Successful Laboratory Mating of Apanteles congregatus,1 a Parasite of the Tobacco Hornworm, Manduca sexta2,3

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Abstract
Although males attempted courtship of females, Apanteles congregatus (Say) failed to copulate in laboratory cages, probably because of crowding and milling by the aggregation of insects and the positive phototactic response of the adults that drew them to the top of the cage. When 3×5-inch cards were placed horizontally in the cage to provide more surface area for copulation, and a 3-inch-wide opaque band was placed at the perimeter of the glass top to keep the wasps away from the sides of the cages, mating was achieved.

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