Kevan, D. K. M. , Akbar & Y. C. Chang. 1971[1970]. The concealed copulatory structures of the Pyrgomorphidae (Orth. Acridoidea). Part III. Tribes Chapmanacridini, Ichthiacridini, Ichthyotettigini, Orthacridini, Popoviini and Nereniini. Eos, Revista españo
