DESCRIPTION
Vintage engraving of the insect order Diptera, True flies. True flies are insects of the order Diptera, possessing a single pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax. [b]View More:[/b] [url=http://www.istockphoto.com/file_search.php?action=file&lightboxID=5173360][img]http://www.walker1890.co.uk/istock/istock-nhistory.jpg[/img][/url][url=http://www.istockphoto.com/file_search.php?action=file&lightboxID=2789749][img]http://www.walker1890.co.uk/istock/istock-engraving.jpg[/img][/url]