Tribe Thagriini
The Coelidiinae have been extensively studied by M.W. Nielson and the Thagriini were covered by Nielson (1977, 2013). Representation of Thagriini in the regions covered by this package is restricted to Indonesia and New Guinea. No species of this tribe have been found in Australia or New Zealand. Nielson (1977) notes that "Leafhoppers of the tribe Thagriini resemble robust issid or orgerine fulgoroids in general habitus and vary in size from 4 to 10mm. Many species are brightly coloured, but the majority are ochraceous or fuscous with small irregular shaped markings on the elytra. Sexual dimorphism is apparent among several species." (Nielson 1977).
Members of this tribe can be differentiated from Tharrini by the structure of the aedeagus and by the different shape of the subgenital plate which, in Tharrini, is elliptical, subglobular or subquadrate but which, in Thagriini, is long and very narrow. In both tribes, the subgenital plate has the base differentiated from the rest of the plate (described as "segmented subbasally" by Nielson) which differs from the plate of the Coelidiini, the only other tribe of Coelidiinae found in the region, which has the plate entire. Nielson (2013) provided keys to the species of both Taharana and Thagria and discussed the relationship between clypellus configuration and geographical origin.