Numerous species of tropical stingless bees (Hymenoptera, Meliponini) have workers that lay eggs even in the presence of a queen, i.e., queenright colonies. These worker eggs, which are laid during cell provisioning and oviposition process (POP), are eaten mainly by the queen. In this work, we studied POP in a colony of Trigona cilipes in the queenright and queenless stages. POP behavior was observed on 67 occasions. In addition, the ovaries of different aged workers in both stages were analyzed.  Although workers in both stages of the colony possessed developed ovaries, they never oviposited, despite showing behavior similar to that seen in species with workers which lay eggs. This form of sterility is outstanding among social insects and is comparable only to other meliponines that have fully sterile workers.