Pulga were a type of creature native to the forest moon Endor. The sentient Ewoks also native to the moon would sometimes ride pulga.[1]
Behind the scenes
The term pulga was first used in the Star Wars Legends continuity and was used to refer to a type of horse found on Endor.[2] Gaupa were confirmed to be canon by the sourcebook Star Wars: Absolutely Everything You Need to Know in 2015, which used the term independently from pony and so suggested the creatures were a separate group.[1]