Common Tree Nymph vs Forest Tent Caterpillar Moth

Side-by-side species comparison

Attribute Common Tree Nymph Forest Tent Caterpillar Moth
Scientific Name Idea stolli Malacosoma disstria
Order Lepidoptera Lepidoptera
Family Nymphalidae Lasiocampidae
Size 130-170 mm wingspan 25–35 mm wingspan
Habitat Forests Forests
Diet Nectar Feeders Herbivores
Regions Southeast Asia (Indonesia, Borneo, Sulawesi, Philippines, Maluku) North America
Conservation Least Concern Not Evaluated

Common Tree Nymph

A very large butterfly with translucent white wings heavily veined and spotted in black. It flies with a slow, lazy, paper-kite fluttering motion through the forest understory.

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Did You Know?

Its slow, floating flight advertises its toxicity to predators - the caterpillars store alkaloids from their host plants that persist into adulthood.

Forest Tent Caterpillar Moth

A widespread North American moth whose caterpillars defoliate vast areas of hardwood forest. Despite the name, they form silken mats rather than true tents.

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Did You Know?

Outbreaks can defoliate millions of hectares of forest, though healthy trees usually recover with new leaves.