Source: Revenge Of The Sith. Several Utais can be seen on Utapau when Obi-Wan arrived to look for General Grievous
The Utai are one of the native species on Utapau. As the working class, they look after the dragon corrals and serve as ground crews on landing platforms. They live in the numerous sinkholes on the planet, taming the indigenous dactillions and varactyls.