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POPULATION DYNAMICS OF TELENOMUS FARIAI (HYMENOPTERA: SCELIONIDAE), A PARASITE OF CHAGAS’ DISEASE VECTORS: VII. OVIPOSITION BEHAVIOR AND HOST DISCRIMINATION

Published online by Cambridge University Press:  31 May 2012

Carlos Bosque
Affiliation:
Centro de Ecologia, Instituto Venezolano de Investigaciones Cientificas, Apartado 1827, Caracas 101, Venezuela
Jorge E. Rabinovich
Affiliation:
Centro de Ecologia, Instituto Venezolano de Investigaciones Cientificas, Apartado 1827, Caracas 101, Venezuela

Abstract

Oviposition and post-oviposition behavior of Telenomus fariai Costa Lima, when parasitizing the eggs of Triatoma phillosoma pallidipennis Stål, is described. Like other egg parasites T. fariai marks hosts by rubbing the ovipositor against the host and transferring a water soluble pheromone (chemical nature unknown) to its surface. Females that had never parasitized largely ignored the mark. Females that had parasitized generally did not oviposit on a marked host. The mark was fully effective for at least 3 days after being applied. The function of egg marking by T. fariai is discussed.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1979

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