Due to confusion about the type species the Australian genus Ctenomeristis Meyrick has been misinterpreted. The genus is revised, comprising the type species Ctenomeristis almella (Meyrick), and Ctenorneristis subfuscella (Hampson), Ctenomeristis paucicornuti sp. n., Ctenomeristis albata sp. n. (present also in Papua New Guinea), Ctenomeristis shafferi sp. n. and Ctenomeristis sebasmia (Meyrick) comb. n. The genus Eremographa Meyrick syn. n. is synonymised with Ctenomeristis. A cladistic analysis and comprehensive illustrations draw attention to the remarkably homoplasious antenna and labial palpus in a clearly monophyletic group with uniquely derived male genitalia. Lectotypes are designated for Ceroprepes almella Meyrick and Odontarthria subfuscella Hampson.