Ahmad & Kamaluddin 1990. Redescription of type species of Schyzops Spinola, S. aegyptiaca (Lefebvre) and a new genus for S. orientalis Kamaluddin and Ahmad (Hemiptera: Pentatomidae: Phyllocephalinae) with a key to the world species and their cladistic analysis. Proceedings of Pakistan Congress of Zoology, 10 1990: 195-208