Abstract
We analyzed the behavioral responses of the ants Camponotus rufipes and Solenopsis geminata towards all instars of Dione junio and Abananote hylonome. We also analyzed ant behavior towards hexane extracts of larvae and extracts of the spines and neck glands of the fifth instars of both species and identified the chemical compounds present. Larvae of both species were repellent to ants from the first instar onward. Later instars survived ant attacks better than earlier instars. The spines and neck glands of the larvae influenced the behavior of C. rufipes. The chemical compounds contained in the hexane extracts of whole first and fifth instars and in the spines and neck glands of fifth instars were principally carboxylic acids and terpenes. Further bioassays confirmed the repellent effect of some of these acids toward ants.
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Osborn, F., Jaffe, K. Chemical Ecology of the Defense of Two Nymphalid Butterfly Larvae Against Ants. J Chem Ecol 24, 1173–1186 (1998). https://doi.org/10.1023/A:1022494802266
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DOI: https://doi.org/10.1023/A:1022494802266