CLOSED: number 3 for the bug files ID ?

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bonitin Gent, Belgium(Zone 8a) Oct 24, 2006

number 3 for the bug files ID ?

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Post #2845867
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wallaby1 Lincoln, United Kingdom(Zone 8a) Oct 25, 2006

Brachymeria is the closest I can find

http://galerie-insecte.org/galerie/html/INSECTA__Hymenoptera__Chalcididae.html


http://www.cs.umb.edu/~whaber/Monte/Par/Chal2.html

Post #2849027
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wallaby1 Lincoln, United Kingdom(Zone 8a) Oct 25, 2006

Some species of Brachymeria listed, you will have to click the Chalcididae link at the right

http://www.zsm.mwn.de/hym/chal/details.php?val_taxon=Brachymeria+podagrica+(Fabricius,+1787)

http://www.zmuc.dk/EntoWeb/collections-databaser/Hymenoptera/Chalcididae%20all.htm

This message was edited Oct 25, 2006 4:26 PM

Post #2849104
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bonitin Gent, Belgium(Zone 8a) Oct 25, 2006

Wallaby, thanks a lot for the links!
There is certainly some similarity but not to the extend to take away all doubts like you have noticed yourself.

I just found back my bug book (which was lost) and found an image which looks at first sight similar : Megachile centuncularis (fam.: Megachilidae). Not sure though!

I know there must be a lot of them in my garden because I cannot overlook the results of their activities (the neatly cut half-moon shaped holes in the leaves of various types of plants).

Post #2849378
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wallaby1 Lincoln, United Kingdom(Zone 8a) Oct 25, 2006

Leaf cutting would be a good clue, but there are all sorts around, some pics to compare

http://aramel.free.fr/INSECTES18ter-3.shtml

http://zoologie.umh.ac.be/hymenoptera/photo_album/10_Megachilidae/imagepages/image9.html

There is a lot of variation, the tail on yurs looks to be more pointed, I notice on the leaf cutting bee there seems to be an orange colour under the abdomen

http://users.skynet.be/fa213618/Megachile%20centuncularis.htm

Search for just Megachile, and there are different ones

http://aolsearch.aol.co.uk/image?query=Megachile++

http://www.ftp.funet.fi/pub/sci/bio/life/insecta/hymenoptera/apocrita/megachilidae/megachile/index.html







Post #2849463
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bonitin Gent, Belgium(Zone 8a) Oct 25, 2006

Wallaby,
Thank you so much for all the links.

This might turn out to be another difficult case. They all have similarities, but I didn't find a perfect match! Sigh..
It seems that the white stripes on the body of my leaf-cutting bee (?) are so clearly defined, while this is not the case in the pictures of the sites, I also didn't find one with such a pronounced pointed tail.

Post #2849556
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mollyrightmyer Arlington, VA(Zone 7a) Feb 11, 2007

This is a bee in the genus Coelioxys, which is a brood parasite on Megachile (also in the same family Megachilidae). It doesn't have lots of hair on the underside of the abdomen like the Megachile because it doesn't collect pollen.

Post #3177854
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bonitin Gent, Belgium(Zone 8a) Aug 15, 2007

Sorry mollyrightmyer, I only noticed your post now.
I think you're right about the genus Coelioxys.
After a google search I found a dutch site with the different species of that genus. The parasitic bees seem to be rare to very rare and some are even extinct.
There are only a couple of photo's there and the closest match I found could be Coelioxys conoidea.
Not sure though as the pictures are not very clear.
I would like to mark this solved and add it to the BF.
I didn't find an entrance for the genus Coelioxys.

http://www.wildebijen.nl/grote_kegelbij.html

Post #3858669
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