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Sixteen taxa in the genus Vigna were compared for susceptibility to attack by Callosobruchus rhodesianus (Pic.) under laboratory conditions. Ovipositional response, adult emergence and their development periods differed significantly between the species. Although oviposition took place on all the Vigna taxa at varying levels, the bruchid was unable to develop successfully on four of the 16 taxa Investigated. V. vexiUata var. angustifolia, V. vexillata var. vexillata, V, oblongifolia and V. luteola were resistant to attack. Resume-La susceptibility de seize especes de haricot du genre Vigna a l'infestation par le charancon Callosobruchus rhodesianus a ete £tudiee au laboratoire. L'oviposition, l'eclosion des oeufs ainsi que la durie totale du developpement ont varie en fonction de l'espece de haricot. Bien que l'oviposition a iti enregistree pour toutes les especes, quatre ont cependant empeche tout developpement ulterieur. Les especes V. vexillata var. angustifolia, V. vexillata var. vexillata, V. oblongifolia and V. luteola se sont montries resistantes a l'attaque de ce charancpn.