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Which Syrphidae
Tanja	#1 Posted on 04-10-2016 13:30
Member Location: Posts: 38 Joined: 24.08.16	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


Tanja	#2 Posted on 04-10-2016 13:32
Member Location: Posts: 38 Joined: 24.08.16	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


Paul Beuk	#3 Posted on 06-10-2016 11:30
Super Administrator Location: Posts: 19208 Joined: 11.05.04	I think Melanostoma Paul - - - - Paul Beuk on https://diptera.info


Tanja	#4 Posted on 09-10-2016 16:55
Member Location: Posts: 38 Joined: 24.08.16	Paul Beuk wrote: I think Melanostoma Could it also be a Platycheirus? Edited by Tanja on 09-10-2016 18:22


Sundew	#5 Posted on 10-10-2016 23:10
Member Location: Posts: 3890 Joined: 28.07.07	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.


Tanja	#6 Posted on 22-10-2016 20:47
Member Location: Posts: 38 Joined: 24.08.16	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!