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Hello,

I know it's Staphilinidae, I know it's Stenus, what I don't know is wether it's Stenus biguttatus, comma or longipes or even some other one that's not in Frank Koehler's site. Can anyone tell? And how?

Andr

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Hi Andr?, this is Stenus bimaculatus. Very good photo - you can see the special characteristics: yellow spot, fold on the tergit, colour of the legs. Best regards Frank

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Hi Frank,

Thanks. I just sent you a better quality crop of this image for your gallery. Can you just clarify the tergite bit for me, because I can't see any difference with the others.

Andr

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Hello Andr?, thank you very much for the photo.
Stenus tergits: you have no fold, three or four folds. If three, there is usualy on large fold in the middle an two smaller folds. Best regards Frank