Ten cowpea cultivars were evaluated for their resistance toClavigralla tomentosicollisStal. in the screenhouse and in mesh cages, then seeds were analysed in the laboratory for concentration of sugar, crude protein and tannic acid. A general correlation of the resistant parameters examined and the chemical composition of the cultivars showed a positive relationship between the crude protein content and the resistance of the cultivars to the bug. The significance of these correlations is discussed.