New mayfly from Spain: now, a nymph

Isidro	March 18th, 2008, 1:34 am
Posts: 24	Im' not hoping an ID, due to the "success" of the last post of European mayflies. I suppose that if t's almost impossible identify mayflies by photo at adult phases, much more difficult will be at nymphal phases. But, maybe someone know, at least, the family of this one. This nymph was caught at Ebro river, in Zaragoza, NE Spain. This river is great and deep, slow and highly contaminated, with lime. The nymph sizes about 15 mm (without cerci). Can be identified, at least, at family level? Many thanks.

Taxon	March 18th, 2008, 5:12 am
Site Editor Plano, TX Posts: 1337	Isidro- Your mayfly nymph appears to be a clinger of family Heptageniidae, perhaps of genus Ecdyonurus. Given a decent macro photo, identifying mayflies to family and genus is actually somewhat easier with nymphs than with the winged lifestages, as the gross features on the nymphal lifestage are much more distinctive.
	Best regards, Roger Rohrbeck www.FlyfishingEntomology.com

Isidro	March 26th, 2008, 6:34 am
Posts: 24	Many thanks Taxon! This is very surprising for me. I hoped that teh adults would be much more easily identified than nymphs. The picture is not good but my camera don't give more. Thanks again for de ID.

Quick Reply

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

Title	Replies	Last Reply
More Baetis nymphs (2 more) In the Identify This! Board by Millcreek	0
Re: Agapetus larva and pupa (8 more) In the Photography Board by Millcreek	6	Jul 7, 2015 by Millcreek
Paracloeodes minutus In the Photography Board by Millcreek	0
Acentrella insignificans nymphs (1 more) In the Photography Board by Millcreek	0
Re: Aquatic Insect ID In the Identify This! Board by QualityAqua	3	Jan 25, 2010 by Taxon
Re: Apatania larvae and pupae In the Photography Board by Millcreek	3	Feb 22, 2016 by PaulRoberts
Re: Please confirm Ephemerella needhami In the Identify This! Board by Jorowan	2	May 5, 2021 by Doug1234567
Re: Calineuria californica and Hesperoperla pacifica (3 more) In the Photography Board by Millcreek	1	Jan 30, 2016 by Martinlf
Re: Possible Maccaffertium Terminatum Mayfly Spinner? In the Identify This! Board by Delvalle	1	Jul 11, 2008 by Taxon
Re: Driving Home from Ithaca In Fishing Reports by Willy	2	Jun 19, 2007 by Martinlf