Illustrated keys to North-Western European species of Microterys Thomson and Western European species of Discodes Förster (Hymenoptera, Encyrtidae), natural enemies of soft scale insects

It's the aim of this project to enable amateur entomologists, and broadly trained entomologists, to identify North-West European Microterys Thomson species and identify Western European species of Discodes Förster, by using the projected illustrated keys + diagnoses to identity these parasitic wasp genera.