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Diptera > Tachinidae

Epalpus signifer

(Early Tachinid Fly)

One of the first insects out in the spring. Often visit dandelion and common chickweed flowers.

The only known host is the caterpillar of a species of owlet moth (Noctuidae) in the genus Lithophane. – Kaufman p.310

4 April 2020
Mating pair observed for a few minutes. Other males tried to join in. I scared them away while taking a picture. Not sure how long mating lasted.
Latah County