Autumn Horse Fly vs Tarantula Hawk

Side-by-side species comparison

Attribute Autumn Horse Fly Tarantula Hawk
Scientific Name Tabanus autumnalis Pepsis grossa
Order Diptera Hymenoptera
Family Tabanidae Pompilidae
Size 16-22 mm 40-65 mm
Habitat Heathland Heathland
Diet Blood Feeders Predators
Regions Europe, North Africa, Western Asia North America, South America
Conservation Least Concern Least Concern

Autumn Horse Fly

A large greyish horse fly active in late summer and autumn. It has striking green-banded eyes and a persistent biting habit.

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Did You Know?

It is one of the few horse fly species that remains active well into October.

Tarantula Hawk

A giant wasp that hunts tarantulas. The female paralyzes a tarantula with her sting, drags it to a burrow, and lays an egg on it — the larva eats the spider alive.

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Did You Know?

The tarantula hawk has the second most painful sting of any insect — but the pain lasts only about 5 minutes. Scientists recommend just lying down and screaming.