Forest Tent Caterpillar Moth vs Fall Armyworm

Side-by-side species comparison

Attribute Forest Tent Caterpillar Moth Fall Armyworm
Scientific Name Malacosoma disstria Spodoptera frugiperda
Order Lepidoptera Lepidoptera
Family Lasiocampidae Noctuidae
Size 25–35 mm wingspan 32-40 mm wingspan
Habitat Forests Farmland
Diet Herbivores Omnivores
Regions North America Americas, Africa, Asia, Oceania
Conservation Not Evaluated Not Evaluated

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.

Fall Armyworm

A highly destructive migratory moth whose caterpillars can devastate entire corn and cereal fields in days. It has recently spread from the Americas to Africa and Asia.

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Did You Know?

Fall armyworm moths can migrate up to 1,600 km in a single generation carried by wind currents.