Drywood termites can push out small hard fecal pellets, often called frass, that collect in piles below a kick-out hole. Many subterranean termites do not leave those visible pellets, however. A pile of particles therefore does not confirm the species, and the absence of pellets does not rule termites out.
Drywood termite pellets are small and fairly uniform
They often look like tiny grains whose color varies with the wood and may show faceted or grooved surfaces up close. A pile beneath trim or wooden furniture deserves inspection of the area above it.
Look for a small kick-out hole nearby
Drywood termites can push pellets from galleries through discreet openings. Do not pry into structural wood to find the nest; document the location and see whether particles reappear after cleanup.
Do not confuse termite frass with other insect debris
Carpenter ants eject more irregular wood shavings and debris, while some beetles create fine powder. A magnified photo can help, but professional identification is more reliable when structural wood is involved.
The absence of pellets does not rule out termites
Subterranean termites more often show mud tubes, shed wings, or damaged wood rather than piles of pellets. If wood sounds hollow, mud tubes appear, or activity recurs, arrange an inspection even without droppings.
Sources
- U.S. Environmental Protection Agency — Integrated Pest Management Principles — Integrated pest management emphasizing prevention, exclusion, sanitation, and lower-risk control.