Junk Bug (Green Lacewing Larva)

Scientific Name: Chrysopidae (larva)

Order & Family: Neuroptera; Chrysopidae

Size: Typically 1/4 to 1/2 inch (6-12 mm) in length, though the debris pile makes them look larger.

Junk Bug (Green Lacewing Larva)

Natural Habitat

Found in gardens, crops, fields, and forests on foliage, flowers, tree trunks, and sometimes structures; they live wherever aphids and other soft-bodied prey are abundant.

Diet & Feeding

Carnivorous and voracious predators. They primarily feed on aphids (giving them the nickname 'aphid lions'), but also consume mites, thrips, mealybugs, insect eggs, and small caterpillars.

Behavior Patterns

The 'junk bug' is famous for its camouflage strategy; it attaches the empty exoskeletons of its prey, as well as bits of lichen, moss, and bark, to bristles on its back. This creates a moving shield of trash that protects it from predators (like birds) and disguises it from its prey (like ants guarding aphids).

Risks & Benefits

Highly beneficial to humans and ecosystems. They are excellent biological pest control agents for gardens and agriculture due to their large appetite for aphids. They are harmless to humans, although they can give a tiny, harmless pinch if handled.

Identified on: 2/10/2026