Diptera.info

Thread subject: Diptera.info :: Sphaeroceridae

Posted by krafttho on 29-12-2015 10:36

Can someone ID this fly that I think is a Sphaeroceridae? Near the sea, south of Sweden, December 20. Best regards, Thomas

Posted by krafttho on 29-12-2015 10:36

Pic. 2. The fly is around 3 mm

Posted by krafttho on 29-12-2015 10:39

Similar to pictures I have seen of Crumomyia pedestris, but I do not know if there are other similar species.

Posted by John Carr on 29-12-2015 14:10

The only wingless European Sphaeroceridae I know of is Aptilotus paradoxus. Marshall (1999) gave a generic diagnosis here: http://www.biodiv...part/55699.

(Edit: Based on above comment Crumomyia pedestris is a wingless European Sphaeroceridae I do not know of. Looks similar, although reduced forms often converge on similar appearance.)

Edited by John Carr on 29-12-2015 14:13

Posted by Ectemnius on 30-12-2015 13:39

Hello,

This is indeed a Sphaeroceridae of the subfamily Copromyzinae. Specimens can be anything from nearly apterous to fully winged in some species. This looks very much like Crumomyia pedestris, however more species can have reduced wings. See:
http://www.aemnp...._2_535.pdf

Greetings,

Ectemnius

Posted by krafttho on 30-12-2015 20:55

Thanks for your comments!

Posted by Paul Beuk on 04-01-2016 21:40

this is Crumomyia pedestris.