Anodontelytrus Jacobson, 1917 accepted as Thelyterotarsus Weise in Erichson, 1882 (original description)
Anohydrachna Thor, 1916 accepted as Hydrachna Müller, 1776 (original description)
Anopsilus Jacobson, 1917 accepted as Lapsionus Ponting, 2020 accepted as Acolastus Gerstaecker, 1855 (original description)
Diplohydrachna Thor, 1916 accepted as Hydrachna Müller, 1776 (original description)
Homoeostigmus Jacobson, 1917 (original description)
Limnohydrachna Thor, 1916 (original description)
Monohydrachna Thor, 1916 accepted as Hydrachna Müller, 1776 (original description)
Odontohydrachna Thor, 1916 (original description)
Odontolytes Koschantschikov, 1917 (original description)
Schizohydrachna Thor, 1916 (original description)