males are dark brown; the sides of the thorax and the front half of the wings are margined with yellow. adult males are fully winged, while females have conspicuous wing pads (actually short wings like that of the female oriental cockroach), which are functionless. wings of the male are longer than its body, while wing pads of the female cover only one-third to two-thirds of the abdomen. the males fly swiftly but do not have the ability to sustain themselves in the air for long periods.