Ancylonycha Dejean, 1833 has precedence over Holotrichia Hope, 1837, which is considered as the valid name for the genus. Reversal of Precedence cannot be used because Ancylonycha was used as valid after 1899 (with Holotrichia as synonym) at least once by Saylor (1942).
Bousquet, Y. & Bouchard, P. (2013). The genera in the second catalogue (1833–1836) of Dejean's Coleoptera collection. <em>ZooKeys.</em> 282: 1-219.