40 CFR §180.1101

Parasitic (parasitoid) and predatory insects are exempted from the requirement of a tolerance for residues when they are used in accordance with good agricultural and pest control practices to control insect pests of stored raw whole grains such as corn, small grains, rice, soybeans, peanuts, and other legumes either bulk or warehoused in bags. For the purposes of this rule, the parasites (parasitoids) and predators are considered to be species of Hymenoptera in the genera Trichogramma, Trichogrammatidae; Bracon, Braconidae; Venturia, Mesostenus, Ichneumonidae; Anisopteromalus, Choetospila, Lariophagus, Dibrachys, Habrocytus, Pteromalus, Pteromalidae; Cephalonomia, Holepyris, Laelius, Bethylidae; and of Hemiptera in the genera Xylocoris, Lyctocoris, and Dufouriellus, Anthocoridae. Whole insects, fragments, parts, and other residues of these parasites and predators remain subject to 21 U.S.C. 342(a)(3).