What insect is this?

enter image description here

Found in the UK, approximately 10mm-15mm in length.

  • 4
    $\begingroup$ That is clearly a mayfly (family: Ephemeroptera) — using that may help you find an answer for yourself. It would also be very helpful if you were to edit your post to include "as much information as possible on location/habitat, size/characteristics and behavior." (from the species-identification tag description) ——— In particular, what is the local environment is like and can you give more specific location information than "UK"? $\endgroup$
    – tyersome
    Commented Jun 3, 2021 at 22:46
  • $\begingroup$ if you want to learn more about this group of insects you can take a look here sciencedirect.com/topics/agricultural-and-biological-sciences/… $\endgroup$ Commented Mar 4, 2022 at 15:41

1 Answer 1


That insect looks quite like a Mayfly, it's an ancient insect that belongs to the order Ephemeroptera. I'll go a step further and guess that species, that one there is most probably a Green drake, they aren't harmful at all as in they don't sting or bite but if a lot of dead mayflies pile up they can cause respiratory inflamations, asthma, hay fever that sort of stuff.

They're a vital part of the pond ecosystem.Credit to
Missoulian Angler Here's a picture of a Green drake and it's quite similar to your picture. Credit to Missoulian Angler I think some of the major reasons why it is a Mayfly are a s follows:-

  1. The transparent wings are a minor giveaway.
  2. The three tail filaments are a major giveaway.
  3. Very short almost non-existent antennae
  • $\begingroup$ Welcome to Biology.SE! You are more likely to get a positive response to your answer if you explain why your identification is correct. Specifically, please edit your answer to add discussion of key features that led you to this conclusion and supporting references or at least validated images. Without this your answer is indistinguishable from opinion. ——— Thank you for taking the tour, but you may also wish to consult the help center pages for additional advice on How to Answer effectively on this site. Thank you! $\endgroup$
    – tyersome
    Commented Jun 5, 2021 at 17:55
  • $\begingroup$ There friend, added a picture. $\endgroup$ Commented Jun 5, 2021 at 18:40
  • $\begingroup$ Thank you for the update! Please provide a citation/source for the image you are using — images must be credited to their creators just like quotes are to their authors. This is generally considered good practice in scientific communication and will help other users understand by providing context. ——— In addition, it would be very helpful if you could describe the key features that allow you to be certain this is a mayfly and what makes you suspect a Green drake in particular. Thanks again! $\endgroup$
    – tyersome
    Commented Jun 6, 2021 at 16:41
  • $\begingroup$ There mate edited as you said I should, I think that should put me in the clear. Grateful for your sound advice $\endgroup$ Commented Jun 6, 2021 at 17:06

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