Superorder Neuropterida
   Order Megaloptera Latreille, 1802 - alderflies
     Family Sialidae Leach, 1815 - alderflies
       1 Genus Sialis Latreille, 1802 - alderfly
       1.0.1 Genus Protosialis van der Weele, 1909 see Subgenus Protosialis van der Weele, 1909
       1.0.2 Genus Nipponosialis Kuwayama, 1962 see Genus Sialis Latreille, 1802
       2 Genus Leptosialis Esben-Petersen, 1920
       3 Genus Austrosialis Tillyard, 1919
       4 Genus Stenosialis Tillyard, 1919
       5 Genus Indosialis Lestage, 1927
       6 Subfamily †Dobbertiniinae
       7 Genus †Eosialis Nel et al., 2002
       8 Genus †Proindosialis Nel, 1988