Science & Nature • Insect

Fruit fly

Fruit fly is a common name for several two-winged insects in the orders Drosophilidae and Tephritidae.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Fruit fly is a common name for several two-winged insects in the families Drosophilidae and Tephritidae. The term includes small flies such as Drosophila as well as larger, often crop-damaging tephritid flies. In everyday use, it often refers to Drosophila melanogaster, a widely studied model organism in genetics.

Classification and naming

The name fruit fly is not taxonomically unique and can refer to insects in at least two fly families: Drosophilidae and Tephritidae. Drosophilidae are often called small fruit flies or vinegar flies, while Tephritidae are known as large fruit flies and include many agricultural pests.

Biology and life cycle

Fruit flies are two-winged insects that undergo complete metamorphosis through egg, larva, pupa, and adult stages. Their larvae develop in fruit, vegetation, or other organic material, feeding on the plant matter.

Agricultural importance

Many tephritid fruit flies are significant pests of fruits and vegetables. Their larvae damage crops and reduce agricultural yields, making them important targets for pest management.

Use in research

Drosophila melanogaster, commonly called the fruit fly, has been used extensively in genetics, development, physiology, and behaviour research. Its short life cycle and ease of cultivation have made it a standard laboratory organism.

Key facts

The name fruit fly covers multiple species and families, including Drosophilidae and Tephritidae.
Drosophila melanogaster is a widely studied model organism in genetics.
Some fruit fly species, especially in Tephritidae, are important agricultural pests.
Fruit fly larvae feed on fruit or other plant material during development.
Fruit flies undergo complete metamorphosis with egg, larva, pupa, and adult stages.

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Canadian context

Fruit flies are relevant in Canada through household nuisance control, orchard and crop pest management, and laboratory research using Drosophila as a model organism at Canadian universities and research institutions.

Frequently asked questions

What is a fruit fly?

Fruit fly is a common name for certain flies in the families Drosophilidae and Tephritidae that are associated with fruit or plant material.

Are all fruit flies the same species?

No. The term covers multiple species and even different families of flies.

What is Drosophila melanogaster?

Drosophila melanogaster is a small fly often called the common fruit fly or vinegar fly, and it is a major model organism in biology.

Are fruit flies pests?

Some species are major agricultural pests, especially in the family Tephritidae, while others mainly feed on rotting fruit and fermenting material.

Why are fruit flies used in science?

They are small, easy to breed, reproduce quickly, and have been used for over a century in genetics and developmental biology.

References

Encyclopaedia Britannica — https://www.britannica.com/animal/fruit-fly
Supports: Fruit fly as a common name for insects in Drosophilidae and Tephritidae; larvae feed on fruit or vegetative matter.
University of California Agriculture and Natural Resources — https://ipm.ucanr.edu/PMG/GARDEN/FRUIT/PESTS/fruitflies.html
Supports: Two fly families commonly called fruit flies and their life stages; pest relevance.
ScienceDirect — https://www.sciencedirect.com/topics/neuroscience/drosophila-melanogaster
Supports: Drosophila melanogaster as a widely used fruit fly in genetic research and model organism details.
South African National Biodiversity Institute — https://www.sanbi.org/animal-of-the-week/common-fruit-fly/
Supports: Common fruit fly identification, scientific classification, and association with Drosophila melanogaster.