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Taxon | July 1st, 2006, 10:54 pm | |
Site Editor Royse City, TXPosts: 1350 | Jason- My guess would be Baetis brunneicolor. Roger | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
Troutnut | July 2nd, 2006, 7:20 am | |
Administrator Bellevue, WAPosts: 2737 | How come? | |
Jason Neuswanger, Ph.D. Troutnut and salmonid ecologist | ||
Taxon | July 6th, 2006, 10:45 am | |
Site Editor Royse City, TXPosts: 1350 | Jason- Oh, sorry. Just discovered your response. Because of the striking similarity of your specimen's fore wing venation to the that of Baetis brunneicolor portrayed in Leonard & Leonard, page 87, Fig. 51. Here is your photo arranged for comparison purposes: | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
Troutnut | July 6th, 2006, 11:25 am | |
Administrator Bellevue, WAPosts: 2737 | Ok, thanks. I just looked at Leonard and you're right that the venation is strikingly similar (though not identical). They don't have very many other Baetis wings to compare to, though, so I'm hesitant to rule out the other species on those grounds. The costal process on the hind wing is much sharper in this specimen than in the Leondards' drawing. I think that's a fairly important characteristic for this family and it's one reason I'm hesitant to call it Baetis. Also, the Leonards show some intercalary veins on the hind wings of brunneicolor, which I don't see in this photo. That could be due to individual variation or bad focus in the photo, though. The taxonomy of this whole family is such a mess right now. I really hope somebody publishes a definitive key to the genera soon based on something better than mandible setae and the like. | |
Jason Neuswanger, Ph.D. Troutnut and salmonid ecologist | ||
Troutnut | September 21st, 2006, 9:28 pm | |
Administrator Bellevue, WAPosts: 2737 | I'm even more confident that this is Acerpenna now that I've photographed an extremely similar specimen from upstate NY. The new female was associated with a male which I also photographed, and it keyed fairly confidently to Acerpenna in Merritt & Cummins. I've fallen a bit behind on posting new pictures I've taken. I've got about 30 new specimens to put up, I think, including the Acerpenna pair. All that's coming ASAP. | |
Jason Neuswanger, Ph.D. Troutnut and salmonid ecologist | ||
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