| Aplectana Railliet & Henry, 1916 |
| Aplectana hamatospicula Walton, 1940 |
| Aplectana hoffmani Bravo-Hollis, 1943 |
| Aplectana incerta Caballero, 1949 |
| Aplectana itzocanensis Bravo-Hollis, 1943 |
| Aplectana mexicana (Caballero, 1933) Ballesteros-Márquez, 1945 |
| Aplectana mexicana Walton, 1940 |
| Aplectana uaehi Falcón-Ordaz, Monks, Pulido-Flores & Rodríguez-Amador, 2014 |
| Aplectana waltoni (Skrjabin & Schikhobalova, 1951) Skrjabin, Schikhobalova & Lagodovskaja, 1961 |
| Cosmocerca Diesing, 1861 |
| Cosmocerca acanthurum Falcón-Ordaz, Winfield-Pérez, Mendoza-Garfias, Parra-Olea & Pérez-Ponce de León, 2007 |
| Cosmocerca dukae Holl, 1928 |
| Cosmocerca parva Travassos, 1925 |
| Cosmocerca podicipinus Baker & Vaucher, 1984 |
| Cosmocercella Steiner, 1924 |
| Cosmocercella anothecae Baker & Adamson, 1977 |
| Cosmocercella diaglenae Mata-López, Guillén-Hernández & León-Règagnon, 2008 |
| Cosmocercella haberi Steiner, 1924 |
| Cosmocercidae Railliet, 1916 |
| Cosmocercinae Railliet, 1916 |