Peracca (Robustacca) subgen. nov.: A–C P. (R.) nigrifrons sp. nov. female holotype: A face; B fastigium verticis in ventro-anterior view and C in lateral view. – D–I P. (R.) robustus (Karny, 1923) comb. nov. female holotype (D–H) and male from SE Pahang (I) D Face; E fastigium verticis in lateral view; F female subgenital plate; G habitus dorsal view; H habitus lateral view; I fastigium verticis. Abbreviations: lo lateral ocellus, mo medium ocellus.

  Part of: Ingrisch S (2020) New subgenera and species of Agraeciini (Orthoptera, Tettigoniidae, Conocephalinae) from South Asia found in historical insect collections. Evolutionary Systematics 4(2): 119-132.