Troutnut Forum > Specimen Discussion > What genus is this Heptageniid?
The Specimen
Rhithrogena Mayfly Spinner
View 9 PicturesI'm very tentatively (see the connected forum thread) sticking this mayfly in Rhithrogena for now.
View 9 PicturesI'm very tentatively (see the connected forum thread) sticking this mayfly in Rhithrogena for now.Region: Catskills
Collected Jun 7, 2007
Added Jun 8, 2007
The Discussion
| Troutnut | June 8th, 2007, 6:10 pm | |
| Fairbanks, AK Posts: 1115 | I didn't even recognize it as a member of that family at first, but it seems to be the only option. The hind tarsus is distinctly 5-segmented, which I verified under the microscope because you can't see it very well on my photos. However, I because it's a female spinner I can't key it to genus using the Merrit & Cummins keys. Does anyone just recognize it? I found it drifting, nearly dead on the surface at about 5pm on a hot afternoon. | |
| Jason Neuswanger The Troutnut | ||
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| Konchu | June 9th, 2007, 9:07 am | |
| Indiana Posts: 200 | Ignoring all other details, the body shape & color and leg markings resemble some Epeorus and Rhithrogena. Possibly Rhithrogena is the closest. I collected some about like this with male spinners a few weeks ago in Tennessee. | |
| Troutnut | June 9th, 2007, 11:16 am | |
| Fairbanks, AK Posts: 1115 | I was considering Rhithrogena too because it has a few of those anastomosed crossveins. They just aren't as prominent as I've seen in most illustrations, which gave me cause for doubt. I'll tentatively stick it in there for now. | |
| Jason Neuswanger The Troutnut | ||
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