This is the largest genus in the family Eulophidae with nearly 1,000 species described worldwide and over 100 UK species. Very difficult to identify to species level. 

Unless identified by a recognized expert, explain how the specimen was identified and include photos of key features. 

Parasitoids with a very wide range of host insects. 

Common.

Unknown.

https://keys.lucidcentral.org/keys/v3/eulophidae_parasitoids/