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Biological control agents imported in the 1920s
Alysia manducator (Hymenoptera: Braconidae)
Chrysopa ramburi (Neuroptera: Chrysopidae)
Chrysopa sp. 1 (Neuroptera: Chrysopidae)
Chrysopa sp. 2 (Neuroptera: Chrysopidae)
Chrysopa sp. 3 (Neuroptera: Chrysopidae)
Chrysopa spp. (Neuroptera: Chrysopidae)
Chrysoperla oculata (Neuroptera: Chrysopidae) = Chrysopa oculata Say
Chrysoperla plorabunda (Neuroptera: Chrysopidae)
Coccidoctonus dubius (Hymenoptera: Encyrtidae)
Coccophagus gurneyi (Hymenoptera: Aphelinidae)
Coccophagus n. sp. (Hymenoptera: Aphelinidae)
Conwentzia psociformis (Neuroptera: Coniopterygidae)
Cryptolaemus sp. (Coleoptera: Coccinellidae)
Diomus sp. (Coleoptera: Coccinellidae)
Diplosis sp. (Diptera: Cecidomyidae)
Elis sp. (Hymenoptera: Tiphiidae)
Encarsia citrina (Hymenoptera: Aphelinidae)
Eupithecia pulchellata (Lepidoptera: Geometridae)
Eupithecia pyreneata (Lepidoptera: Geometridae)
Exochomus nigromaculatus (Coleoptera: Coccinellidae)
Habrolepis dalmanni (Hymenoptera: Encyrtidae)
Harmonia sp. (Coleoptera: Coccinellidae)
Inostemma boscii (Hymenoptera: Platygastridae)
Ithone fusca (Neuroptera: Ithonidae)
Lathrolestes luteolator (Hymenoptera: Ichneumonidae)
Leptomastix abnormis (Hymenoptera: Encyrtidae) = Leptomastidea abnormis (Girault)
Mellicta athalia (Lepidoptera: Nymphalidae) = Meltaea athalia, heath fritillary butterfly
Metaphycus lounsburyi (Hymenoptera: Encyrtidae)
Microphthalma michiganensis (Diptera: Tachinidae)
Microterys flavus (Hymenoptera: Encyrtidae) = Microterys nietneri (Motschulsky, 1859)
Microterys nietneri (Hymenoptera: Encyrtidae) = Microterys flavus
Ocytata pallipes (Diptera: Tachinidae)
Paraleptomastix sp. (Hymenoptera: Encyrtidae)
Platygaster demades (Hymenoptera: Platygastridae)
Pullus sp. (Coleoptera: Coccinellidae)
Scutellista caerulea (Hymenoptera: Pteromalidae) = Scutellista cyanea Motschulsky
Scymnus binaevatus (Coleoptera: Coccinellidae) = Nephus binaevatus (Mulsant)
Scymnus sordidus (Coleoptera: Coccinellidae) = Nephus sordidus (Horn)
Scymnus sp. (Coleoptera: Coccinellidae)
Sympherobius barberi (Neuroptera: Hemerobiidae)
Sympherobius californicus (Neuroptera: Hemerobiidae)
Sympherobius sp. (Neuroptera: Hemerobiidae)
Tetracnemus n. sp. (Hymenoptera: Encyrtidae)
Tiphia sp. (Hymenoptera: Tiphiidae)
Torymus chloromerus (Hymenoptera: Torymidae)
Triarthria setipennis (Diptera: Tachinidae)
Unidentified chalcid (Hymenoptera: Chalcidoidae)