Descriptions of the following new species reared from seeds of various Vachellia species (Fabaceae: Mimosoideae: Acacieae) are presented: Bruchidius horridus sp. nov. from V horrida (L.) Willd., B. quadrispinosus sp. nov. from V. xanthophloea (L.) Willd., B. tumidulus sp. nov. from V seyal (Del.) P.I.H. Hurter, V nilotica subulata (Vatke) Kyal. & Boatwr and V. lahal (Steud. & Hochst. ex. Benth.) Kyal. & Boatwr., all from Kenya, and B. spathiger sp. nov. from V. etbaica Hayne, V. karroo Schweinf. and V. tenuispina Verdoorn from Kenya, Zimbabwe, and the Republic of South Africa, respectively.