Diptera.info

Posted by crex on 30-05-2006 21:03

Last one for today ...

Unknown diptera from midwest Sweden in may 2006. Sorry to bother you, but is it possible to determine this species?

Edit: Changed subject (Unknown diptera).

Edited by crex on 13-09-2007 22:21

Posted by Jan Willem on 30-05-2006 21:35

Hi Crex,

I would say Rhingia campestris (Syrphidae), but I know that there are other species of the genus Rhingia which I don't know at all. So let's wait for the experts.

Jan Willem

Posted by crex on 13-09-2007 21:56

Any confirmation on this blurry photo from the Syrphidae experts? In Sweden we have R. campestris, R. rostrata and R. borealis ...

Posted by Iolaire on 13-09-2007 22:14

Hi Crex,

It's most certainly not R. borealis for is hasn't got a short snout slightly pointed downwards. The main differences between R.campestris and R.rostrata are the slightly longer snout of campestris and the lighter (more red) legs of rostrata. The Rhingia in your picture has a long snout (slightly longer than the eye) and it's legs aren't red with only the upper part of the legs black(ish). This one has almost stripy legs. All this is, in my view, consistent with R.campestris.

Ps. there are, of course, more differences but you can't see them all in your pic.

Posted by Andrew Whittington on 13-09-2007 22:16

I would definitely go for R. campestris because of the lateral black line on the abdomen, which is lacking in R. rostrata. That said ... I am not familiar with R. borealis.

Posted by crex on 13-09-2007 22:17

I have searched the net and see that R. rostrata is very rare in Sweden and that it hasn't this dark legs. R. borealis seems to have a much darker abdomen and is darker overall.