Acriology

The study of grasshoppers, katydids, crickets and their relatives (Orthoptera). This is sometimes expanded to include the orders of insects related to Orthoptera (the Orthopteroids) such as cockroaches (Blattodea), mantids (Mantodea), stick insects (Phasmatodea), earwigs (Dermaptera), and gladiators (Mantophasmatodea).