Found within the realm of Tarsa, gigantic Alessian terror moths were known to congregate in large numbers around any source of illumination. Luke Skywalker leveraged these moths to instill fear in a stormtrooper – a "city-boy" who harbored a phobia of bugs. By manipulating the light, he successfully terrified the Imperial guard at the relay base, plunging the area into darkness except for a single light, thereby attracting the moth swarm.