Grass Webworm Moth vs Hawaiian Carnivorous Caterpillar

Side-by-side species comparison

Attribute Grass Webworm Moth Hawaiian Carnivorous Caterpillar
Scientific Name Herpetogramma licarsisalis Eupithecia staurophragma
Order Lepidoptera Lepidoptera
Family Crambidae Geometridae
Size 20-26 mm wingspan 20-25 mm wingspan
Habitat Grasslands Forests
Diet Omnivores Predators
Regions Southeast Asia, Oceania, Africa, South America Hawaii
Conservation Least Concern Not Evaluated

Grass Webworm Moth

A small brownish moth with faint wavy lines across the forewings. Its larvae spin silk webs over grass and can cause serious damage to tropical lawns and pastures.

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Did You Know?

Larvae create silken tunnels at the base of grass stems where they hide during the day.

Hawaiian Carnivorous Caterpillar

A remarkable moth whose caterpillars are ambush predators of insects, unique among Lepidoptera. Found only in Hawaiian native forests.

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Did You Know?

These are among the only caterpillars in the world that actively hunt and eat other insects.