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Hi, really struggling to ID this Sepsid or find an appropriate key. Possibly Themira but I'm not sure. Found it in some grassland/maintained meadow next to a small lake in Central Scotland. Measures 3.4mm from the bottom of the abdomen to the top of the thorax.

Anyone know what it might be? I can take more pictures of particular features if they would be helpful/diagnostic.

Thanks! :)

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I'd be very interested, but there is no picture visible...

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Hello Finlay,

Indeed a Themira. Looks like Themira minor/lucida. You can find a key to Themira species here: https://www.resea..._of_Europe

Kind regards,
Ectemnius

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Hi Ectemnius,

Amazing, thank you so much! How can you tell it's a Themira so definitively?

Thanks,
Finlay

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Hi Finaly,

Well, it's an entirely black Sepsidae with no wing spot. That coupled with the habitus and the typical armature of the front legs' tibia and femur.
After collecting about a thousand specimens in the Netherlands and publishing four species new for the fauna I can say, no other North-Western European Sepsidae have such a habitus.
https://www.resea...a_Sepsidae

Kind regards,
Ectemnius

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Okay great, thanks a lot for your help!