Phrurolithus revolutus Yin et al., 2004 was originally described from the female holotype only. Here we describe the male for the first time, based on newly collected specimens from its type locality in Yunnan, China. Comparison of this species with the type species of Otacilia, O. armatissima Thorell, 1897 confirms that it should be transferred to the latter genus as Otacilia revoluta (Yin et al., 2004) comb. nov. Detailed figures and photos of both sexes are also given.