![]() We postulated that by doing so Elytroleptus might incorporate the lycidic acid from their prey for their own defense. Among their mimics are species of the cerambycid beetle genus Elytroleptus, remarkable because they prey upon the model lycids. Species of Lycus commonly figure as models of mimetic associations. This compound, a novel acetylenic acid that we named lycidic acid, proved actively deterrent in feeding tests with wolf spiders and coccinellid beetles. We present evidence that North American species of the lycid genera Calopteron and Lycus are rejected by thrushes, wolf spiders, and orb-weaving spiders, and that they contain a systemic compound that could account, at least in part, for this unacceptability. ![]() Beetles of the family Lycidae have long been known to be chemically protected. ![]()
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