Thread subject: Diptera.info :: Melanostoma sp. or Platycheirus sp. ?
Posted by Stephen on 19-09-2006 01:26
#1
This was not a good day for the poor Syrphid, who crossed paths with a Jumping Spider.
Looking at Internet pictures, my best effort at determining the genus of this fly was either Melanostoma or Platycheirus. ID help would be appreciated.
I found these two along the bank of a stream, in an area with woods and meadows both. West Virginia USA, 9 May 2005. Length not recorded.
Posted by conopid on 19-09-2006 10:24
#2
Hi
I don't think it is Melanostoma or Platycheirus as it appears to have a yellow scutellum (all Bachinae have black scutellums). It is one of teh Syrphinae, but I can't suggest any better than that as I only know the UK fauna.
Cheers
Posted by Stephen on 19-09-2006 10:53
#3
Thanks for your help, Nigel. I'm adding one more photo, from a slightly different angle, that shows a wing better, and better shows the center of the dorsal surface of the abdomen.
Posted by Gisela Merkel-Wallner on 19-09-2006 23:03
#4
Hello,
for me it looks like a kind of Parasyrphus sp.
Gisela
Posted by Stephen on 20-09-2006 18:17
#5
Thanks very much, Gisela!
Posted by conopid on 20-09-2006 19:58
#6
Yes I would go with Parasyrphus or Melangyna if in Europe. Don't know whar else you get in N America?
Posted by Gerard Pennards on 20-09-2006 23:32
#7
Hmmm,
Well, if you ask me I would vote for one of the American Syrphus species!
Greetings
Posted by Stephen on 21-09-2006 13:49
#8
Nearctic genera of subfamily Syrphinae are: Paragus, Toxomerus, Baccha, Xanthandrus, Melanostoma, Platycheirus, Chrysotoxum, Syrphus, Epistrophe, Eupeodes, Ocyptamus, Pseudodoros, Allograpta, Sphaerophoria. This is from Arnett, American Insects, 2000.