requires installation of Windows only Intkey software (so I haven't been able to try the keys). Site lists keys to the following:

Cotesia species of economic importance
Adeliinae Genera of the New World
Agathidinae Genera of the New World
Agathidinae Genera of Thailand
Agathirsia Species of the World
Alabagrus Species of the World
Alabagrus Species of La Selva
Aleiodes Species of the New World
Alysiinae Genera of the New World
Amputoearinus of the New World
Aphidiinae Genera of the New World
Apozyginae Genera of the New World
Betylobraconinae Genera of the New World
Blacinae Genera of the New World
Braconinae Genera of the New World
Cardiochilinae Genera of the New World
Cenocoeliinae Genera of the New World
Cheloninae Genera of the New World
Dirrhopinae Genera of the New World
Two species of Disophrys
Doryctinae Genera of the New World
Euagathis of Thailand
Euphorinae Genera of the New World
Gnamptodontinae Genera of the New World
Helconinae Genera of the New World
Histeromerinae Genera of the New World
Homolobinae Genera of the New World
Hormiinae Genera of the New World
Ichneutinae Genera of the New World
Khoikhoiinae
Lytopylus of Costa Rica
Macrocentrinae Genera of the New World
Masoninae Genera of the New World
Mendesellinae Genera of the New World
Meteorideinae Genera of the New World
Meteorinae Genera of the New World
Microgastrinae Genera of the New World
Microtypinae Genera of the New World
Miracinae Genera of the New World
Neoneurinae Genera of the New World
Opiinae Genera of the New World
Orgilinae Genera of the New World
Rogadinae Genera of the New World
Sesioctonus Species of the World
Sigalphinae Genera of the New World
Ypsistocerinae Genera of the New World