In other occasions they look like saw dust or even sand.
Drywood termite termite droppings from ceiling.
While cleaning their nests they push this frass outside of their nest through the holes.
Drywood termites take over the timber in your ceilings.
The peculiarity of the drywood termite is frass fecal droppings of termites.
The termites also use the droppings as cement to make bridges in the nests deep in the nests so as to easily access food.
Termites love eating wood.
When they clean out their nest they push these droppings out through holes.
Termite droppings or commonly known as frass is one of the common signs of termite infestation in your house.
If you encounter termite fecal pellets on bed it means that there is an infestation on the roof or ceiling of your room.
The pellets look like coffee grounds.
Drywood termite droppings are oval shaped tiny pellets or capsules with rounded tips and 6 concave sides.
The termite droppings measure around 1 mm in length and several of them together form into tiny mounds on the ground next to the exit holes.
So there would be small black marks and dark substances which would result into the termite droppings.
When drywood termites infest structural timbers in your ceiling cracks may occur due to the shifting wood.
Piles of wings or mud tubes.
For the drywood and dampwood termites their droppings maybe recognized because they look like pellets.
Usually drywood termites leave little signs of activity in your house.
So it is one of the indication for spotting the termites.
Check for small holes which are not bigger than pin holes over the ceiling from where the castings have been falling.