The Cryptocephalinae of the World (http://camptosomata.myspecies.info/) serves to maintain images, updated classification, and bibliography of cryptocephaline leaf beetles. Currently, focus is largely on Stegnocephala, New World Cryptocephalus, and Fulcidacini; however, with time and continued collaboration we hope to build upon this work. Images are based almost exclusively on type specimens, but authoritatively identified material is also included. The identity of most species herein is finally confirmed after almost 150 years since their original description. This dataset was funded by an Encyclopedia of Life Postdoctoral Fellowship awarded to the author.