Two new species of the genus Lebistina Motschulsky, 1864 are described: Lebistina rehagei Assmann, Starke & Terlutter, sp. n., type locality: Kenya: north of Ngomeni. Members of this macropterous species are distinguished from all other known species of the genus by their elytral coloration pattern, large body length, shape of the median lobe of the aedeagus, and shape of the mentum with one tooth showing two small tips. Lebistina petersae Assmann, Drees & Zumstein, sp. n., type locality: Kenya, Tsavo East National Park. Members of this macropterous species differ from all other Lebistina species by their elytral coloration, short body length, shape of the median lobe of the aedeagus, and shape of the mentum with its sinuosity and two blunt teeth. We provide photographs and discuss the characters, including the shape of the mentum which deviates from the classical delineation of the genus Lebistina.