Insect Body Parts

Insect Body Parts

Insects all have the same general structure. They have segmented bodies divided into three regions: head, thorax and abdomen. They have segmented legs and usually have wings attached to the thorax. There are also other body structures that are typical of insects. However, there are variations in body structures, and each order of insect has variations that are characteristic for that order. In the following exercises you will learn some of the characteristic variations that are typical for two orders of insects. Doing the exercises will help you understand why insects are placed in a particular order even though some of them may, at first glance, look like insects in other orders.

Before doing the exercises on the true bug (Order Homoptera) and the beetle (Order Coleoptera), study the two illustrations below to review the general structure for all insects.