The biology of the insects Acanthoscelides obtectus and Zabrotes subfasciatus attacking stored beans is briefly described. Cultural and chemical control measures are indicated. (CIAT)Se describe brevemente la biologia de los insectos que atacan el frijol almacenado Acanthoscelides obtectus y Zabrotes subfasciatus. Se indican medidas de control cultural y quimico. (CIAT