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Sex ratio variation as a function of host size in Pseudacteon flies (Diptera: Phoridae), parasitoids of Solenopsis fire ants (Hymenoptera: Formicidae)


Sex ratio variation as a function of host size in Pseudacteon flies (Diptera: Phoridae), parasitoids of Solenopsis fire ants (Hymenoptera: Formicidae)



Biological Journal of the Linnean Society 66(2): 257-267



ISSN/ISBN: 0024-4066

DOI: 10.1006/bijl.1998.0265

Parasitism of Solenopsis saevissima and S. invicta by Pseudacteon tricuspis and P. litoralis was studied in the laboratory using insects captured in Sao Paulo, Brazil, in 1996. A pattern of sex ratio variation as a function of host size was seen, with more females arising from larger hosts.

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Accession: 003271158

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