Meaning & use

spider fly

noun·Academic

Last updated

The common name for any of the small, hump-backed flies of the family Acroceridae, whose larvae are internal parasites of spiders.

See it in a sentence

Entomologists found several spider fly larvae inside the abandoned spider egg sac.

The spider fly's unusual body shape helps it locate and parasitize its host.

A note on using this word

Despite the name, spider flies do not resemble spiders; the name refers to their parasitic relationship with spiders during the larval stage.

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