PHAECASIOPHORA Grote, 1873, Bull. Buffalo Soc. Nat. Sci. 1: 90. Type species: "Sciaphila confixana Walker, 1863". [Olethreutinae: Olethreutini]
MEGASYCA Diakonoff, 1959, Ark. Zool. (2)12: 171. Type species: "Sericoris mutabilana Clemens, 1865 [=Sciaphila confixana Walker, 1863]". [Olethreutinae: Olethreutini] [subgenus of Phaecasiophora]