Wing Interference Pattern on excised wings of male/ female pair of two species of Tipuloidea. Excised wings of a male/ female pair of two species of crane flies. Wings were excised, flattened between a glass slide and cover slip, and photographed under a microscope using transmitted light A Cylindrotoma distinctissima female B Cylindrotoma distinctissima male C Gnophomyia tristissima female D Gnophomyia tristissima male. Scale bars: 1.0 mm.