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REARING THE BLACK HORNED TREE CRICKET, OECANTHUS NIGRICORNIS (ORTHOPTERA: GRYLLIDAE)

Published online by Cambridge University Press:  31 May 2012

Paul D. Bell
Affiliation:
Department of Zoology, Erindale College, University of Toronto, Mississauga, Ontario L5L 1C6

Abstract

Black horned tree crickets, Oecanthus nigricornis (Walker), were continuously reared for the first time in the laboratory. Optimum rearing conditions per unit effort involved 2 months at −5 °C to terminate egg diapause, and subsequent incubation of eggs from infested raspberry cane segments at 27 °C and 45% relative humidity. Eggs began hatching in 2 weeks, and second generation eggs were obtained within 2.5 months. The best survival from egg to adult was 55%. The possibility that male tree crickets provide a nutritional investment in their progeny is discussed.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1979

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