4) Incertae sedis within Boulenophrys

Four species: Boulenophrys fansipanensis (Tapley, Cutajar, Mahony, Nguyen, Dau, Luong, Le, Nguyen, Nguyen, Portway, Luong & Rowley, 2018) comb. nov.; Boulenophrys frigida (Tapley, Cutajar, Nguyen, Portway, Mahony, Nguyen, Harding, Luong & Rowley, 2021) comb. nov.; Boulenophrys hoanglienensis (Tapley, Cutajar, Mahony, Nguyen, Dau, Luong, Le, Nguyen, Nguyen, Portway, Luong & Rowley, 2018) comb. nov.; Boulenophrys shuichengensis (Tian & Sun, 1995) comb. nov. .