Thread subject: Diptera.info :: Thereva
Posted by Juergen Peters on 13-08-2006 23:08
#1
Hello!
I found this beautiful
Thereva today near the forest here in Ostwestfalen/Germany. Can the species be determined from the photos? Thanks in advance!
Posted by Tony Irwin on 13-08-2006 23:51
#2
Hi Juergen
I wonder whether this might be a female
Thereva handlirschi. (Not a species I'm familiar with, but the description seems to fit.) This is only a suggestion - it would be best to wait until someone familiar with the central European species can confirm this before adding it, even as a temporary name.
Posted by Zeegers on 14-08-2006 16:21
#3
Hi Juergen and Tony,
The species looks very yellow indeed, which makes Tony's guess a good one. However, I can see only 1 pair of dorsocentral bristles on the thorax. If that is correct, the picture cannot represent handlirschi, since this species has 2 pairs of DC before scutellum.
Maybe Juergen can check on an original at higher resolution ?
Theo Zeegers
Posted by Juergen Peters on 14-08-2006 21:31
#4
Hello, Tony and Theo!
Thanks for your replies!
Zeegers wrote:
since this species has 2 pairs of DC before scutellum.
Maybe Juergen can check on an original at higher resolution ?
Below two uncompressed extracts from the photos. But I am not sure, whether they show that detail better...
Posted by Zeegers on 15-08-2006 11:16
#5
I can still see only one pair of DC.
But it is difficult to see, so I don't have a final opinion in this matter.
Sometimes we just cannot ID from fotos !
Theo
Posted by Juergen Peters on 15-08-2006 20:02
#6
Hello, Theo!
Zeegers wrote:
I can still see only one pair of DC.
But it is difficult to see, so I don't have a final opinion in this matter.
Sometimes we just cannot ID from fotos !
Thanks nevertheless!