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Hi!

I know these are difficult to get to species from photos but I will try. ;)

14th April, on my door on a cold dull day, near Lincoln UK. Size was maybe 7-8mm

From searching the site I have found that Chaoborus pallidus has rings on the femora and tibia, I can't see anything obvious on the tibia but there appears to be rings near the apex of the femora.

http://diptera.in...#post_6417

We only have 4 species, C. crystallinus; flavicans; obscuripes; pallidus

Colour would rule out C. crystallinus, and if the rings are actually rings then it seem it would be C. pallidus. Can anyone say for sure?

Janet :)