about 300 Bruchidius is a genus of beetles in the bean weevil subfamily (Bruchinae) of the leaf beetle family, Chrysomelidae.

[1] The larvae of these beetles often feed on plants of the legume family, Fabaceae.

The species Bruchidius siliquastri, for example, is a seed beetle named for its host, the Judas tree (Cercis siliquastrum).

[2] It lives on other Cercis species, as well.

[3] The genus can also be found on plants of the carrot and parsley family, Apiaceae, and the aster family, Asteraceae.