Without these insects to pollinate our native plants the black bear and tortoise would have nothing to eat because the saw palmetto and the gopher apple would go without producing any fruit and eventually die off. The adult frequents fields and open meadows in search of nectar.
Larva are parasitic on solitary bees.
The female follows a solitary bee to her nest, waits for the bee to leave, then lays a single egg in the tunnel. The adult drinks nectar. Preferred habitat is meadows, fields, and bare ground. The larva are parasitic and prefer robber fly larvae, but also prey on bees, wasps, and ants. Preferred habitat is meadows and fields.