Nemouridae Newman, 1853
Zapada chila (Ricker, 1952)
Zapada cinctipes (Banks, 1897)
Zapada columbiana (Claassen, 1923)
Zapada cordillera (Baumann & Gaufin, 1971)
Zapada frigida (Claassen, 1923)
Zapada glacier (Baumann & Gaufin, 1971)
Zapada haysi (Ricker, 1952)
Zapada katahdin Baumann & Mingo, 1987
Zapada oregonensis (Claassen, 1923)
Zapada quadribranchiata (Zhiltzova, 1977)
Zapada wahkeena (Jewett, 1954)
