Compsilura concinnata (tachinid fly; order Diptera) is a parasitoid native to Europe that was introduced to North America in 1906 to control invasive populations of the exotic gypsy moth (Lymantria dispar), which primarily infests forests.

Pupae, the life stage in insects when undergoing transformation, are brown, 6.5 mm long and oval shape.

Adults have a white face and a thorax containing four black stripes and reach up to 7.5 mm long.

After emerging from a host, its white maggot forms a smooth, reddish brown case (a puparium) around itself.

[14] Compsilura concinnata has a negative impact on many species of Lepidoptera native to North America.