The parasitoid fly Aplomya confinis (Fallén, 1820) of 7mm, from the family Tachinidae (Diptera), parasitizes caterpillars of different species from the family Lycaenidae. In this video this parasitoid parasitizes a caterpillar of the Common Blue (Polyommatus icarus). This tachinid glues its egg on the body of the caterpillar. In one day the larvae (maggot) penetrates the skin and develops inside the body of the caterpillar.
Identified by Dr. Hans-Peter Tschorsnig