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Bagworm gets its name from the bag it spins around its body. Eggs survive the winter in a bag on a host plant. There can be thousands of eggs per bag. Different kinds of bagworms prefer different host plants, from evergreen to deciduous trees to vegetables and legumes. After emerging from eggs, larvae build bags around themselves and grow and mature in the bag. An interesting fact about bagworms is that the male is the only one that emerges from its bag as a black, furry, clear-winged moth. Cream-colored females lack wings and legs and remain in their bags until they die. Both larvae and adults feed on leaves and needles of their host plants.

Several bagwoorms in a row hanging off a shrub branch Vlose-up of a bagworm peeking out of a bag attached to a shrub Photo from Brian Kunkel, University of Delaware, Bugwood.org: Bagworms hanging off shrub branches