The origin of the wing surfaces may have been display, and could have derived form whatever source, e. g., from movable gills of an aquatic insects, as proposed by Kukalova-Peck, or appendages growing from the insects legs, as has been suggested. If we supp
ose that such a wing surface, of whatever source, becomes connected to a sound vibrator in the thorax of an insect, then we can see a possible origin of the movable wing. Through competition? the insect would evolve aerodynamic wing behavior and acquires li
ft and later controlled flight.
But if we suppose that a wing surface, of whatever source, becomes connected to
a thoracic sonic vibrator then that is nothing other than a movable wing.
Through competition? the insect would evolve aerodynamic wing behavior and acquires lift and later controlled flight.