Panel (A): Stellar mass distribution of disrupted satellite galaxies. The maximum stellar mass of the disrupted galaxies is used in the histogram. Panel (B): Distributions of perturbation index for surviving (blue) and disrupted (black) satellites. The dashed vertical lines indicate the median of each distribution in the corresponding color. The disrupted galaxies show remarkably higher perturbation indices than the surviving ones, suggesting that they are disrupted by interactions with nearby objects within their host groups. Panel (C): Time difference between the epoch of gas loss and the epoch of disruption for each disrupted galaxy. The marginal time difference suggests that the gas loss and gravitational perturbations occurred nearly simultaneously.