Souza, SP; Takiya, DM; Felix, M 2017. Two new Metacephalus DeLong & Martinson, 1973 species (Hemiptera: Cicadellidae: Portanini) from Brazil and proposed synonymy with Paraportanus Carvalho & Cavichioli, 2009 -
ZOOTAXA 4281 1 176 DOI: 10.11646/zootaxa.4281.1.16

Kramer, JP 1961. New Venezuelan leafhoppers of the subfamilies Xestocephalinae and Neocoelidiinae (Homoptera: Cicadellidae) -
PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON 74 235-239