M. A.  Jäch, ?Descriptions of two new species of Ancyronyx Erichson (Insecta: Coleoptera: Elmidae)?, Annalen des Naturhistorischen Museums in Wien (Ser. B), vol. 105, no. 2003, pp. 389-395, 2004.

M. A.  Jäch, ?Ancyronyx Erichson: new faunistic records, and description of a new species from Sulawesi (Indonesia) (Coleoptera: Elmidae)?, Koleopterologische Rundschau, vol. 73, pp. 255-260, 2003.