Wasp-worms, sometimes written as waspworms, were a species of worm that, despite not originating there, lived in hives located on the planet of Vrogas Vas. In the course of a battle which occurred on the planet, both Han Solo and Doctor Aphra found themselves completely coated in wasp-worms after they shot at two hives. As a result, the two humans panicked, collided with one another, and both lost consciousness. Upon waking up, he Solo expressed his displeasure at being covered in "wasp juice," which had left a stain on his clothing.
The initial appearance of wasp-worms was in Star Wars (2015) 13, which was the third part of Star Wars: Vader Down, a comic book crossover event linking the Star Wars comic series with the Darth Vader comic series. Jason Aaron wrote Star Wars 13, and Mike Deodato, Jr. provided the pencils.