Parthenogenesis-not-reported
Guides
Acanthoscelides obtectus
Bean Weevil, Bean Bruchid, Dry Bean Weevil
Acanthoscelides obtectus is a small bruchid beetle and major pest of stored legume seeds, particularly common bean (Phaseolus vulgaris). Native to mountainous regions of northern South America, it has spread globally through grain shipments and now occurs on every continent except Antarctica. The species is notable for its ability to infest seeds both in the field and in storage, with larvae developing entirely within seeds while adults feed on pollen. Its economic impact stems from reduced seed quality, germination failure, and contamination of legume products.