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Posted by Nikita Vikhrev on 27-09-2006 20:24

Turkey, Side, sand dunas. I collected 6 specimens, unfortunely all females. Size 3-4mm.
Looks like Sepsis thoracica with unspoted wings.
Nikita

Posted by Jan Willem on 01-10-2006 18:02

Hi Nikita,

Do you mean to say that this is the male of Sepsis lateralis? The drawings of the legs in "The Sepsidae (Diptera) of Europe" (Pont & Meier, 2002) look rather different!?

Jan Willem

Posted by Nikita Vikhrev on 01-10-2006 20:59

Hi Jan.
I thought so, because Sepsis lateralis wasn't registred in Russia and I didn't know how it looks like. Right know I've got message from Andrey Ozerov, that may be it is (Sepsis dissimilis?).
Today evening I collected strange female of (Sepsis lateralis?) with head dorso-ventraly flattened as in case of Xenosepsis. Than I dicovered that it is (Sepsis lateralis-dissimilis), but still very srtange - cells br-bm fused (so in case of male). Another females is with separated bm-br. This is genus level character in Sepsidae.
Andrey, help!
Nikita

Posted by Andrey Ozerov on 02-10-2006 07:45

1, 3 --- It may be is Sepsis lateralis Wd.
2 --- It is Australosepsis niveipennis (Becker)

Posted by Nikita Vikhrev on 02-10-2006 17:47

Thank you Andrey.
3- bm-br - fused, so Australosepsis niveipennis too?
Nikita

Posted by Nikita Vikhrev on 03-10-2006 21:33

male of (S.lateralis?)
Collected today.
At least br-bm cell separated and forelegs of another type...

Posted by Jan Willem on 04-10-2006 09:08

Hi Nikita,

Yes those legs agree with the figures given in Pont & Meier (2002). You do have quite a lot of experience with Sepsidae in the meantime!

Jan Willem

Posted by Nikita Vikhrev on 04-10-2006 20:51

#10

Thank you Jan.
Ozerov confirmed too S. lateralis.
Today collected some another crazy Sepsidae - Dicranosepsis or some another, but from genus not living in Russia.
Nikita