P. cyathiforme sp. n. (d holotype: Mount Coffee, Liberia) and P. malagasoides sp. n. (d holotype: Bendija, Liberia) are described and illustrated on the basis of single males in the collection of the United States National Museum. Descriptive notes are given on a male of P. glaucoideum Schmidt from Ibadan, Nigeria. Notes on colours of males of 15 African Pseudagrion species are added. They are accompanied by colour illustrations.