Thread subject: Diptera.info :: Colourful wasp

Posted by Dmitry Gavryushin on 25-06-2006 03:22
#1

June 24, 2006.
Collected by sweeping on the edge of our town park.
Size 5mm, moved fast, never attempted to fly.
Could anyone please suggest at least family.

Posted by ChrisR on 25-06-2006 10:50
#2

Looks like a parasitic wasp - superfamily Chalcidoidea, family most likely to be Pteromalidae... any more would require John Noyes at the BM(NH), London because Pteromalidae seems to be the 'dumping' family ... anything that doesn't fit another family goes into Pteromalidae! ;)

If you are interested in keying them out you first need to confirm the family and I think that is still best done with "The Hymenoptera" by Ian Gauld and Barry Bolton. This is a really useful book that covers the whole order with keys to family at least.

If you are happy it is a pteromalid then you need "Illustrated key to West-Palearctic Genera of Pteromalidae" by Zdenek Boucek and Jean Yves Rasplus. This is a nice book but the illustrations are not as beautiful as your photos - they are purely line-drawings and SEM photos of body parts to aid the keying process. ;)

Lovely photos by the way. Do you collect these insects and then photograph them in a small 'studio' at home? And what lens/flash equipment are you using? :D

Posted by cthirion on 25-06-2006 12:46
#3

12 antennal segments.......why not.....Cleptidae?

Posted by ChrisR on 25-06-2006 15:30
#4

You could be right cthirion - well done ... now I am just trying to work out how I got my ID so wrong! :o

Posted by Dmitry Gavryushin on 25-06-2006 17:58
#5

Many thanks Chris and cthirion,
My best guess initially was Chrysididae, it bent its head downwards (without turning into a ball), yet I never saw a Chrysididae like this. Now I also think it resembles a Cleptes sp.

Posted by ChrisR on 25-06-2006 20:31
#6

I don't think Cleptes are very commonly met in the countryside. Ironically, I caught a few Cleptes a few years ago but they were in a Malaise trap ... and somehow they don't look as good when they are pickled!! :D

Posted by Dmitry Gavryushin on 26-06-2006 08:43
#7

There's a friend of mine who studies Chrysididae, so there's a good chance we'll learn the exact ID soon :).

Posted by Paul Beuk on 26-06-2006 09:10
#8

View an image here: http://internt.nh...31_W_1.jpg.

In my experience, you see them very little but they can suddenly turn up regularly in Malaise traps. Interesting to see Chris' remark above.

Posted by Dmitry Gavryushin on 26-06-2006 09:42
#9

Thanks Paul, I've also found that classical picture by Curtis.

Posted by Jan Willem on 26-06-2006 12:39
#10

Hi Dima,

A friend of mine (Theo Peeters) identified your specimen as a female of Cleptes semiauratus (Chrysididae: Cleptinae).

Jan Willem

Posted by Dmitry Gavryushin on 26-06-2006 14:00
#11

Great, thank you Jan, so it's settled!

Posted by Robert Nash on 28-06-2006 17:47
#12

Only to add http://www.chrysis.net/index_en.php is a nice site devoted to Chrysididae (from Weblinks Other Insects) Robert

Edited by Robert Nash on 28-06-2006 17:48