Thasycles is a genus of leaf beetles in the subfamily Eumolpinae. It is endemic to New Caledonia. For a long time it was treated as a synonym of Dematochroma, until it was reinstated as a valid genus in 2022.
↑Chapuis, F. (1874). "Tome dixième. Famille des phytophages". In Lacordaire, J.T.; Chapuis, F. (eds.). Histoire naturelle des Insectes. Genera des coléoptères. Vol.10. Paris: Librairie Encyclopédique de Roret. pp.i–iv, 1–455.