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Taxon | April 19th, 2007, 12:17 am | |
Site Editor Royse City, TXPosts: 1350 | Okay, does anyone recognize this mayfly. I am guessing that it's a female subimago of genus Isonychia, but it sure has striking coloration. | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
Troutnut | April 19th, 2007, 8:13 am | |
Administrator Bellevue, WAPosts: 2737 | 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, Ph.D. Troutnut and salmonid ecologist | ||
Quillgordon | April 19th, 2007, 10:46 am | |
Schuylkill County, PA. Posts: 109 | 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, 11:20 am | |
Site Editor "Bear Swamp," PAPosts: 1681 | 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, 11:55 am | |
Schuylkill County, PA. Posts: 109 | 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, 2:54 pm | |
Site Editor Royse City, TXPosts: 1350 | 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. | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
Taxon | April 19th, 2007, 3:11 pm | |
Site Editor Royse City, TXPosts: 1350 | 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. | |
Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
Title | Replies | Last Reply |
Anyone care to guess at this one? In Female Eurylophella Mayfly Spinner by Troutnut | 0 | |
Re: Male spinner. Isonychia ? In the Photography Board by Wystone | 3 | Aug 12, 2007 by JAD |
Re: Isonychia Questions In General Discussion by DayTripper | 2 | Jun 30, 2009 by DayTripper |
Re: Peculiar Heptageniid In Female Epeorus vitreus Mayfly Spinner by Troutnut | 2 | Oct 5, 2006 by GONZO |
Probably another E. vitreus In Male Epeorus vitreus Mayfly Spinner by GONZO | 0 | |
Some neat new bugs today In General Discussion by Troutnut | 0 | |
Re: Dark reddish-brown spinner In the Identify This! Board by Wiflyfisher | 13 | Jul 25, 2014 by Millcreek |
Re: help with midge adult In the Identify This! Board by Cherylkorca | 2 | Feb 18, 2020 by Cherylkorca |
Re: A little somethin somethin In the Identify This! Board by DayTripper | 4 | Jun 10, 2013 by Oldredbarn |
Re: basic bug identification on stream In the Identify This! Board by Adirman | 1 | Aug 30, 2010 by GONZO |