The pillbug lives under rocks and logs and feeds on rotting matter. It can roll itself into a pill-shaped ball. The pillbug is not an insect, and it is one of the only terrestrial crustaceans. The Praying mantis is a predaceous insect whose strong forelegs are used to snatch their prey from an ambush. The stag beetle gets its name from the fact that some males have jaws resembling the antlers of a deer.
Paper wasps make their own paper by chewing wood into pulp and mixing it with their saliva.
The samurai helmet beetle is one of the most common and famous insects in Japan, often kept as pets by children. Not an insect, the scorpion is closely related to spiders and has a painful but not dangerous sting. However, there are quite a few that are very deadly to humans. In fact, the larger, more ferocious looking scorpions are harmless while the smaller, less formidable varieties are highly venomous.