The second and third segments have a pair of wings attached to them, as well. At the end of each leg, is a tarsus, which grips the vegetation. Organs for tasting sweet liquids are also located on the tarsi. All butterflies and moths have 4 wings- 2 hindwings and 2 forewings. They move by muscles and by changing the shape of the thorax.
Veins give the wings structure, strength and support.
The abdomen consists of 11 segments, the last 2 of which are joined. On male monarchs, you can see a pair of claspers on the end of the abdomen. Their function is to hold the female during mating.