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1 May 2011 Distribution, Species Composition, and Incidence of Egg Parasitoids of the Forest Tent Caterpillar (Lepidoptera: Lasiocampidae), During a Widespread Outbreak in the Canadian Prairies
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Abstract

Egg bands of the forest tent caterpillar, Malacosoma disstria Hübner, were sampled across a wide area of the Canadian prairie provinces during a large-scale outbreak in 1989 and 1990 to examine the incidence and distribution of egg parasitoids (Hymenoptera). Data on the parasitoid species found and the incidence and frequency of parasitism in three habitat types is presented. Three species of egg parasitoids were recovered, Telenomus clisiocampae Riley (Scelionidae), Ooencyrtus clisiocampae (Ashmead) (Encyrtidae), and Baryscapus malacosomae (Girault) (Eulophidae). Differences in the number of species occurring per egg band and the percent of parasitism were found among habitat types. These differences are correlated to the amount of spumaline cover on egg bands, which also varied among habitat types.

© 2011 Entomological Society of Canada
Daryl J. Williams and David W. Langor "Distribution, Species Composition, and Incidence of Egg Parasitoids of the Forest Tent Caterpillar (Lepidoptera: Lasiocampidae), During a Widespread Outbreak in the Canadian Prairies," The Canadian Entomologist 143(3), (1 May 2011). https://doi.org/10.4039/n11-009
Received: 6 December 2010; Accepted: 1 February 2011; Published: 1 May 2011
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