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Of, relating to, or designating a wasp of the superfamily Proctotrupoidea, which includes proctotrupids (in some schemes), platygasterids, and other small parasitoids of insects and spiders.
A proctotrupoid wasp.
Early 20th century; earliest use found in Science. From scientific Latin Proctotrupes + -oid, after scientific Latin Proctotrupoidea, superfamily name.