Diptera.info :: Family forums :: Syrphidae
Who is here? 1 guest(s)
 Love parade !
|
|
| pat_der2003 |
Posted on 07-09-2007 17:53
|
|
Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
is it possible to call those Syrphidae "Eristalis arbustorum" or they are only Eristalis sp ? loire-atlantique, France, july 30 2007. pat_der2003 attached the following image:  [42.42Kb] |
 |
|
| pat_der2003 |
Posted on 07-09-2007 17:54
|
|
Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
the female :
pat_der2003 attached the following image:  [79.02Kb] |
|
|
|
| conopid |
Posted on 08-09-2007 14:45
|
 Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Probably E arbustorum - the face does not appear to have a dark stripe down its centre.
Edited by conopid on 08-09-2007 14:45 Nigel Jones, Shrewsbury, United Kingdom |
|
|
|
| pat_der2003 |
Posted on 10-09-2007 08:09
|
|
Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
Thank you !! ;-) |
|
|
|
| Menno Reemer |
Posted on 10-09-2007 08:44
|
|
Member Location: Posts: 343 Joined: 10.06.04 |
I'm afraid I have to disagree. The very small pterostigma indicates that it is E. nemorum (= interrupta). And in males E. arbustorum the 3rd tergite usually has larger yellow markings. Besides, this behaviour is typical for Eristalis nemorum. E. arbustorum doesn't do things like this. |
|
|
|
| conopid |
Posted on 10-09-2007 21:25
|
|
Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
I think you may be right, as the stigma does appear to be sharply defined. However I find that the orange markings vary considerably in both species. I am sure that I have seen E arbustorum exhibitng this behaviour, or perhaps I should be making a much closer inspection of courting pairs (or triples)? What have others found? Nigel Jones, Shrewsbury, United Kingdom |
|
|
|
| pat_der2003 |
Posted on 15-09-2007 13:00
|
|
Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
here is a triples ... (but i can't say if it is the same species !) thanks to both of you ! 
pat_der2003 attached the following image:  [44.13Kb] |
|
|
|
| conopid |
Posted on 15-09-2007 17:48
|
|
Member Location: United Kingdom Posts: 1039 Joined: 02.07.04 |
Oh lovely shot and the facial stripe is clear, so that is E interruptus.
Nigel Jones, Shrewsbury, United Kingdom |
|
|
|
| pat_der2003 |
Posted on 17-09-2007 08:29
|
|
Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
thank you !  |
|
|
|
| Jump to Forum: |