Thread subject: Diptera.info :: Couple of small Syrphids

Posted by Juergen Peters on 09-06-2007 05:47
#1
Hello!

I have never seen such flies like this couple of only 7-8 mm long ones in our garden yesterday (Ostwestfalen/Germany). After searching a little bit I think, they could belong to genus Paragus. Is that correct? Thanks!

Posted by amalia_raluca on 09-06-2007 08:09
#2
Eumerus sp.

Posted by Juergen Peters on 09-06-2007 12:31
#3
Hello, Amlia!

amalia_raluca wrote:
Eumerus sp.


Ah, thanks! I had an Eumerus here in the garden already on May 28, but that lacked the distinct thorax stripes:

Posted by caliprobola on 09-06-2007 23:10
#4
if you look closely you can see has 2 stripes on the thorax too. the different angle makes them not that clear and in old specimens this dust stripes can become less clear too.

Posted by Juergen Peters on 10-06-2007 00:40
#5
Hello!

caliprobola wrote:
if you look closely you can see has 2 stripes on the thorax too.


Yes, but quite faint. I was not sure whether that indicated another species/genus or just a worn condition.

Posted by caliprobola on 10-06-2007 01:27
#6
for determination to species level you should examine the legs very carefully and maybe the male genitalia also.

Posted by Juergen Peters on 10-06-2007 01:44
#7
Hello!

caliprobola wrote:
for determination to species level you should examine the legs very carefully and maybe the male genitalia also.


Yes, I have read that Eumerus cannot be determined after a photo (but that's all I have). There are 16 species here in Germany according to "Entomofauna Germanica".