Durmite is a caterpillar-like boss found inside Bowser's body in Mario & Luigi: Bowser's Inside Story. The creature wears a hot pink ribbon on her head, has angry eyes, and a funnel-like snout, similar to Birdo's trunk. Her body is somewhat similar to a Wiggler, only with small, pink feet, and a white/yellow line splitting the wiggler-birdo's colors. One half green-blue, and the other side pink.
Durmite came from a very large carrot from a Wiggler's garden that Bowser was forced to eat, and then to battle the Wiggler. A short time after beating the Wiggler, Bowser got a major stomachache that came from Durmite absorbing his energy from within. The Mario Bros. must defeat Durmite and so continue their adventure. Durmite reveals that she is actually Wisdurm, the guardian of the first Star Cure, after Mario and Luigi catch up with her in the Energy Hold.
In battle, Durmite attacks the Mario Bros. in many ways. One of her attacks turns her completely red from anger, like Wigglers do, and charge at Mario or Luigi. The plumbers can counter this attack using their hammers, dealing damage to Durmite. However, Durmite can use other disgusting attacks, such as spiting a sticky string from her snout to capture either Mario or Luigi and eat them. The string will slowly move up and down like a jump rope as the brothers leap to avoid its swaying. After eating the victim should he touch the string, Durmite can spit out her meal for an attack against the remaining hero or sometimes release the victim from her rear to hit the target from the back and lose Speed. Either variation can be jumped over.
Durmite will also summon Biffiduses to fight for her, which she can devour, then shoot their spears from her snout at Mario or Luigi. These spear will sparkle before being shot and the direction they are facing hints at which brother they will strike (upward for Mario and downward for Luigi). These attacks can be avoided using a timely jump. Durmite will sometimes summon a straw from her mouth, which allows her to regain her health. The brothers must take a quick action on destroying the straw which stops Durmite from sucking nutrients. A stronger version of Durmite called Durmite X is found later on in The Gauntlet.
The Straw is a heart-shaped object that Durmite uses in battle to steal Bowser's HP. It has no physical attacks, but is merely used by Durmite to recover HP. The Straw is a light shade of purple, and is a part of Durmite, acting as a proboscis.
Whenever the Straw appears, a tribe of Biffidus usually appears to defend Durmite and attempt to distract the Mario Bros., while Durmite recovers HP. The Straw does not need to be destroyed, however, it can be, and if done so, it will prevent Durmite from regaining HP (until Durmite uses it again).
Names in other languages