title: Unisexual broods and sex ratios in a polyembryonic encyrtid parasitoid (Copidosoma sp.: Hymenoptera).
abstract: We examined brood sex ratios of an undetermined species of Copidosoma. Most broods (65%) were unisexual, with a greater proportion of female broods. Some mixed broods contained extremely small proportions of wasps of the opposite sex. Our results imply that the female-biased sex rations in this species cannot be explained by local mate competition theory.
authors.affiliation: Department of Entomology, The University of Queensland, 4072, Brisbane, Queensland, Australia.
authors.forename: G H
authors.initials: GH
authors.lastname: Walter
authors.affiliation: Department of Entomology, The University of Queensland, 4072, Brisbane, Queensland, Australia.
authors.forename: A R
authors.initials: AR
authors.lastname: Clarke
keywords: Copidosoma; Hymenoptera; Parasitoid; Polyembryony; Sex ratio