Of, relating to, or designating a wasp of the family Proctotrupidae (or, formerly, the superfamily Proctotrupoidea), which comprises small parasitoids of insects (especially beetles and fungus gnats) and spiders.
In relation to the superfamily, superseded by proctotrupoid.
A proctotrupid wasp.
Mid 19th century. From scientific Latin Proctotrupes (also Proctotrypes), genus name + -id, after scientific Latin Proctotrupidae (also Proctotrypidae), family name.