Lasiocampidae

moth family

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

July 16, 2026

Quick Summary

The Lasiocampidae family, commonly known as lappet moths, includes stout-bodied, medium-sized, hairy moths. These insects, belonging to the order Lepidoptera, are characterized by their stout bodies and often tan or grayish coloration, with feathery antennae in both sexes.12

The larvae of Lasiocampidae moths possess distinctive lateral lobes, or lappets, on each body segment. These larvae can be brightly colored and are known for their ability to defoliate trees, including forest, fruit, and ornamental varieties. Adult lappet moths typically have a wingspan ranging from 25 to 75 mm (1 to 3 inches).32

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

8 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

Lepidoptera
Annotated classification
Family Lasiocampidae (tent caterpillar and lappet moths) 1,500 species worldwide; larvae usually hairy and brightly colored, some living gregariously in silk nests; adults medium-size, stout-bodied, short-winged, and exceptionally hairy. Superfamily Zygaenoidea
Read More
Family Lasiocampidae (tent caterpillar and lappet moths) 1,500 species worldwide; larvae usually hairy and brightly colored, some living gregariously in silk nests; adults medium-size, stout-bodied, short-winged, and exceptionally hairy. Superfamily Zygaenoidea
Read More