alderfly , 300 webspinner , 350 jumping bristletail , 550 scorpionfly , 600 Strepsiptera , 1,200 caddisfly , 1,700 stonefly , 1,800 earwig , 2,000 flea , 2,200 mantis , 2,500 mayfly , 3,000 louse , 3,000 walking stick , 4,000 cockroach , 4,000 lacewing , 4,000 termite , 5,000 dragonfly