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Epicauta diversicornis and related species form a closely-knit group which can be defined as possessing the following characters in the male. Posterior tibim with a row of short teeth internally at the apex. First two antennal segments enlarged, denuded except for scattered erect setm, and shiny, the first not excavated externally at the tip. Anterior tibim with a single spur and anterior tarsi with the first segment flattened, usually shiny and expanded. All of the known species in the group are moderately slender and almost uniform in width (see figure in Champion, 1892). Except for size and color there is great similarity in all the species. None has been seen less than ten millimeters long or more than twenty. Females can be known by the distinctive shape and usually can be placed by color and locality. All the species have a small

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