Lux grubs are the offspring of Vespula and are found along with her during her encounter in the Chambers of Xeric. They will have a meter above their heads that slowly depletes, and must be fed medivaemia blossoms in order to restore the meter. If their meter reaches zero, they will transform into vespine soldiers, which must be defeated, while also healing Vesupla and the abyssal portal. It is recommended to have at least one team member solely focusing on feeding the lux grubs found around the chamber to prevent the boss from healing itself.