Goniagnathus (Epistagma) Emeljanov 1999

Emeljanov 1999. A key to genera of the subfamily Deltocephalinae s.l. (Homoptera, Cicadellidae) of Kazakhstan, Middle Asia, and Mongolia, with description of new genera and subgenera. Entomologicheskoe Obozrenie, 78(3) 1999: 589-609