Scelionidae Haliday, 1839
Nixonia atra Masner, 1970
Nixonia bini Johnson & Masner, 2006
Nixonia corrugata Johnson & Masner, 2006
Nixonia elongata Johnson & Masner, 2006
Nixonia flavocincta Johnson & Masner, 2006
Nixonia gigas Johnson & Masner, 2006
Nixonia krombeini Johnson & Masner, 2006
Nixonia lamorali Johnson & Masner, 2006
Nixonia pecki Johnson & Masner, 2006
Nixonia pretiosa Masner, 1958
Nixonia priesneri Johnson & Masner, 2006
Nixonia sicaria Johnson & Masner, 2006
Nixonia stygica Johnson & Masner, 2006
Nixonia watshami Johnson & Masner, 2006
