The wing structure of a butterfly consists of four wings, two fore wings, and two hind wings. The wings are covered with scales, which give them their bright colors and intricate patterns. The wings are supported by a complex system of veins and membranes that give them their shape and help them to maintain their structure. The wings are connected to the butterfly's body by strong muscles that allow the butterfly to move them rapidly and with great precision. The wings are also lined with sensory receptors that enable the butterfly to detect changes in temperature, humidity, and other environmental factors.