Isidro	March 27th, 2008, 5:09 am
Posts: 24	I think that this one can be impossible... Sabiñanigo, NE Spain. Fresh mountain-climate, about 900 meters. River: with many trees and hedges in the sides. Contaminated, slow, with some lime and big stones, without water weeds, not deep. Mayfly: about 11-12 mm. wingspan, Three cerci, of very clear colour, very dark body, turbinate eyes. Some helps can be given? Thanks Isidro

Taxon	March 27th, 2008, 7:09 am
Site Editor Royse City, TX Posts: 1350	Isidro- My guess would be a species in family Leptophlebiidae. The fact that the median filament is longer than the cerci should identify it rather easily for someone familiar with European mayflies. I recommend you ask Dr. Nikita J. Kluge of St. Petersburg University. Edit: Now that I look at the photo again, I suspect the tails may actually be of equal length, and the angle of the photo makes it appear they are not. In any event, that impacts neither my guess as to family, nor my recommendation for consultation.
	Best regards, Roger Rohrbeck www.FlyfishingEntomology.com

Isidro	May 4th, 2008, 6:56 am
Posts: 24	Thanks Roger. I see that adult mayflies are more difficult taht I supposed...

Quick Reply

You have to be logged in to post on the forum. It's this easy:

Related Discussions

Title	Replies	Last Reply
Chloroperlidae In Sweltsa Stonefly Nymph by Earlfishman	0
Re: Ameletus and Paraleptophlebia In the Photography Board by Millcreek	8	Jun 4, 2016 by Hansolo
More Baetis nymphs (2 more) In the Identify This! Board by Millcreek	0
Re: New mayfly from Spain: now, a nymph In the Identify This! Board by Isidro	2	Mar 26, 2008 by Isidro
Re: Hate to do this again.... In Acroneuria abnormis Stonefly Nymph by PeterO	5	Oct 1, 2010 by GONZO
Re: Hesperoperla or Calineuria In Male Calineuria californica Stonefly Adult by Millcreek	2	Jul 22, 2019 by Millcreek
Re: S. interpunctatum In Female Stenacron interpunctatum Mayfly Dun by Taxon	5	Aug 24, 2006 by Taxon
Re: Differences I'm dying to know about In the Mayfly Genus Tricorythodes by Reify	2	Jul 9, 2018 by Martinlf
Re: great photo's In Female Drunella doddsii Mayfly Dun by Pauly	2	May 26, 2011 by Troutnut
Re: Hendrickson nymph In Ephemerella subvaria Mayfly Nymph by Martinlf	3	Dec 27, 2006 by GONZO