P. E. Stüben, A. Schütte, H. López, and J. J. Astrin, “Molecular and morphological systematics of soil-inhabiting Cryptorhynchinae of the genus Acallorneuma and the tribe Torneumatini (Coleoptera: Curculionidae), with description of two new species”., contrib.entomol., vol. 66, no. 2, pp. 169–199, Dec. 2016, doi: 10.21248/contrib.entomol.66.2.169-199.