Giant Jawed Longhorn vs Forest Tent Caterpillar Moth

Side-by-side species comparison

Attribute Giant Jawed Longhorn Forest Tent Caterpillar Moth
Scientific Name Macrodontia dejeanii Malacosoma disstria
Order Coleoptera Lepidoptera
Family Cerambycidae Lasiocampidae
Size 50-85 mm 25–35 mm wingspan
Habitat Forests Forests
Diet Wood Feeders Herbivores
Regions Brazil, Paraguay, Argentina North America
Conservation Least Concern Not Evaluated

Giant Jawed Longhorn

A large prionine with impressive curved mandibles from the tropical forests of South America. While smaller than the famous M. cervicornis, it is still a formidable insect. Males use their enlarged mandibles in combat over females.

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Did You Know?

The mandibles of males can account for nearly a third of total body length and are used like antlers in combat.

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.