When handled, adult Pseudoxycheila tarsalis Bates were observed to release a secretion from their pygidium that was distasteful to human subjects. Chemical analysis indicated that the secretion contained substituted benzene compounds that are known chemical defenses in tiger beetles. These findings support the hypothesis that P. tarsalis is aposematic and a potential Müllerian mimic of stinging mutillid wasps.
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1 June 2001
Chemical Defenses in the Tiger Beetle PSEUDOXYCHEILA TARSALIS Bates (Carabidae: Cicindelinae)
Tom D. Schultz,
J. Puchalski
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