Chal·cid fly Zool. One of a numerous family of hymenopterous insects (Chalcididæ. Many are gallflies, others are parasitic on insects.
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chalcid fly
n : any of various tiny insects whose larvae are parasites on
eggs and larvae of other insects; many are beneficial in
destroying injurious insects [syn: chalcidfly, chalcid,
chalcid wasp]