudatus, and your photos labeled 2 & 1 to be of Ephemerella nymphs, both probably E. subvaria.
Roger Rohrbeck
DOSMarch 17th, 2009, 2:17 pm
Buffalo, NY

Posts: 64
Thank you Roger! I hope to have a macro lens and flash Jason suggest soon so I can start taking high quality photos. Just need to save for a couple more pay checks!!
Andrew Nisbet

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