Diptera.info

Posted by CerambyX on 29-12-2007 23:09

Hi,
Was checking my Sciomyzidae gallery and comparing with gallery on this site, and got little bit confused, because for me this one looks like Limnia unguicornis, but at the same time Euthycera species (fumigata, for example) look very similar. So is this Limnia or Eythycera, and what is the key difference on what I should look to identify these two genus?

Picture taken in Latvia, 11th of July, 2006, in the grass near small lake. Size as far as I remember ~7mm.

Thanks!

Ugis Piterans,
Latvia

Edited by CerambyX on 29-12-2007 23:35

Posted by Nosferatumyia on 29-12-2007 23:22

Ugis, this is certainly a female of Limnia unguicornis Scopoli, besides the presence of setulae on anepisternum and anepimeron, it has a peculiar wing pattern, rather pale compared to Euthycera, and a pair of gray microtrichichose vittae on mesonotum, which is the characyter of L. unguicornis.

Posted by CerambyX on 29-12-2007 23:33

Thank you Nosferatumyia, for your quick and very informative answer.
Don't have any Diptera identification keys available at the moment, so I can only try to compare photographs of different species, but it's quite a headache if you don't know where to look...

I had also idea about that darker wing patter for Euthycera, but definitely it isn't very precise method to judge only by coloring.
So thanks for giving some idea how to identify them. Thanks!
And a Happy New Year to everybody

Edited by CerambyX on 29-12-2007 23:34

Posted by jorgemotalmeida on 29-12-2007 23:43

"Ugis, this is certainly a female of Limnia unguicornis Scopoli, besides the presence of setulae on anepisternum and anepimeron, it has a peculiar wing pattern, rather pale compared to Euthycera, and a pair of gray microtrichichose vittae on mesonotum, which is the characyter of L. unguicornis."

SEE HERE - http://diptera.in...ad_id=8803
FOR
anepisternum - NUMBER 21
anepimeron - NUMBER 4

FOR Microtrichia and setulae (small setae) you can find an explanation here in the 7th post -->
http://diptera.in...ad_id=8790

mesonotum

header=[mesonotum] body=[The thorax is composed of three basic segments of which the second (mesothorax is the largest. The mesonotum is the dorsal part of the mesothorax and it constitutes most of the dorsal part of the thorax. It is composed of the prescutum (not differentiated in most Diptera, except for some Nematocera), the scutum and the scutellum.<br />
<br />
Image courtesy of Japan Drosophila Database (http://www.dgrc.kit.ac.jp/~jdd/bodyparts/index.html)<br /><img src='http://www.diptera.info/infusions/terms/images/mesonotum.gif' style='vertical-align:middle;' />] delay=[0] fade=[on]

vitta

(plural: vittae)

Edited by jorgemotalmeida on 30-12-2007 00:14

Posted by jorgemotalmeida on 29-12-2007 23:56

Head... you can see here: http://diptera.in...ad_id=9242
and here: http://diptera.in...ad_id=8809

Wings... here:
http://diptera.in...ad_id=9039
(I'm doing for the others... it will take a while. very soon I will dispose them.)

For legs is in preparation.

Edited by jorgemotalmeida on 30-12-2007 00:05

Posted by CerambyX on 30-12-2007 00:02

Wow!

That's fantastic! Will bookmark these pages right away! It's an invaluable information for a beginner like me!
Huge thanks Jorge!

Posted by jorgemotalmeida on 30-12-2007 00:13

try this too:
http://www.fauned...eNumerique
only in French and with some good coverage on morphology.