Thread subject: Diptera.info :: Anthomyiidae: Pegomya sp.

Posted by Tony T on 21-08-2007 01:07
#1
20 August 2007, New Brunswick, Canada. Suburban garden. Legth: 7 mm.
I'm thinkimg Sciomyzidae
Edited by Tony T on 20-08-2008 00:46

Posted by jorgemotalmeida on 21-08-2007 01:12
#2
this is not sciomyzid...

Posted by Paul Beuk on 21-08-2007 07:27
#3
Muscidae...

Posted by Tony T on 21-08-2007 14:29
#4
Thanks Jorge & Paul. I must show more respect for muscids, I thought they were all non-descript grey flies.

Posted by Paul Beuk on 21-08-2007 14:37
#5
Have a look in the Gallery and you will see some nice examples not fitting your previous concept of Muscidae. Pfft

Posted by Kahis on 21-08-2007 16:00
#6
O suspect this one is in fact an anthomyiid...

Posted by Nikita Vikhrev on 21-08-2007 16:43
#7
Tony, could we see more hind legs?

Posted by Tony T on 22-08-2007 13:34
#8
Looked at Muscid page - some attractive flies; I'm always learning.Sad
Surely not another "damned anthomyiid" in another "damned genus"Wink
To photograph a hind leg I would have to remove one, relax it, and flatten it. Could you tell me what you are looking forSmile

Posted by Nikita Vikhrev on 22-08-2007 18:20
#9
The choise is between Pegomya, Thricops, Phaonia...
Well:
1. Is vien R4+5 setulose basally?
2. How many pd on t3?
3. Is there small v seta on very base of hind basytarsus?
4. How long vein A?
5. Is scutellum fine hairy ventrally?

Posted by Tony T on 22-08-2007 20:23
#10
Thanks, I wish I hadn't askedSad
Will check out all 5, once I work out what a pd on t3 is.
Tabanids are so easyGrin

Posted by Nikita Vikhrev on 22-08-2007 20:26
#11
GrinGrinGrin

Posted by Paul Beuk on 22-08-2007 20:39
#12
pd = posterodorsal, meaning posterodorsal setae.
Edited by Paul Beuk on 22-08-2007 20:42

Posted by Tony T on 24-08-2007 01:50
#13
Nikita Vikhrev wrote:
The choise is between Pegomya, Thricops, Phaonia...
Well:
1. Is vien R4+5 setulose basally?
2. How many pd on t3?
3. Is there small v seta on very base of hind basytarsus?
4. How long vein A?
5. Is scutellum fine hairy ventrally?


1 No
2 4 or 5, see diagram
3 No
4 Reaches wing margin
5 No

Posted by Nikita Vikhrev on 24-08-2007 07:39
#14
Nice Job, TonyGrin
5. If 2 strong setae on middle of your diagram is pd - than correct answer is 2pd + 2ad (last (3-d) pd - (pre)apical).
Anyway your diagram is very usefull - it shows "Angthomyiidae type" on t3
Along with other points it seems to my that Kahis was right - Anthomyiidae, probably Pegomya.
Kahis?
Nikita

Posted by Kahis on 24-08-2007 09:13
#15
Yes, I agree, Kahis was right as usual Wink
Edited by Kahis on 24-08-2007 09:13

Posted by Tony T on 24-08-2007 18:11
#16
Nikita Vikhrev wrote:
Nice Job, TonyGrin
5. If 2 strong setae on middle of your diagram is pd - than correct answer is 2pd + 2ad (last (3-d) pd - (pre)apical).
Anyway your diagram is very usefull - it shows "Angthomyiidae type" on t3
Along with other points it seems to my that Kahis was right - Anthomyiidae, probably Pegomya.
Kahis?
Nikita

OK, 2pd and 2ad, didn't realize there was a 3-d pd:Pfft
Saw Paul's ref. to pd, thought I understood it and then forgot all about the ad'sSad
With all my fancy photo equipment thought that I should be able to get a decent photo; seems OK but not entirely satisfied.
Thank you all for your comments.

Posted by Nikita Vikhrev on 24-08-2007 18:38
#17
3. Is there small v seta on very base of hind basytarsus?

and we can see this seta on your photoGrin

Posted by Paul Beuk on 24-08-2007 20:14
#18
The correct spelling would be basitarsus, often also named metatarsus but officially named as first tarsomere.