Ephemeridae/ Ephemeroptera?

Observed by nightflynightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebrates on 25th September 2010
(Added to iSpot on 4th February 2012)
25 Sep 2010, na Trosk (60)
14 August 10 (8)
Location: Hill lough on Garron Plateau, Co. Antrim.
Identification
  • likely ID 
    Ephemeridae by nightflynightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebrates at 11:22 pm 04/02/12
    Confidence: I'm as sure as I can be.
    Search Encyclopedia of Life for Ephemeridae
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Other observations of Ephemeridae

Comments

ID Question

5 February 2012 - 1:49pm — chrisbrookschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrates

Hi Cathal, I've been pondering over this and I think it is newly emerged and lacks a bit of colour. Would you agree it has 2 tails or can I see 2 stuck together (I think it's 2) ? Regards Chris

Chris Brooks - www.dragonfly-images.co.uk

Chris Im quite confident this

5 February 2012 - 2:53pm — nightflynightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebrates

Chris Im quite confident this a 2 tailed insect, I will try to find another pic to back that up.

Thanks.

Cathal.

ID Comment

5 February 2012 - 4:29pm — chrisbrookschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrateschrisbrooks's reputation in Invertebrates

Cathal, two tails and no or very small insignificant hind wings I would say it was a Baetidae but with little confidence, there are just so many species. What do you think ?

Chris Brooks - www.dragonfly-images.co.uk

Baetidae

6 February 2012 - 11:49am — inopinatusinopinatus's reputation in Invertebratesinopinatus's reputation in Invertebratesinopinatus's reputation in Invertebrates

Ephemeridae, the true mayflies, have 3 tails, so this is not that. It is in the order of Ephemeroptera (also often known as mayflies, or up-wing flies, dayflies, etc). I would agree that this is probably from the Baetidae family due to the lack of visible hind wings, however it is hard to tell. Can you give a rough idea of the size?

Thanks inopinatus, Smaller

6 February 2012 - 1:14pm — nightflynightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebrates

Thanks inopinatus,

Smaller than the early spring 'large dark olive' which I think is or was once called Baetis rhodani? Just checked, yes B. rhodani.

A good bit smaller. I am going to have to estimate. Body length from tip of abdomen to mouthparts, approx 9mm. I am guessing, sorry I cant be more presice, I should search for other photos as Ive taken many of various flies at this lake for several years.

Sorry I didnt get back to you yesterday Chris,

What about Cloeon dipterum, the pond olive?

Cloeon simile?

Cathal.

Cloeon

6 February 2012 - 1:31pm — inopinatusinopinatus's reputation in Invertebratesinopinatus's reputation in Invertebratesinopinatus's reputation in Invertebrates

I think that Cloeon is a good bet, particularly with the apparent absence of hind wings. Difficult to tell the two species apart though and both can be found in lakes.

Sticking in another shot of a

9 February 2012 - 12:35am — nightflynightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebratesnightfly's reputation in Invertebrates

Sticking in another shot of a dead or dying insect which is very similar, it doesnt have to stay in if not appropriate as it isnt the same insect, but it was found at the same water a month earlier in the year.

2 tails, probably baetidae?

Cathal.

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