Comments: For reviews, see Crawford-Cabral (1966a, 1969, 1970, 1973, 1981a, b), Rosevear (1974), Coetzee (1977), Schlawe (1980a, 1981), Wozencraft (1984, 1989b), Gaubert et al. (2002b, 2003a, b, 2004). Synonyms for the species in this genus follow Gaubert (2003) and Gaubert et al. (2002a, 2003a, b). Gaubert et al. (2002b) suggested that subgenera within the genus should be abandoned