Meloe americanus is a type of blister beetle (Meloidae) found in North America. It is most relevant to the fields of agriculture and veterinary medicine. Adult beetles feed on different types of plants, which cause crop damage. They also release a fluid containing a chemical that is toxic, and at high concentrations lethal, to mammals. The first instar larvae are uniquely active and mobile, utilizing phoresy and parasitism to feed and mature through their developmental stages.

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