Posted by Juergen Peters on 09-11-2010 00:05
#1
Hello!
Any chance to get a genus ID at least? I'm not even sure, if these two individuals are from the same species. 6-7 mm, from forest border, northwest Germany.
Posted by Stephen R on 09-11-2010 12:31
#3
Hi Juergen,
In Joke's absence I'll have a shot at this, but treat with caution! In the first picture we can see a long-haired arista, so I think the choice is between
Hydrophoria and
Hylemya. From the leg colours it should be either
Hydrophoria linogrisea or
Hylemya vagans/nigrimana (the females can't be separated).
You may be able to see in your photos whether the scutellum is completely covered with short hairs (
Hydrophoria) or there is at least a hair-free area at the base (
Hylemya). If it's
H. vagans/nigrimana there should also be no small hairs between the presutural acrostichals, but this may not be clearly visible.
If I had to place a bet, I think it would be on
Hydrophoria linogrisea, but I don't have enough experience for this to be of much use to you!
Good luck, Stephen :)
Edited by Stephen R on 09-11-2010 12:42
Posted by Juergen Peters on 10-11-2010 02:18
#4
Hi, Stephen!
Many thanks for your explanations. Very appreciated!
But I am afraid even on the uncompressed original photos it is not visible, whether the scutellum is covered with short hairs (too bad resolution). I can only see the larger setae.