They have been around for centuries. They sting, they bite. They cause intense itching or painful sores. They even cause allergic reactions and sometimes death. There are two types of insects that are pests to humans--those that sting and those that bite. The insects that bite do so with their mouths and include mosquitoes, chiggers, and ticks. Those that sting do so with a stinger at the other end of their bodies. Bees have a barbed stinger and leave their stinger behind. Wasps and fire ants have smooth stingers and can sting again. This article talks about insects and bugs and offers tips on how to protect oneself and the children from them.