| Apomidas Coquillett, 1892 |
| Ectyphinae Wilcox & Papavero, 1971 |
| Heteromydas Hardy, 1944 |
| Heteromydas bicolor Hardy, 1944 |
| Lampromydas Séguy, 1928 |
| Leptomydinae Papavero & Wilcox, 1974 |
| Messiasia D'Andretta, 1951 |
| Messiasia californica (Cole, 1970) |
| Messiasia painteri Wilcox & Papavero, 1975 |
| Messiasia perpolita (Johnson, C. W., 1933) |
| Messiasia pertenuis (Johnson, C. W., 1926) |
| Messiasiini Papavero & Wilcox, 1974 |
| Mydas Fabricius, 1794 |
| Mydas abdominalis Adams, 1904 |
| Mydas annularis Gerstaecker, 1868 |
| Mydas arizonensis Wilcox, Papavero & Pimentel, 1989 |
| Mydas basalis Westwood, 1841 |
| Mydas belus (Séguy, 1928) |
| Mydas chrysites (Osten-Sacken, 1886) |
| Mydas cleptes (Osten-Sacken, 1886) |