Anobiid Powderpost Beetles

Facts, Identification, & Control

Scientific Name

Family Anobiidae


What Do They Look Like?

  • Size: Adult Anobiid powderpost beetles are small and are less than 5/16 of an inch long.
  • Color: Adults are brownish or black in color and larvae are lightly colored.
  • Characteristics: Body shape ranges from long and thin to oval. When viewed from above, their heads are not visible since they are hidden under the first segment of their bodies. During their larval stage, these pests have a grub-like appearance.

How Did I Get Anobiid Powderpost Beetles?

They usually enter a home through infested lumber or within firewood. Adult Anobiid powderpost beetles can also fly into a house to deposit eggs in doorframes or paneling.

These pests prefer damp timber in poorly ventilated areas. An infestation in crawlspaces or basements often indicates a water leak or other moisture issues. In homes prone to high humidity, these beetles can also spread to floors and furniture.

How Serious Are Anobiid Powderpost Beetles?

Anobiid powderpost beetles that are the most damaging in the U.S. are furniture beetles and deathwatch beetles. These insects are capable of reinfesting the same places year after year.

Signs of Infestation

Signs of Anobiid powderpost beetle infestations include:

  • Exit holes
  • Leftover wood frass
  • Wood damage

How Do I Get Rid of Anobiid Powderpost Beetles?

What Orkin Does
Your local Orkin technician is trained to help manage Anobiid powderpost beetles and similar pests. Since every building or home is different, your Orkin technician will design a unique program for your situation.

Orkin can provide the right solution to keep Anobiid powderpost beetles in their place and out of your home or business.


Behavior, Diet, & Habits

What Do They Eat?
Anobiid powderpost beetles do not feed on wood, it is their larvae that cause damage as they feed and develop in infested wood. They prefer seasoned, older wood located in cooler areas of the home with moisture content more than 14 percent. Their larvae will feed on both hardwoods and softwoods from the inside, reducing them to fine dust, including:

  • Fir
  • Plywood
  • Pine
  • Spruce
  • Timber

Where Do They Live?
These insects live and infest in:

  • Basements
  • Beams
  • Crawlspaces
  • Joists
  • Still plates
  • Subflooring

Life Cycle
The complete life cycle from egg to adult normally takes about one to three years. Anobiid powderpost beetles prefer to lay their eggs in cracks, old beetle exit holes, or under wood splinters. Upon hatching, larvae bore into wood, begin to feed and finally become adult beetles that bore round exit holes about 1/8 inch in diameter. Adult females can fly, but usually lay their eggs in the same wood they exited from.