Rice Water Weevil vs Forest Tent Caterpillar Moth

Side-by-side species comparison

Attribute Rice Water Weevil Forest Tent Caterpillar Moth
Scientific Name Lissorhoptrus oryzophilus Malacosoma disstria
Order Coleoptera Lepidoptera
Family Curculionidae Lasiocampidae
Size 2.5-3.5 mm 25–35 mm wingspan
Habitat Wetlands Forests
Diet Herbivores Herbivores
Regions South Asia (India, Sri Lanka; invasive pest spreading across Asian rice-growing regions) North America
Conservation Least Concern Not Evaluated

Rice Water Weevil

A small, grey-brown weevil that feeds on rice roots as a larva and on rice leaves as an adult. Adults create distinctive narrow feeding scars along the surface of rice leaves parallel to the leaf veins.

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Did You Know?

Larvae feed underwater on rice roots, surviving by obtaining oxygen from the rice plant's aerenchyma tissue through specialized spiracles.

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.