WRIGHTI species-group
Gigantodax adleri Moulton
Adler, Currie & Wood (2004, notes on general polytene features): USA
Gigantodax cypellus Wygodzinsky & Coscarón
Hirai (1987c, description, idiogram, low-resolution photo of chromosome I; as G. ‘sp-5’): Ecuador
Pinto-Sánchez, Miranda-Esquivel & Muñoz de Hoyos (2005, chromosomal characters in phylogeny, idiogram): [Colombia]