Wroshyr louse

Wroshyr lice were small parasites found on Kashyyyk that lived on wroshyr trees and inflicted Wookiees. They were used to make Wroshyr lice syrup. It is said that when a female Wookiee drops a Wroshyr louse on a male Wookiee it is a gesture of affection. The female Wookiee is then supposed to groom the fur of the male hit with the louse as an apology. Mallatobuck attempted to drop a louse on Chewbacca, however, he was pushed out of the way by another Wookiee right before the louse hit.

Text and facts from the “Wroshyr louse/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.