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> Mayfly: Choroterpes picteti?

Isidro	March 3rd, 2008, 11:57 pm
Posts: 24	I don't know how in Earth I gave this identification, years ago, to this very common mayfly in my zone. Maybe looking a book I've found one similar with this name. But unfortunately, there are any adult picture of Choroterpes in the web. Leptophlebiidae is sure, and females are very difficut to see, while the males (turbinate eyes) are very common into my city (Zaragoza, NE Spain). Posterior wings are very small, and costal zone very dark. Wingspan is about 15 mm. Two cerci. The rivers of the zone are big, deep, contaminated and slow. Thanks a lot. Regards, Isidro
Konchu	March 4th, 2008, 7:59 pm
Site Editor Indiana Posts: 505	The eyes are hard to see from my machine, but could this be a baetid? Why do you assume Leptophlebiidae?
Isidro	March 5th, 2008, 12:15 am
Posts: 24	Thanks Konchu. Maybe it's a baetid, but due to elongate wings, turbinate eyes, posterior wings present... I thinked that was identical to Leptophlebiidae. Now I need a genus -and, if it's possible, species- level identification ;-)
Isidro	March 10th, 2008, 7:53 am
Posts: 24	Anybody.... ? :-(
Troutnut	March 11th, 2008, 8:41 pm
Administrator Bellevue, WA Posts: 2737	It looks like a Baetid to me, too. The features you listed aren't incompatible with that ID. As for species and genus, I doubt we can be of much help. Even a series of high-quality closeups like I've got on this site often isn't sufficient to figure out genus and species for Baetid mayflies, even well-known American species.
	Jason Neuswanger, Ph.D. Troutnut and salmonid ecologist
Isidro	March 12th, 2008, 2:43 am
Posts: 24	Many thanks Jason. Then, is not a Choroterpes but a Baetid... It's a pity that the ID was impossible...
Isidro	May 18th, 2008, 4:57 am
Posts: 24	There is a lost answer??? taxon answered the last, in the forum says "6 answers", but I entrer and see my answer the last and only 5 answers...
Taxon	May 18th, 2008, 6:23 pm
Site Editor Royse City, TX Posts: 1350	Isidro- Not a lost answer, just a deleted answer. Taxon had just run across a photo of dun with a fore wing which was similar to the one in your photo, and impulsively posted a comment, but promptly changed his mind and deleted it. Incidentally, the photo was in the book Trout Fly Recognition by John Goddard, and the photo was labeled Leptophlebia vespertina female dun.
	Best regards, Roger Rohrbeck www.FlyfishingEntomology.com
And	June 4th, 2008, 2:40 pm
Europe Posts: 14	Hello Isidro, Choroterpes (like all Leptophlebiidae) has always 3 cerci Greetings Andrea

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