Thread subject: Diptera.info :: Tachina ursina

Posted by Christine Devillers on 28-11-2007 22:47
#1

Picture taken in the "Fagne of Malchamps" in Belgium in april. It is a wet area. There were 3 of these Tachina.
Is it Tachina ursina?
Thank you

Edited by Christine Devillers on 11-02-2009 16:04

Posted by Christine Devillers on 28-11-2007 22:50
#2

Here is the picture

Posted by Christine Devillers on 28-11-2007 22:52
#3

Picture 2

Posted by Juergen Peters on 28-11-2007 23:15
#4

Hello, Christine!

Christine Devillers wrote:
Is it Tachina ursina?


I'm no expert, but I dare to call it Tachina lurida (typical spring species).

Posted by ChrisR on 29-11-2007 01:41
#5

Looks like Tachina ursina to me - white band on the anterior margin of tergite 5 :)

Posted by Zeegers on 29-11-2007 08:41
#6

Both are right,

it looks quite like lurida, but actually it's an rather unusually reddish ursina for the reaons mentioned by Chris.

Theo

Posted by Christine Devillers on 29-11-2007 09:33
#7

Thanks

I thought at ursina for the same reason than Chris, but I didn't know if it was enough.
In the keys: cheeks with black hairs, length of 3rd antennal segment...
It isn't necessary to look at all these details?

Posted by Zeegers on 29-11-2007 17:58
#8

You can look at other features, but it is not necessary.
Identifying flies from pictures requires features that are easily seen in pictures. The relative length of the 3 antennal segment can vary significantly with the angle of view and is therefore quite tricky.
The band of greyish dust is, in this case, always clearly visible and therefore very reliable.

Great pictures, by the way.


Theo

Posted by Christine Devillers on 29-11-2007 18:29
#9

Thanks Theo