Epicauta is a genus of beetles in the blister beetle family, Meloidae. The genus was first scientifically described in 1834 by Pierre François Marie Auguste Dejean. Epicauta is distributed nearly worldwide, with species native to all continents except Australia. Surveys have found the genus to be particularly diverse in northern Arizona in the United States. Few species occur in the Arctic, with none farther north than the southern Northwest Territory of Canada. This is one of the largest blister beetle genera, with about 360 described species as of 2011.