Barklice

Scientific Name: Cerastipsocus venosus

Order & Family: Order Psocodea, Family Psocidae

Size: 4 mm to 10 mm in length

Barklice

Natural Habitat

Found on the smooth bark of various hardwood trees, notably Crepe Myrtles, Oaks, and Maples.

Diet & Feeding

Scavengers that consume organic debris, fungi, algae, lichen, and mold on the surface of tree bark.

Behavior Patterns

Commonly referred to as 'bark cattle' due to their habit of herding in large groups. When threatened, they move in unison like a flock or herd to deter predators.

Risks & Benefits

They provide a benefit to the ecosystem as natural 'tree cleaners'. They are completely harmless to humans and trees, and they do not cause any damage to the bark or the health of the plant.

Identified on: 4/7/2026