ordo
Strepsiptera Kirby 
grada “Protostrepsiptera” Engel 
fam.
†Protoxenidae Pohl et al.
Protoxenos
fam.
†Phthanoxenidae Engel & Huang,
fam. nov. Phthanoxenos
fam.
†Cretostylopidae Kathirithamby & Engel
Cretostylops
hypordo Eteostrepsiptera Engel
fam.
†Mengeidae Pierce Mengea
subordo Neostrepsiptera Engel
fam. Bahiaxenidae Bravo et al. Bahiaxenos
infraordo Eustrepsiptera Engel
parvordo Mengenillidia Kinzelbach
Mengenilla
fam. Mengenillidae Hofeneder Mengenilla
parvordo Stylopidia Kinzelbach
Stylops
nanordo Corioxeniformia Kinzelbach
Corioxenos
fam. Corioxenidae Kinzelbach Corioxenos
nanordo Stylopiformia Kinzelbach
Stylops
fam. Bohartillidae Kinzelbach Bohartilla
fam. Halictophagidae Perkins Halictophagus
fam. Elenchidae Perkins Elenchus
fam.
†Protelencholacidae Pohl & Beutel
Protelencholax
superfam. Stylopoidea Kirby
Stylops
fam. Myrmecolacidae Saunders Myrmecolax
fam. Lychnocolacidae Bohart Lychnocolax
cladus Hymenophagida Engel
fam. Xenidae Saunders Xenos
fam. Stylopidae Kirby Stylops