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Unisexual broods and sex ratios in a polyembryonic encyrtid parasitoid (Copidosoma sp.: Hymenoptera)

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Summary

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.

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Authors and Affiliations

  1. Department of Entomology, The University of Queensland, 4072, Brisbane, Queensland, Australia

    G. H. Walter & A. R. Clarke

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  1. G. H. Walter
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  2. A. R. Clarke
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Walter, G.H., Clarke, A.R. Unisexual broods and sex ratios in a polyembryonic encyrtid parasitoid (Copidosoma sp.: Hymenoptera). Oecologia 89, 147–149 (1992). https://doi.org/10.1007/BF00319027

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  • DOI: https://doi.org/10.1007/BF00319027

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