Publilia concava, commonly known as the concave blister beetle, is a species of insect belonging to the family Meloidae. It is characterized by its small size, measuring around 1 cm in length, and its distinct concave shape. The body of Publilia concava is typically black or dark brown, with a shiny appearance. These beetles are found in various regions of North America and are known to feed on the flowers and leaves of plants.