πŸͺ° Flies

Fever Fly

Dilophus febrilis

About Fever Fly

A small, shiny black march fly with spiny front tibiae used for digging. It was once believed to cause fevers in humans, hence its common name, though it is completely harmless.

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Did You Know?

Its spiny front legs are used by females to dig into soil for egg-laying, an unusual adaptation among flies.

How to Identify Fever Fly

Fever Fly (Dilophus febrilis) belongs to the order Diptera, family Bibionidae. Adults typically measure 5-7 mm.

Fever Fly Habitat

Fever Fly is found in farmland habitats, particularly across Europe, Asia. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Fever Fly Diet and Feeding

Fever Fly feeds primarily on nectar from flowers. In doing so, it acts as an important pollinator, transferring pollen between plants and contributing to plant reproduction and biodiversity.

Where Is Fever Fly Found?

Fever Fly can be found in Europe, Asia, where it inhabits farmland environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Distribution Map

Where Fever Fly can be found

Is Fever Fly Dangerous?

Fever 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.

Fever Fly Role in Nature

Fever Fly plays an important role as a pollinator. By visiting flowers to feed on nectar or pollen, it transfers pollen between plants, aiding in reproduction and helping to maintain plant diversity. Pollinators are essential for the production of many fruits, vegetables, and wildflowers.

Seasonal Activity

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Peak activity Moderate Low / dormant

Frequently Asked Questions About Fever Fly

What does Fever Fly look like?

The Fever Fly typically measures 5-7 mm.

Where is Fever Fly found?

The Fever Fly is found in Europe, Asia and typically inhabits farmland environments.

What does Fever Fly eat?

The Fever Fly feeds primarily on nectar from flowers.

Is Fever Fly dangerous to humans?

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

What is an interesting fact about Fever Fly?

Its spiny front legs are used by females to dig into soil for egg-laying, an unusual adaptation among flies.

Cite This Page

APA:
InsectDiscover. (2026). Fever Fly (Dilophus febrilis). Retrieved from https://insectdiscover.com/insect/fever-fly

MLA:
"Fever Fly." InsectDiscover, https://insectdiscover.com/insect/fever-fly.