Robber Fly vs Dark Soldier Beetle

Side-by-side species comparison

Attribute Robber Fly Dark Soldier Beetle
Scientific Name Promachus rufipes Cantharis obscura
Order Diptera Coleoptera
Family Asilidae Cantharidae
Size 15-30 mm 9-13 mm
Habitat Meadows Meadows
Diet Predators Pollen Feeders
Regions North America, Europe Europe
Conservation Least Concern Least Concern

Robber Fly

Aggressive aerial predators that catch other insects in flight. Inject prey with neurotoxic saliva that paralyzes and liquefies internal organs for consumption.

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Did You Know?

Robber flies are such efficient aerial predators that they have been recorded catching dragonflies, wasps, and even other robber flies in mid-air.

Dark Soldier Beetle

A dark-colored European soldier beetle often found on umbelliferous flowers. Its entirely dark elytra distinguish it from the more colorful soldier beetle species.

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Did You Know?

Larvae are velvety black and hunt small invertebrates among leaf litter throughout the winter months.