Diptera.info

Posted by Dmitry Gavryushin on 23-06-2006 15:38

Much encouraged by discussion regarding T. trimacula I examined that location again this morning hoping to collect some specimens. Although it seems that sweeping didn't brought me more T. trimacula I was lucky enough to find more flies which IMHO belong to Pallopteridae.

First, P. saltuum without any doubts. 2 specimens, size 4-5mm.

Posted by Dmitry Gavryushin on 23-06-2006 15:41

The second fly. This one and all the rest, size around 4mm.

Posted by Dmitry Gavryushin on 23-06-2006 15:46

And the last one, with dark spots on wings.
More views available for all of the four.

Posted by Paul Beuk on 23-06-2006 15:48

I think the second is Tricholauxania praeusta, but it is difficult to see if there are really small setulae on R1.

Posted by Dmitry Gavryushin on 23-06-2006 15:58

Thanks Paul - it seems my family labels were a bit premature again.
Maybe I'll be able to check the details you need.

Posted by Jan Willem on 23-06-2006 18:23

#10

Hello Dima,

Dima wrote:

It seems my family labels were a bit premature again

Not entirely so. The first two pictures are indeed of a pallopterid! These are pictures of Palloptera saltuum (Temnosira saltuum if you like), a male. This species displays sexual dimorphism. Amongst other things the bristles are yellow in the males whereas these are black in the females.

Jan Willem

Posted by Paul Beuk on 23-06-2006 19:06

#11

I have not been paying attention either. I thought there were only two species here: two pictures of P. saltuum and a series of pictures of a second species. Not it appears that there are more species...

Tricholauxania praeusta third and fourth picture (not fully coloured) and last picture (fully coloured). Fifth and sixth picture probably a specie sof Meiosimyza (= Lyciella.

Posted by Dmitry Gavryushin on 23-06-2006 20:05

#12

Many thanks Jan and Paul,
Well I think that Lauxaniidae are not any worse than Pallopteridae

(for those who cares at all of cause).

Posted by Paul Beuk on 23-06-2006 22:05

#13

Black wrote:
Well I think that Lauxaniidae are not any worse than Pallopteridae

(for those who cares at all of cause).

When it comes to identifying them to species, they are worse. If only because there are so many more of them and so many similar ones...

Posted by Jan Willem on 24-06-2006 10:30

#14

Hi,

Paul wrote:
When it comes to identifying them to species, they are worse. If only because there are so many more of them and so many similar ones...

With exceptions like Tricholauxania praeusta which is an easy one.

Jan Willem

Posted by Dmitry Gavryushin on 24-06-2006 19:22

#16

I'll check, maybe there's more images with wing better visible than in this dorsal view...