Fulbright JL, Pike KS 2007: A new species of Trioxys (Hymenoptera: Braconidae: Aphidiinae) parasitic on the bird cherry-oat aphid, Rhopalosiphum padi (L.) (Hemiptera: Aphididae) in the Pacific Northwest. Proceedings of the Entomological Society of Washington 109: 541-546.
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Fulbright JL, Pike KS 2007: A new species of Trioxys (Hymenoptera: Braconidae: Aphidiinae) parasitic on the bird cherry-oat aphid, Rhopalosiphum padi (L.) (Hemiptera: Aphididae) in the Pacific Northwest. Proceedings of the Entomological Society of Washington 109: 541-546.