Celpido is a giant centipede-type Invectid once under the command of Big Four member Buguese. Celpido caused sinkholes in a village in an attempt to wreak havoc. His true mission, distract the Spider Riders long enough for Buguese and Aqune to find access to the shrine of the Spirit Oracle and her Key. While Celpido was eventually killed in battle with the riders, his mission could be considered a success.