It is known that many groups of insects, such as beetles, fasten their elytra to the abdomen utilizing an array of friction-based locking mechanisms, cuticular outgrowths, and microstructures, such as microtrichia. Few studies have examined the ultrastructure of these morphological structures, and even fewer have examined these mechanisms in weevils. Considered one of the largest families of insects, with over 60,000 species described to date, exploration of weevil diversity is still in its infancy. Thus, an investigation of wing locking mechanisms in the subfamily baridinae has been carried out to further understand the morphological variation within this superdiverse insect group, to reveal the ultrastructure of these different mechanisms, and to compare some of the mechanisms found in weevils to those found within other insect groups.