Desert White

"Most members of this family are white or yellow and are characterised by medium size, fully functional forelegs, and the forked claws on the tips of the legs. They also have pigments in the wings that either reflect or absorb ultraviolet light, such that the wings produce a variety of attractive patterns. It is thought that the ultraviolet pattern on the wings is used by the male and female desert white to identify the opposite sex during courtship." ~arkive