The bean weevils (Coleoptera: Chrysomelidae: Bruchinae) of Atlantic Canada.

the bruchinae fauna of Atlantic canada is surveyed. three species, Bruchidius villosus (Fabricius), Callosobruchus chinensis (Linnaeus), and Callosobruchus maculatus (Fabricius), are newly recorded in Atlantic canada. Acanthoscelides obtectus (say) is newly recorded from insular Newfoundland, and Megacerus discoideus (say) is newly recorded from Prince Edward Island for a total of seven new provincial records. the distributions of all six species in the region are mapped, and keys to identification of species are provided, as are colour habitus photographs. the bionomics of species is discussed, and dates of first detection of adventive species are provided. this is an unusual family of beetles in Atlantic canada in that five of the six species are adventive, Megacerus discoideus being the only native bruchine found in the region. Four of the adventive species, Callosobruchus chinensis, Callosobruchus maculatus, Bruchus pisorum (Linnaeus), and Acanthoscelides obtectus are pests of dried stored pulses, although the latter two can survive in the wild in canada, and are occasional (sometimes serious) pests of garden and crop plants in the Fabaceae.