Thread subject: Diptera.info :: Sciomyzidae - Euthycera alaris?

Posted by Filex on 02-02-2008 21:42
#1
Hi

Yesterday I attemped to classify the pictures of Sciomyzid flies I made last year. I have a question regarding some flies I think that belong to Euthycera genus.

First two pictures were shot in Palam?s, Catalonia, NE Spain in a Quercus suber wood at the beginning of June, while the last two were shot in deciduos Quercus robur wood in Monforte de Lemos, Galicia NW Spain at the end of July.

I think the first two may belong to Euthycera alaris, while I am not so sure about the last two, which provisionally I have considered to belong to the same species. Since I am a freshman with Sciomyzids, I appreciate any help to determine them.

Regards

Miquel

Posted by Filex on 02-02-2008 21:42
#2
Second picture
Edited by Filex on 02-02-2008 21:44

Posted by Filex on 02-02-2008 21:43
#3
Third picture

Posted by Filex on 02-02-2008 21:44
#4
Fourth and last pciture

Posted by Stephane Lebrun on 02-02-2008 22:17
#5
They are two different species. I think first one is indeed E. alaris.
Second species could be E. cribrata, I'll need to see the frons clearly to be sure.

Posted by Nikita Vikhrev on 02-02-2008 22:37
#6
What Stephane wrote as usualy has sence, but I've never had in my hand South-West European Euthycera and I have my personal doubts about situation with this genus...
So, I'm not ready to go futher than Euthycera.
Nikita

Posted by Filex on 02-02-2008 23:14
#7
Thanks a lot!

This is the most frontal view that I have from the second species.

Posted by Filex on 02-02-2008 23:36
#8
After surfing a bit, I have found this picture of Euthycera cribrata (see link below). I think it matches the second species, which would corroborate Stephane's opinion.

http://flickr.com/photos/9909228@N05/2198791139/

Posted by Stephane Lebrun on 03-02-2008 00:02
#9
Miquel, Euthycera cribrata, as typical character, doesn't have any dark spot at base of its anterior orbital setae (dark spot just goes round like shown on this picture).
Sorry, but I have difficulties to appreciate with your pictures, and like Nikita said, we have to be wise with this genus.

Posted by Filex on 03-02-2008 08:47
#10
Sorry, it is my fault. I attatch a magnification.
Edited by Filex on 03-02-2008 08:49

Posted by Stephane Lebrun on 03-02-2008 12:17
#11
OK, it should be E. cribrata.

Regards.