Hsiung. 1997. In Hsiung & D. K. M. Kevan. Three new species of Pyrgomorpha (Pyrgomorpha) cognata Krauss 1877 from Iran and Sudan-Somalia region (Orthoptera: Acridoidea: Pyrgomorphidae: Pyrgomorphini). Journal of Orthoptera Research (Jour. Orth. Res. ) 6:9
