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.
Adults feed on nectar and pollen. Larva feed on organic matter. The eggs are laid in crevices near stagnant water. The adults drink nectar and the larva prey on aphids and scale insects. Preferred habitat is meadows and fields.