Forty-four species of Phaneropterinae are recorded from Dzanga-Ndoki National Park in the Central African Republic. Eight species collected within the park are described as new to science: Phlaurocentrum morettoi n. sp., P. paratuberosum n. sp., P. elegans n. sp., Myllocentrum raggei n. sp., Poreuomena sanghensis n. sp., Cestromoecha longicerca n. sp., C. magnicerca n. sp., and Goetia purpurea n. sp. An additional new species from Guinea is described from specimens preserved in the Museo Nacional de Ciencias Naturales of Madrid, Poreuomena huxleyi n. sp. Eurycorypha stylata Stål, 1873 is recorded for the first time from Burkina Faso and Brycoptera lobata Ragge, 1981 from Ivory Coast. The following synonyms are established: Enochletica affinis Bolívar, 1906 is synonymized with Enochletica ostentatrix Karsch, 1896, Poreuomena gladiator Bolívar, 1906 is synonymized with Poreuomena forcipata Sjöstedt, 1902, and Azamia doriae (Griffini, 1906) is synonymized with Azamia biplagiata Bolívar, 1906. In addition, morphological characters of previously unknown females of Phaneroptera maculosa Ragge, 1956 and Eurycorypha canaliculata Karsch, 1890, and males of Myllocentrum stigmosum (Karsch, 1896) and Cestromoecha crassipes (Karsch, 1890) are described. The presence of titillators in four African genera (Gelotopoia, Brycoptera, Phlaurocentrum and Azamia) is recorded for the first time. In the genus Zeuneria, a sub-equally bilobed, dorsally curved, dorso-lateral abdominal appendage is described for the first time. This new structure apparently delimits an abdominal gland of unknown function on the second tergite.