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Parasitoids of the grapeleaf skeletonizer, Harrisina brillians Barnes and McDunnough (Lepidoptera: Zygaenidae) in northwestern Mexico
Authors:Luis Guerra-Sobrevilla
Institution:

aUniversidad de Sonora, Unidad Regional Norte, Caborca, Sonora, Mexico

Abstract:Nine species of parasitoids were collected from pupae of the grapeleaf skeletonizer, Harrisina brillians Barnes and McDunnough (Lepidoptera: Zygaenidae) in Caborca, Sonora in northwestern Mexico. The parasitoids detected and the percentage parasitization observed were: Ametadoria misella (Wulp), (Diptera: Tachinidae) 29.3%; Hockeria rubra (Ash.), and a species from the genus Euchalcidia (Hymenoptera: Chalcididae), plus five suspected species, all from the family Eulophidae, and a species from the genus Arachnophaga (Hymenoptera: Eupelmidae), 21.6%. Mortality due to unknown causes was 13.7%. In all, 64.6% parasitization and mortality was observed. The most abundant parasitoids were the five unidentified suspected species of Eulophidae, which corresponded to 46% of the total collected; the species from the genus Euchalcidia made up 31% of the total; the tachinid fly, Ametadoria misella comprised 15%; Hockeria rubra comprised 8%, and the species from the genus Arachnophaga comprised < 1%.
Keywords:Grapeleaf skeletonizer  Harrisina brillians  parasitoids  parasitization
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