Scriber, J. M. 1994. Climate legacies and sex chromosomes: latitudinal patterns of voltinism, diapause and host-plant selection in 2 species of swallowtail butterflies at their hybrid zone. Pages 133-171 in H. V. Danks, ed. Insect Life-Cycle Polymorphism: Theory, Evolution and Ecological Consequences for Seasonality and Diapause Control. Kluwer Academic, Dordrecht, Netherlands.
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