All photographs copyright (2003-2013) by Kris H. Light

<b>Fly haltere</b>
Fly haltere
True flies have only 2 wings, they are in the Order Diptera. The other two wings have been reduced in size and shape to small stalks with a knob, called "halteres". These structures act as stabilizers for the insect.
The other way to know if an insect is a true fly is in its name, if the word "fly" is a separate word it is a fly (i.e. "house fly"). If the word "fly" is connected it is not a true fly (i.e. "dragonfly").