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Later they will eat larger insects, beetles, grasshoppers, crickets, and other pest insects. Praying mantises are large, solitary, slow moving, and predaceous insects that catch their prey with their front legs. They do not have jumping hind legs. Of the 20 species of mantises that occur in North America, the introduced Chinses mantis, at a lenght of as much as four inches, is the largest.
Catching the praying mantis. 1  1. Prepare before going hunting for a praying mantis. Wear good clothing, especially in cold climates or places with thorny bushes. 2  2. Look for a praying mantis. Look around your house, making sure to check humid places and plants or other greenery. 3  3. Catch the praying mantis without using your hands.