Ant-fly

"Finally, there's the lumps and the hunger for ant-flies. They stick to your face like blemishes. Like space barnacles."

- Unidentified Ithorian (Musings of an Ithorian)'s notes

Ant-flies were creatures eaten by Ithorians after they metamorphosized. They were somewhat similar to space barnacles in that they stuck to Ithorians' faces.

Behind the scenes
Ant-flies were first mentioned in Monsters and Aliens from George Lucas, a book published in 1993. Lucasfilm employee Leland Chee, who maintains the Holocron continuity database, has indicated that information contained in the book is non-canonical. Ant-flies were later made canonical with the publishing of Musings of an Ithorian on Star Wars Hyperspace.