Amylase, sucrase and cellulase were detected in the alimentary canals of workers and soldiers of Amitermes evuncifer Silvestri, but only sucrase and cellulase were found in the alimentary canal of the alates. Enzyme activities varied in different parts of the alimentary canal. That high enzyme activities were observed in the guts of the workers (than those of the soldiers) is due to the fact that the workers forage for food which they digest partially before feeding other members of the colony through trophallaxis. The presence of enzymes in the alimentary canals of alates and soldiers indicates that the partially digested food, from the workers, undergoes further digestion in their systems.
