A taxonomic review of the genus Longgenacris You Li, 1983 is provided, the taxonomic position of the genus is discussed briefly and clarified; the original placement of the genus in the subfamily Melanoplinae is confirmed. Type species of the genus Fruhstorferiola Willemse, 1922 is redescribed and new synonymy is proposed: Fruhstorferiola tonkinensis (Willemse, 1921) = Longgenacris rufiantennus Zheng et Wei, 2003, syn. nov.
Keywords: Orthoptera, Acrididae, Melanoplinae, Longgenacris, Fruhstorferiola, new synonymy, China, Vietnam.