Skip navigation

The NaturePlus Forums will be offline from mid August 2018. The content has been saved and it will always be possible to see and refer to archived posts, but not to post new items. This decision has been made in light of technical problems with the forum, which cannot be fixed or upgraded.

We'd like to take this opportunity to thank everyone who has contributed to the very great success of the forums and to the community spirit there. We plan to create new community features and services in the future so please watch this space for developments in this area. In the meantime if you have any questions then please email:

Fossil enquiries:
Life Sciences & Mineralogy enquiries:
Commercial enquiries:

177 Views 4 Replies Last post: Jun 12, 2018 8:19 PM by Mobius1 RSS
Currently Being Moderated

Jun 11, 2018 8:30 PM

Strange Fly Identification

Noticed this strange little fellow on my bedroom curtain. It walks very strangely, has tiny wings, the body is angled as though it's always looking up and it's feet are swollen. I can't get it to fly as the wings seem underdeveloped / vestigial.

  • Currently Being Moderated
    Jun 12, 2018 10:46 AM (in response to Mobius1)
    Re: Strange Fly Identification

    An amazing creature! It is a Louse fly, one of the Hippoboscidae, Crataerina sp. It will have come from the House Martins or Swifts nesting nearby. Do you have either of these in or on your house?

    • Report Abuse
      • Currently Being Moderated
        Jun 12, 2018 5:18 PM (in response to Mobius1)
        Re: Strange Fly Identification

        Excellent! it is Crataerina hirundinis then. I hope you are pleased about the martins. I have three nests occupied this year. Every year I fell privileged that these birds fly many thousands of miles just to nest on my house. It is very unusual for Crataerina to become separated from a martin, so I doubt you eill see another.

        • Report Abuse

More Like This

  • Retrieving data ...

Bookmarked by (0)

What the symbols mean

  • "correct" answer available
  • "helpful" answer