Trappus were sizable reptilian creatures that originated from the planet Dalna, located within the Outer Rim Territories. The Dalnans commonly employed these reptiles to haul wagons, especially when the limited number of landspeeders available on the planet were already in use. Certain farmers residing in the more isolated regions of Dalna asserted that trappus possessed the ability to detect impending groundquakes. Tracer Lore, the head of Dalnan security, suggested to Jedi Knight Vernestra Rwoh that she should utilize a trappu as transportation during her planned journey to the Maawat Mountains in order to look into potential Nihil operations occurring there.