Callosobruchus is a genus of beetles in the family Chrysomelidae, the leaf beetles. It is in the subfamily Bruchinae, the bean weevils. Many beetles in the genus are well known as economically important pests that infest stored foodstuffs. C. maculatus has also been studied in the field of reproductive biology because of the sexual conflict that occurs between mating male and female. The genitalia of the male is covered in hard spines that injure the female during copulation, and the female has a habit of kicking the male during the process. Species include: