Acossus is a genus of moths belonging to the family Cossidae.

Species Acossus centerensis (Lintner, 1877) – poplar carpenterworm moth Acossus populi (Walker, 1856) – aspen carpenterworm moth Acossus terebra (Denis & Schiffermüller, 1775) Acossus undosus (Lintner, 1878) Acossus viktor (Yakovlev, 2004)

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