| Contents | Classes | Subclasses | Orders | Suborders | Families |
Family LEPcTOPHARYNGIDAE Kahl, 1926
| Syns. | Pseudomicrothoracidae, Trichoderidae [for Trichopelm(at)idae] |
With general characteristics of suborder (above). Three "pseudomembranelles" on left side of oral area and stomatogenesis parakinetal- or even buccokinetal-like.
| Leptopharynx Mermod, 1914 (syn. Trichoderum [for Trichopelma] ). Several species. |
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| Pseudomicrothorax Mermod, 1914 (syns. Chilodonopsis, Craspedothorax). Few species. |
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| Stammeridium Wenzel, 1969 (for Stammeriella). Single species. |