The largest moths in North America are: White Witch Moth (Thysania agrippina) Luna Moth (Actias luna) Atlas Moth (Attacus atlas) Cecropia Moth (Hyalophora cecropia) Polyphemus Moth (Antheraea polyphemus) A comparison table of the five largest moths in North America: Moth Name Wing Span (inches) Description White Witch Moth 11.8 – 15.7 Large, distinctive moth […]