The agave snout weevil is an American species of beetle from the family of Curculionidae. It is most know as a major pest of large garden agaves, especially Agave americana, and cultivated species such as blue agave (Agave tequilana), of which the produces tequila. The agave weevil is one of the largest of its kind and can reach 280 mm in length, of which a significant portion corresponds to its distinctive elongated beak. The adults are black and lack functional wings. The rotund legless grubs are whitish with dark heads and are up to one centimeter in diameter and five long.

The adult pierce the stalks of the agave to feed on the succulent center. The females chew their way into the plant base, often leaving bacteria (Erwinia sp.) as they go. After a few days, the larvae hatch and start feeding on the soft tissues inside the agave. After about 30 days, the larva form a pupa and emerge as adults approximately one month later. As the larva and bacteria creeps through the heart of the agave, the leaves will slowly wrinkle and shriveling until the plant is so compromised that the plant falls apart from the inside.