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| 1 | 2 |  » Stats |
Members: 50,148
Threads: 82,324
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Top Poster: glsammy (15,069)
| | Welcome to our newest member, pywacket4u | |  | 
25-10-2009, 08:21 PM
|  | Commander of the Wild Empire | | Join Date: Jan 2007 Location: South Northants
Posts: 3,289
| | | Hunchbacked fly
Stockgrove Country Park, Beds. On fence separating Scots Pines from meadow.
...or perhaps more likely hunchbacked "wasp".
Help with identification appreciated. 
Bruce  |
25-10-2009, 08:36 PM
|  | Commander of the Wild Empire | | Join Date: Jul 2009 Location: Barnsley
Posts: 1,345
| | | Re: Hunchbacked fly
Haven't a clue what it is but its a cracking photo ! |
25-10-2009, 08:54 PM
|  | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Hunchbacked fly
Evening Bruce,
Yes, it's a wasp. Possibly from the Cynipidae family of Gall Wasps - the antennal segmentation seems good for that, though a shot focussing more on them would be good! Also the large thorax fits.
Others may hold other opinions - I'll await with interest.
Take care, Jason  |
25-10-2009, 10:48 PM
|  | Member of the Wild Empire | | Join Date: Oct 2009 Location: Berks/South Oxon
Posts: 434
| | | Re: Hunchbacked fly
It's a great photo - well done But, as always, I'd need some different angles to do an ID - do you have a dorsal shot of the thorax?
Jason is close - it is a cynipoid wasp but it isn't a gall-former - I think it is a parasitoid in the family Figitidae, and it reminds me of a common parasitoid of hoverflies with a superb name - Callaspidia defonscolombei
My reasoning is that I don't know any gall-forming cynipoids with such a petiolate gaster (a stalk on the abdomen) and figitids often have a very rough/rugose thorax with a raised and highly ornate scutellum (the bit at the back of the thorax). |
26-10-2009, 09:47 AM
| | Commander of the Wild Empire | | Join Date: Jan 2007 Location: South Northants
Posts: 3,289
| | | Re: Hunchbacked fly
Shenk1 - Thanks for your encouraging comment - much appreciated .
Jason - Thanks for confirming that I have a wasp. This was a very active insect and I only managed to take a few shots when it paused for a second (at most  ) and none show the antennae any more clearly.
Chris - Thanks for your help in progressing us towards an id - I do appreciate the problems. Unfortunately this wasp was on the top of a tall fence post so it was not possible to get a dorsal shot. On the plus side I've added 2 new waspish words to my vocab, namely petiolate and gaster (checked on Google of course ).
....and it would be good if it was Callaspidia defonscolombei ....for the name alone!
Bruce |
26-10-2009, 09:54 AM
| | Member of the Wild Empire | | Join Date: Oct 2009 Location: Berks/South Oxon
Posts: 434
| | | Re: Hunchbacked fly
Just a quick followup - I have checked the online FaunaEuropaea database here and it seems that Dr John Noyes at the NHM is the group coordinator so he might be able to give you a better idea if the identification is correct |
26-10-2009, 05:30 PM
| | Commander of the Wild Empire | | Join Date: Jan 2007 Location: South Northants
Posts: 3,289
| | | Re: Hunchbacked fly
Thanks for that suggestion Chris, I'll do as you recommend and get back with any feedback received.
Bruce | | |
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