Wasps parasitic on White butterflies

[Jonathan]

Is there anybody working on or know of any refs to a wasp called

Pteromalus puparum which parasitises White butterfly pupae. It's European
but maybe it ranges further afield.

Thanks for your help.

Jonathan

Jonathan Taylor
BBC Reference Library
Whiteladies Road
Bristol
BS8 2LR
England
Jonathan.Taylor at bbc.co.uk