Diptera.info

Thread subject: Diptera.info :: Dilophus febrilis

Posted by Andre Jas on 12-10-2006 16:03

Hi,

I read there's one Bibio sp that lives in autumn in Holland. Could this be the one? Image taken today.

Thanks,

Andr

Edited by Andre Jas on 27-10-2006 22:49

Posted by Andre Jas on 12-10-2006 16:03

Posted by Stephen on 12-10-2006 17:12

What huge eyes! The head reminds me of Pipunculidae.

Posted by Zeegers on 12-10-2006 17:23

Actually, there are two autumn species, if you consider Bibio lepidus as a proper species (which I, at least for the time being, do):
B. clavipes and B. lepidus.

This would be B. lepidus: the pterostigma is large and dark.

Good find ! Locality ?

Theo Zeegers

Posted by Zeegers on 12-10-2006 17:25

Just to be sure: could we see a closeup of the front tibia, please ?

Theo

Posted by Andre Jas on 12-10-2006 19:18

Hi,

This is the best I can do.

Andr

Posted by Zeegers on 12-10-2006 20:25

Thanks.

I misjudged the photo in first instance.
It is not a Bibio, but a Dilophus.
Most/all species of Dilophus have a large second (autumn-)generation, so opposed to the genus Bibio this is not special.

Dilophus is recognized by short apical spines on tibia 1 and and additional row of spines halfway the tibia. Hardly possible to see in the picture, though.

Dilophus febrilis is the only common species in most parts of Europe.

Theo Zeegers

Posted by Andre Jas on 12-10-2006 20:51

Okay,

Thanks a lot Theo.

Andr