Length ~2mm. Wings fully developed. Head & throrax metallic dark green. Abdomen (gaster) dorsally, usually unicoloured or with a reddish spot in the basal half, rarely the whole basal half reddish. 

Callitula pyrrhogaster has vestigial wings and more red on the abdomen. 

Unless identified by a recognised expert, detailed photos of key ID features required. 

Grassland, meadows and agricultural fields. 

All year. 

Dipteran parasitoid.

Unknown

Unknown, not often recorded due to identification difficulty.