Polyphemus Moths are moths native to North American and to Northern Mexico. They are large silkmoths with little differences between both genders. Male have slimmer abdomens and thicker antennas. Females have thicker abdomens and thin antennas. Active at night, polyphemus moths attract bat predators. But yet, they confuse bat sonar by vibrating their wings. Like other silkmoths, polyphemus moths do not have mouth parts as adults. So their purpose is to mate and lay eggs on their host plants, which are oak trees, maple trees, hickory trees and other tree species native to temperate forests.