The leafhopper fauna of the Neotropical region is still poorly known. Approximately 5,000 species are described, but there can easily be 5,000–10,000 undescribed species in the
region, and perhaps many more (Freytag & Sharkey, 2002). Peru has one of the most megadiverse leafhopper faunas in the Neotropical region with currently 634 species of
which only nine species of Portanini are recorded
Male pygofer, in lateral view, subrectangular; posterior margin acute; with slender and acute preapical ventral process turned dorsally. Aedeagus apex with pair of long and slender divergent processes curved posteroventrally and with apices acute.
The species epithet is a homage to the Inca goddess Mama Quilla, considered a defender of women. The species epithet is treated as a noun in apposition.
Collectors: Juan Grados Arauco
Habitat: Lowland rainforest
Sampling Protocol: Pan trap
Elevation: 225 m
Country: Peru
Province/State: Madre de Dios
Region/County: Tambopata
Sector: Condenado
Exact Site: Albergue Refugio Amazonas
Lat/Lon: -12.875, -69.4097
Identifier: Jádila Santos Prando
Identification Method: Morphology and Genitalia
Identifier Institution: Universidad Nacional Mayor de San Marcos, Museo de Historia Natural
Phylum: Arthropoda
Class: Insecta
Order: Homoptera
Family: Cicadillea
Genus: Matacephalus
Species: Metacephalus mamaquilla
