The Fly.
Above the mouth are two knobs. These knobs are two big eyes, one on each side of the head. Between the two big eyes they have some little ones, on the top of the head.
You see insects are as well supplied with eyes as crabs are with legs.
The back part of the body of many insects is made fast to the middle part by a small joint, or thread. That is because these insects need to bend, or even double up, in some of their work.
The Hook-wing Order is divided into two great kinds.
The Ant.
The insects of one kind carry a little saw. The others carry a sword. The sword is a sting. The saw is to cut up leaves and wood to make nice soft nests or houses for the eggs. The sword is to fight with, or to kill things for food. Among the saw-carriers is the fine, long fly, called a saw-fly. Bees, ants, wasps, and others carry the sting.
Get one of these insects, and you will see all the parts of which I have told you. Let us first take an ant to look at.
The head of an ant seems very large for its body, and the eyes seem very large for the head. They look as if they would be heavy for the little ant to carry.