Termite droppings vary with the type of termite species like drywood dampwood or subterranean types.
Drywood termite termite droppings from ceiling.
While cleaning their nests they push this frass outside of their nest through the holes.
So there would be small black marks and dark substances which would result into the termite droppings.
The droppings from the subterranean termites are made to look like tubes of mud.
When drywood termites infest structural timbers in your ceiling cracks may occur due to the shifting wood.
The feces frass can be of varied colors as per the color of wood that is being consumed by the termites.
The peculiarity of the drywood termite is frass fecal droppings of termites.
Having had a look at the droppings from termites in a general way here is a discussion to bring out the difference between the droppings by the subterranean vs drywood.
When they clean out their nest they push these droppings out through holes.
Drywood termite droppings are oval shaped tiny pellets or capsules with rounded tips and 6 concave sides.
Termite droppings drywood termites leave behind ridged light brown fecal pellets called frass.
The appearance of the droppings depend on the type of species but mostly they are oval shaped tiny with six concave sides and rounded ends.
Piles of wings or mud tubes.
Termite droppings is the important sign of the presence of drywood termites.
When it comes to the color termite frass differs greatly depending on the kind of wood and cellulose food source ranging from dark brown to beige.
This makes it hard to distinguish them from the nests.