Bagworm Moth Larva

Scientific Name: Family Psychidae

Order & Family: Lepidoptera, Psychidae

Size: 1 cm to 5 cm in length depending on maturity.

Bagworm Moth Larva

Natural Habitat

Typically found on trees, shrubs, and the sides of buildings or fences.

Diet & Feeding

Larvae are generalist feeders, eating foliage from deciduous and coniferous trees.

Behavior Patterns

Larvae construct a protective silk bag incorporating bits of plant material or debris for camouflage. They live most of their lives inside this case, only sticking their heads out to feed or move.

Risks & Benefits

Often considered a landscape pest as they can cause significant defoliation to host plants; they are not harmful to humans.

Identified on: 1/12/2026