Most organisms coordinate their physiology and behavior with the 24-hour day/night cycle generated by Earth’s rotation. These biological rhythms are controlled by molecular clocks that are conserved across animals. In the Drosophila brain, the molecular circadian clock is expressed in ~240 neurons, organized into distinct clusters according to gene expression, anatomy, and localization. Egg-laying is a key female behavior with a profound impact on species fitness. While oviposition is primarily governed by successful mating, it is also modulated by the circadian clock. Previous work from our laboratory demonstrated that the lateral dorsal neurons (LNds) play a leading role in the control of oviposition rhythms. Here, we extend these findings by showing that the lateral posterior neurons (LPNs), another group of clock neurons, are also required for the circadian control of egg laying. We further explore the contributions of these neurons, by silencing or activated them using genetics approaches.