Length 1-2mm.  Wings either fully developed or rudimentary. Head and thorax varying from green through bronze-green to bronze or coppery bronze. Median area of propodeum 1-5 to 2-1 times as broad as long. Gaster varying from circular to oval. Male head with sinuose sulci, variable in pattern. 

Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.

Summer-autumn.

Parasitoid of Gall Midges, especially Mayetiola spp. on Gramineae.

Common and widespread.

Under recorded.

Graham, MWR de V. (1969) The pteromalidae of north-western Europe (Hymenoptera: Chalcidoidea). Bull. Br. Mus. nat. Hist. (Ent.) Suppl. 16.