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[Image Number] 2 [Image (Click to Enlarge)] Fly haltere [Image Viewed] 354 [Caption] 
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").
Insects IV - True Flies, Dragonflies and insects with "fly" in their name
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