| Bovicola Ewing, 1929 |
| Bovicola (Bovicola) Ewing, 1929 |
| Bovicola (Bovicola) bovis (Linnaeus, 1758) |
| Bovicola (Bovicola) caprae (Gurlt, 1843) |
| Bovicola (Bovicola) limbatus (Gervais, 1844) |
| Bovicola (Bovicola) ovis (Schrank, 1781) |
| Eutrichophilus Mjöberg, 1910 |
| Eutrichophilus mexicanus (Rudow, 1866) |
| Geomydoecus Ewing, 1929 |
| Geomydoecus (Geomydoecus) Ewing, 1929 |
| Geomydoecus (Geomydoecus) actuosi Price & Hellenthal, 1981 |
| Geomydoecus (Geomydoecus) alcorni Price & Emerson, 1971 |
| Geomydoecus (Geomydoecus) alleni Price & Emerson, 1971 |
| Geomydoecus (Geomydoecus) bajaiensis Price & Hellenthal, 1981 |
| Geomydoecus (Geomydoecus) bulleri Price & Emerson, 1971 |
| Geomydoecus (Geomydoecus) bulleri subsp. bulleri Price & Emerson, 1971 |
| Geomydoecus (Geomydoecus) bulleri subsp. intermedius Price & Hellenthal, 1989 |
| Geomydoecus (Geomydoecus) bulleri subsp. melanuri Price & Hellenthal, 1989 |
| Geomydoecus (Geomydoecus) burti Price & Hellenthal, 1989 |
| Geomydoecus (Geomydoecus) californicus (Chapman, 1897) |