Diptera.info

Posted by Robert Heemskerk on 16-03-2007 00:32

hello flyforum,

I think this fly came from some willowflowers, it's got a lot of pollen.
When I look at the Anal-veins, they reach the border of the wing.
That meant that this is Anthomyiidae sp., isn't it?

And Further identification must be difficult from pictures..?

Posted by Robert Heemskerk on 16-03-2007 00:33

Anal veins reach the border of the wing

Edited by Robert Heemskerk on 16-03-2007 00:33

Posted by Robert Heemskerk on 16-03-2007 00:34

picture of the head

Edited by Robert Heemskerk on 16-03-2007 00:34

Posted by Robert Heemskerk on 16-03-2007 00:35

picture of the fly and the nice wheater

Edited by Robert Heemskerk on 16-03-2007 00:35

Posted by Nikita Vikhrev on 16-03-2007 11:37

Robert, I think Anthomyiidae female is correct. On 3-d image you can see interfrontal setas.
Nikita

Posted by Kahis on 17-03-2007 16:29

It's a female Egle. Very common and numerous on willow catkins. The protruding mouth edge and large palpi are characteristic for this genus among the few spring anthomyiid species.

Posted by Robert Heemskerk on 18-03-2007 11:33

Thank you Kahis.

The Dutch specieslist give me two Egle's;
1. Egle ciliata
2. Egle parva

Is it possible to identify this fly any further from this picture?

Robert :)

Posted by Kahis on 18-03-2007 12:11

It's probably E. ciliata.

That said, I'm very surprised you have only two species in the Netherlands :o This genus has never been too popular - it's frankly rather boring & the smaller species are very soft and don't keep very well when pinned - I guess you could find at least 2-3 additional species in the country.

Posted by Nikita Vikhrev on 18-03-2007 13:56

As far as I understand the situation Egle with 4 postsut dc (which is your case) may be either E. ciliata or E. brevicornis. According Fauna Europea both species do not recorded, for example, also for Russia, with means only that no material from Russia was so far investigated by proper expert...
Nikita

Posted by Robert Heemskerk on 18-03-2007 17:19

#10

I try to find the 4 postsut dc, but I am not familiar with these.
I cannot find them in my book.. so what are they? and where can I find these? :|

Posted by Kahis on 18-03-2007 20:01

#11

Postsutural dorsocentrals. These are the setae along the outer margin of the pair of pale stripes on the back of the fly. The suture is the weak transverse line crossing the thorax. There are 4 postsutural dc setae on this fly (ie 4 dorsocentrals behind the suture) - and 2-3 presutural dc, but those are not important in this particular case.