Thread subject: Diptera.info :: ( family=?)Scathophagidae Gimnomera
Posted by Steve Pelikan on 28-11-2009 17:45
#1
Keys as Agromyzid (Sc complete, both sc- and h- breaks in costa).
Edited by Steve Pelikan on 25-01-2010 02:41
Posted by Steve Pelikan on 28-11-2009 17:46
#2
.
Posted by Steve Pelikan on 28-11-2009 17:47
#3
...and wing.
Sorry for all the pictures --- I'm not very good at interpreting photoraphs always wishing I could grab the thing and turn it just a little bit...
Posted by Paul Beuk on 30-11-2009 16:14
#4
The impression I have is that of a Scathophagidae.
Posted by viktor j nilsson on 30-11-2009 23:26
#5
So do I. But it is quite understandable sometimes that Scatophagids end up as acalyptrates, as the typical calyptrate characters are least pronounced in this family.
Posted by Steve Pelikan on 01-12-2009 05:02
#6
Thank you both very much. That's a great suggestion that makes sense and that I'll follow up on immediately.
I'm sure everyone understands how a fly I that can't be place is a terrible worry... so all will understand my gratitude.
Posted by Nosferatumyia on 01-12-2009 06:59
#7
At least this fly has typycally calyptrate and scatophagide dorsal setae on tarsi
Posted by Steve Pelikan on 10-12-2009 20:18
#8
Thanks again for the help. I now think this is a Scathophagid (pedicel w/complete dorsal seam, gr. ampulla faintly present). The fly is only 4mm long which worried me until I learned that there are actually leaf mining scathophagids such as Paralleloma Becker, which this fly could be. I haven't been able to find any images of the genus on the WEB.
Posted by Stephane Lebrun on 02-01-2010 23:08
#9
Please, check for
Gimnomera tarsea (Scathophagidae).
Posted by Steve Pelikan on 04-01-2010 02:29
#10
Thanks!
Gimnomera works well, though the fly lacks pre-acrostichal hairs called for in my key (Nearctic Diptera). Otherwise the match is very good... all the way to the dark edges on the terga. And the photo in Dr Stuart G. Ball's key to British Scathophagids looks very good except for the overall color. Perhaps a different species: we don't seem to have
G. tarsea here (central U.S.A.), but there are several species here and I now have great hopes that the genus is correct.
Posted by Stephane Lebrun on 04-01-2010 06:57
#11
Oops, I didn't realize it was from USA. It is very likely another species (if not another genus).
Edited by Stephane Lebrun on 04-01-2010 06:58
Posted by Steve Pelikan on 04-01-2010 07:27
#12
No, I really you've got the genus right. The hairs could well be rubbed off (several bristles on scutellum are missing too) and everything else seems correct.
I apologize for not marking the location!
Posted by Steve Pelikan on 25-01-2010 02:44
#13
Seems to be
Gimnomera incisurata J.R. Malloch 1920
type location is just 200 miles W of where this fly was.
Thanks everyone!