Micreubrianax Pic (Coleoptera: Psephenidae) is reestablished as a valid genus. The name ”Microeubrianax” is regarded as an incorrect subsequent spelling and thus unavailable in the sense of the International Code of Zoological Nomenclature. The genus Micreubrianax is revised taxonomically, and 4 species, M. flabellicornis (Pic), M. bellus sp. nov., M. siamensis sp. nov., and M. nepalensis sp. nov., are included. A lectotype is designated for M. flabellicornis.