onion fly

noun

Definition of onion fly

1 : a dipterous insect of the family Anthomyiidae whose larva feeds on onion bulbs especially : an originally European insect (Hylemya antiqua) now widely distributed in America
2 : an insect (Tritoxa flexa) of the family Otitidae with habits like those of the onion fly

called also black onion fly

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“Onion fly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onion%20fly. Accessed 27 Jan. 2021.

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