In total 146 species of acridid grasshoppers & locusts belonging to 65 genera in five families under the superfamily Acridoidea. Out of these, two genera Sohanra and Poekilomorpha, and 11 species, viz., Coptotettix spinatus, Hedotettix variegatus, H. mingoraensis, Paratettix femofasciatus, Ergatettix crasipes aff., E. crasipes bengalensis, Dericorys nushkiensis, Sohanra cylindrica, S. spathulata, Kirmania immaculata, Poekilomorpha fasciata are new to science. In addition, 49 species and one family Eumastacidae have been recorded for the first time from Pakistan. The characters of the family group have not been given due to their easy availability in literature, but keys for both higher and lower taxa have been constructed. Only the deviations from the published description and the new characters, if any, of all genera and species are also included. The new species and allotypes have been described in detail. Measurements (max. length and width) of different parts, such as body, pronotum, tegmina and hind femur alongwith illustrations of various taxonomically important parts are also given.