Troutnut Forum > Get Bugs Identified > Alabama Mayfly
| Taxon | April 19th, 2007, 3:17 am | |
| Mercer Island, WA Posts: 483 | Okay, does anyone recognize this mayfly. I am guessing that it's a female subimago of genus Isonychia, but it sure has striking coloration. | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
|
These advertisements will disappear if you register. | ||
| Troutnut | April 19th, 2007, 11:13 am | |
| Fairbanks, AK Posts: 1115 | I think you're right. I couldn't say what species it is, but I don't see any reason not to presume I. bicolor. I'm also not 100% positive it's a female, since the rear end is pretty blurry. Males in Isonychia have unusually small eyes. | |
| Jason Neuswanger The Troutnut | ||
| Quillgordon | April 19th, 2007, 1:46 pm | |
| Schuylkill County, PA. Posts: 95 | Taxon, Aren't the legs a big key here. Front legs ..... brown Mid/rear legs ....... cream (white) * Charles Wetzel called the female spinner the 'White-gloved Howdy'. Q.g. | |
| Flyfishing is a state of mind! .............. Q.g. C/R........barbless | ||
| GONZO | April 19th, 2007, 2:20 pm | |
| "Bear Swamp," PA Posts: 876 | Roger- This certainly looks like Isonychia to me. There are several Iso species with a southern distribution, so I won't hazard a guess about species. John- The leg colors you mention are pretty typical of Isonychia. Wetzel's "white-gloved howdy" name referred to the white-tipped front legs of the bicolor female, held out as if awaiting a greeting handshake. (I love that name!) | |
| Quillgordon | April 19th, 2007, 2:55 pm | |
| Schuylkill County, PA. Posts: 95 | John- * female spinner only....... @ 'Matching the Hatch', E. Schwiebert Jr. (pg.71). Right....... These guys from PA. were pretty smart, weren't they. ..... LOL........ | |
| Flyfishing is a state of mind! .............. Q.g. C/R........barbless | ||
| Taxon | April 19th, 2007, 5:54 pm | |
| Mercer Island, WA Posts: 483 | Gonzo-Roger- Right. There are actually (6) Isonychia species known to be in Alabama, and of those, only I. bicolor is described in flyfishing entomology literature. | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
| Taxon | April 19th, 2007, 6:11 pm | |
| Mercer Island, WA Posts: 483 | Jason-I'm also not 100% positive it's a female, since the rear end is pretty blurry. Males in Isonychia have unusually small eyes. Right. Aren't blurry rear ends just the pits! However, I believe the brownish blur is actually some basal cerci segments rather than claspers. Neither the fore legs nor eyes offered much help either. Actually, the character that caused me lean toward female, was the wing venation, which I believe to be more heavily stained in female than male Isonychia. | |
| Roger Rohrbeck www.FlyfishingEntomology.com | ||
New features!
