Elephant Mosquito vs Giant Robber Fly

Side-by-side species comparison

Attribute Elephant Mosquito Giant Robber Fly
Scientific Name Toxorhynchites rutilus Promachus fitchii
Order Diptera Diptera
Family Culicidae Asilidae
Size 8-12 mm 20-35 mm
Habitat Forests Meadows
Diet Predators Predators
Regions Eastern North America North America
Conservation Least Concern Least Concern

Elephant Mosquito

A large, iridescent blue-green mosquito whose adults do not bite. Larvae are predators of other mosquito larvae in tree holes.

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Did You Know?

It is studied as a biological control agent because its larvae devour disease-carrying mosquito larvae.

Giant Robber Fly

A large, bristly predatory fly with powerful grasping legs and a sharp proboscis. It ambushes prey in mid-air with remarkable speed and precision, including insects larger than itself.

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Did You Know?

Robber flies inject prey with saliva containing neurotoxins and digestive enzymes, liquefying the insides and then sucking them out.