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Leskorcala | April 7th, 2020, 7:41 pm | |
Posts: 16 | Love to pick few brains to ID this black and white mayfly nymph I just collected one on Bitterroot river in Montana April 7th I found it under tree trunk Thanks | |
Millcreek | April 8th, 2020, 9:28 am | |
Healdsburg, CA Posts: 350 | Definitely a member of Heptageniidae. Might be a Rhithrogena. If you still have the specimen, put it on it's back and see if the gills form a "suction cup", or if they meet in front and back, like in this picture. https://calphotos.berkeley.edu/cgi/img_query?enlarge=0000+0000+0816+0153 | |
"If we knew what it was we were doing, it would not be called research, would it?" -Albert Einstein | ||
Leskorcala | April 8th, 2020, 9:08 pm | |
Posts: 16 | Thank you for your help fortunately i did not collect the specimen, i will try next time out.Very different in black and white or cream markings which i have not seen often. | |
Millcreek | April 8th, 2020, 9:25 pm | |
Healdsburg, CA Posts: 350 | I'm guessing at Rhithrogena. Seems likely because of the general aspect of it. The color is unusual for Rhithrogena but there are several undescribed species of western Rhithrogena nymphs. | |
"If we knew what it was we were doing, it would not be called research, would it?" -Albert Einstein | ||
Konchu | April 10th, 2020, 10:50 am | |
Site Editor IndianaPosts: 498 | That looks like my search image of a living Rhithrogena. I'm only aware of R. undulata having been found in the Bitterroot R in MT, but like Millcreek said, we don't know as much about the nymphs as we'd like. The record I have was from a June emergence, FWIW. | |
Title | Replies | Last Reply |
Re: Skwala question In Skwala Stonefly Nymph by Gillybilly | 6 | Feb 20, 2020 by Leskorcala |
Re: Second opinions on this one's ID? In Male Rhithrogena morrisoni Mayfly Spinner by Troutnut | 3 | Jul 5, 2017 by Crepuscular |
Re: Identify In General Discussion by Lastchance | 1 | Jun 17, 2012 by Taxon |
Suwallia sp.![]() ![]() ![]() ![]() ![]() In the Photography Board by Millcreek | 0 | |
Paraleptophlebia sp.![]() ![]() ![]() ![]() ![]() (2 more) In the Photography Board by Millcreek | 0 | |
Re: Ecdyonurus spp, with Symbiocladius parasites![]() ![]() ![]() In the Identify This! Board by Millcreek | 5 | Jan 11, 2015 by Entoman |
Re: Montana Western March Brown Dun![]() In the Photography Board by Leskorcala | 2 | Apr 10, 2020 by Partsman |
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Re: Isonychia velma nymphs![]() ![]() ![]() In the Photography Board by Millcreek | 7 | Aug 19, 2014 by Oldredbarn |
Possibly Gray Drake collected April Bitterroot river In the Identify This! Board by Leskorcala | 0 |
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