Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. Superfamily Tabanoidea
are insects in the order Diptera. Families include the Rhagionidae, commonly
called snipe flies and the Tabanidae, commonly called horse flies. True flies
are insects of the order Diptera (di = two, and ptera = wings). They possess a
pair of wings on the mesothorax and a pair of halteres, derived from the hind
wings, on the metathorax.