Juveniles within a species are often faced with similar ecological pressures on performance as adults, such as obtaining food and escaping predation, but with the potential limitation of being smaller. Previous results have suggested that juveniles may exhibit decreased performance because of their smaller size or may compensate due to increased selection pressure to have increased performance. Studies from vertebrates suggest that locomotion and escape performances should be higher in juveniles, while feeding should be lower. Furthermore, studies on vertebrate feeding have provided mixed support for two competing models of linear and angular kinematic scaling, with both predicting isometric relationships for either linear or angular kinematics. Few studies have examined the scaling, including ontogenetic, of feeding performance in an invertebrate system. Hemimetabolous arthropods, such as praying mantises, offer a unique opportunity to examine ontogenetic patterns of feeding performance as juveniles lack a defined larval stage and are scaled down versions of adults. Praying mantises use the coordinated movements of their raptorial forelegs to capture evasive prey throughout their lives (e.g., from hatching through adulthood), allowing for a direct comparison of individuals as they develop. The goal of this study was to examine the ontogenetic patterns of prey capture strikes using the ghost praying mantis (Phyllocrania paradoxa). I examined body size, foreleg size, and both behavioral and kinematic aspects of the prey capture strike across the same individuals through ontogeny. Results from mixed models suggest that juveniles are limited in aspects of their prey capture strikes, such as less linear displacement and slower linear velocity of their forelegs; but may be compensating through increased angles of joints and amount of their body used. These results may have implications for the optimal foraging of hemimetabolous insects at different life stages and the allometric relationships of feeding performance at static and evolutionary scales.