Luna moths are greatly attracted to lights at night so leaving a porch light on will increase the likelihood of spotting one. They are sensitive to the environment. Light pollution (constant light at night), pesticides and parasitic flies all harm this delicate species. They are only found in North America and wild populations are threatened due to these sensitivities. Unfortunately, they are not listed as endangered by the IUCN or the EPA, so curbs on light pollution and pesticides in their habitat are unlikely to stop.
Populations are being bred in captivity and are often used in classrooms to teach about butterfly life cycles and their role in the environment.
As a member of the Silkmoth family, the larvae (caterpillar) of the Luna moth spins a silky cocoon. Larvae eat the leaves on birch, sweetgum, hickory and walnut trees. Caterpillars are chubby and pale green with a few bristles atop each segment.
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