Names - Bahiaxenidae Bravo, Pohl, Silva-Neto & Beutel, 2009 valid
- Bohartillidae Kinzelbach, 1969 valid
- Corioxenidae Kinzelbach, 1970 valid
- Crawfordinae Pierce, 1908 synonym
- Cretostylopidae† Grimalid & Kathirithamby, 2005 valid
- Cretostylopidae† Grimaldi, Kathirithamby & Schawaroch, 2005 valid
- Dioxoceridae Pierce, 1908 synonym
- Diozoceridea Pierce, 1911 synonym
- Elenchidae Perkins, 1905 valid
- Elenchinae Ulrich, 1930 synonym
- Elenchoidea Pierce, 1908 synonym
- Halictophagidae Perkins, 1905 valid
- Halictophaginae Perkins, 1905 synonym
- Halictophagoidea Pierce, 1908 synonym
- Halictophaidae Pierce, 1908 synonym
- Halictoxeninae Pierce, 1908 synonym
- Hylecthridae Pierce, 1908 synonym
- Lychnocolacidae Bohart, 1951 valid
- Mengeidae† Pierce, 1908 valid
- Mengenillidae Hofeneder, 1910 valid
- Mengenillinae Bolivar Pieltain, 1926 synonym
- Mengenillini Ulrich, 1930 synonym
- Myrmecolacidae Saunders, 1872 valid
- Myrmecolacides Saunders, 1872 synonym
- Protoxenidae† Pohl, Beutel & Kinzelbach, 2005 valid
- Pseudoxenides Saunders, 1872 synonym
- Stichotrematidae Hofeneder, 1910 synonym
- Stichotrematoidea Hofeneder, 1910 synonym
- Stylopidae Kirby, 1813 valid
- Stylopinae Perkins, 1905 synonym
- Xenidae Pierce, 1908 synonym
- Xenides Saunders, 1872 synonym
- Xeninae Saunders, 1872 valid
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