πŸͺ° Flies

Hornet Robber Fly

Asilus crabroniformis

Near Threatened (declining in northern Europe)

About Hornet Robber Fly

Europe's largest robber fly, a hornet mimic with a yellow-and-brown body that hunts dung beetles on grazed pastures. Females lay eggs in animal dung where larvae develop as predators.

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Did You Know?

It specifically hunts dung beetles, and its larvae develop as predators inside cow pats and horse droppings.

How to Identify Hornet Robber Fly

Hornet Robber Fly (Asilus crabroniformis) belongs to the order Diptera, family Asilidae. Adults typically measure 18-28 mm.

Hornet Robber Fly Habitat

Hornet Robber Fly is found in grasslands habitats, particularly across Europe, North Africa. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Hornet Robber Fly Diet and Feeding

Hornet Robber Fly is a predatory species that actively hunts and feeds on other insects and small invertebrates. As a predator, it helps control populations of pest species and maintains ecological balance.

Where Is Hornet Robber Fly Found?

Hornet Robber Fly can be found in Europe, North Africa, where it inhabits grasslands environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Distribution Map

Where Hornet Robber Fly can be found

Is Hornet Robber Fly Dangerous?

Hornet Robber Fly is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.

Hornet Robber Fly Role in Nature

Hornet Robber Fly serves as a natural predator, helping to control populations of other insects. Predatory insects are valuable in both natural ecosystems and agriculture, where they reduce the numbers of pest species without the need for chemical pesticides.

Seasonal Activity

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Peak activity Moderate Low / dormant

Frequently Asked Questions About Hornet Robber Fly

What does Hornet Robber Fly look like?

The Hornet Robber Fly typically measures 18-28 mm.

Where is Hornet Robber Fly found?

The Hornet Robber Fly is found in Europe, North Africa and typically inhabits grasslands environments.

What does Hornet Robber Fly eat?

The Hornet Robber Fly is a predator that hunts and feeds on other insects and small invertebrates.

Is Hornet Robber Fly dangerous to humans?

The Hornet Robber Fly is generally harmless to humans. It does not bite or sting and poses no significant health risk.

Is Hornet Robber Fly endangered?

The Hornet Robber Fly is currently classified as Near Threatened (declining in northern Europe) by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.

What is an interesting fact about Hornet Robber Fly?

It specifically hunts dung beetles, and its larvae develop as predators inside cow pats and horse droppings.

Cite This Page

APA:
InsectDiscover. (2026). Hornet Robber Fly (Asilus crabroniformis). Retrieved from https://insectdiscover.com/insect/hornet-robber-fly

MLA:
"Hornet Robber Fly." InsectDiscover, https://insectdiscover.com/insect/hornet-robber-fly.