Devil Beast

Devil beasts were large flying creatures that lived on Endor. The purple and blue reptavian creatures had four limbs and a tail; their large wings connected from their shoulders to their hips and covered their arms all the way to the wrist.

King Marlox, leader of the Quorks, had a devil beast whom he once threatened young Ewoks with.

Behind the scenes
It is not clear if these were related to the mantigrue or the condor dragon. It is more likely to be the former since the condor dragon has a set of arms separate from the wings and it also matches the coloration of the mantigrue as seen in the Ewoks animated series.