The Planet of Tyrix is one under the thumb of the Decepticon Empire. While not nearly as lush with resources as Earth, the jungle planet has served as both an Energon extraction source, as well as harvesting its natural resources for Con usage. The twenty-foot tall insectoid natives, however, don't really seem to enjoy this exploitation. Go figure.
Tyrix is located in the Inner Rim of the Gamma Quadrant in the Upper Plane of the Milky Way galaxy.