| Scutellista Motschulsky, 1859 |
| Scutellista caerulea (Fonscolombe, 1832) |
| Scutellista cyanea Motschulsky, 1859 |
| Scutellista myrti (Costa, 1863) |
| Scutellista obscurata Silvestri, 1915 |
| Scymnophagus Ashmead, 1904 |
| Scymnophagus townsendi Ashmead, 1904 |
| Selitrichus Rondani, 1877 |
| Serimus Brèthes, 1913 |
| Smeagolia Hedqvist, 1973 |
| Spalangia Latreille, 1805 |
| Spalangia abenabooi Girault, 1932 |
| Spalangia astuta Förster, 1851 |
| Spalangia atherigonae Risbec, 1951 |
| Spalangia brasiliensis Ashmead, 1904 |
| Spalangia cameroni R.C.L. Perkins, 1910 |
| Spalangia chontalensis Cameron, 1884 |
| Spalangia drosophilae Ashmead, 1887 |
| Spalangia endius Walker, 1839 |
| Spalangia entellus Latreille |