Linked from
The 7 pages that link to Raptorial foreleg, each with the reason it gives.
MantodeaBroader topic: Mantises use these spined forelegs to capture prey.
Raptorial legBroader topic: Many insect raptorial legs are modified forelegs that fold around prey.
EmpusidaeRelated: Empusids share the grasping forelegs characteristic of praying mantises.
RanatraRelated: Ranatra uses grasping forelegs to capture aquatic prey.