Description of a new species of Braconidae, Monoctonus allisoni (Hymenoptera : Braconidae : Aphidiinae), and discussion of the aphid-parasitoid guild for Nasonovia spp. (Hemiptera : Aphididae) in northwestern United States

摘要

A new species of aphid parasitoid, Monoctonus allisoni Pike and Star, is described from Washington. It is found in association with Nasonovia (Eokakimia) wahinkae (Hottes) (Hemiptera: Aphididae) on pale larkspur, Delphinium glaucum Watson, in a montane forest setting. This is the first native Monoctonus in North America known to attack Nasonovia spp. A key to the parasitoid guild of Nasonovia is provided.