Thread subject: Diptera.info :: Which Syrphidae
Posted by Tanja on 04-10-2016 13:30
#1
Hi
Which Syrphida could that be? It is rather small (ca. 6 mm).
I found it in the Swiss Alps, 1350 m a.s.l. on the 4th of August.
I am looking forward to determination ideas.
Cheers,
Tanja
Posted by Tanja on 04-10-2016 13:32
#2
Tanja wrote:
Hi
Which Syrphida could that be? It is rather small (ca. 6 mm).
I found it in the Swiss Alps, 1350 m a.s.l. on the 4th of August.
I am looking forward to determination ideas.
Cheers,
Tanja
Posted by Paul Beuk on 06-10-2016 11:30
#3
I think
Melanostoma
Posted by Tanja on 09-10-2016 16:55
#4
Paul Beuk wrote:
I think Melanostoma
Could it also be a Platycheirus?
Edited by Tanja on 09-10-2016 18:22
Posted by Sundew on 10-10-2016 23:10
#5
A
Platycheirus male should have modified front legs with broad and flattened tarsi, which seems not to be the case here. (A few species don't, but their body colouration is different.) The antennae should be dark, not orange as in
Melanostoma. So the latter genus is more probable indeed. As the abdomen is rather broad and tergites 2-3 are no longer than they are wide, I’d vote for
M. mellinum.
Posted by Tanja on 22-10-2016 20:47
#6
Sundew wrote:
A Platycheirus male should have modified front legs with broad and flattened tarsi, which seems not to be the case here. (A few species don't, but their body colouration is different.) The antennae should be dark, not orange as in Melanostoma. So the latter genus is more probable indeed. As the abdomen is rather broad and tergites 2-3 are no longer than they are wide, I’d vote for M. mellinum.
Thank you for the answer!