One of the prettiest creatures to visit Warwick Gardens has to be this wasp with the most fantastic name – Gasteruption jaculator. It is a parasitic wasp closely related to the ichneumon wasp, belonging to the Evanioidea family. They daintily dance around the flowers like fairies, stopping to feed on nectar. To us they are good fairies as they pollinate our plants, but to solitary bees and wasps they are BAD fairies!
Easily identified by the extremely long ovipositor, the female visits the nests of various solitary bees or wasps and pushes her ovipositor into the nest, depositing her eggs on or near to the eggs of the host. On hatching the young larvae will devour the grubs and supplies of pollen and nectar of its victim. The adults grow up to 10–17 millimetres.