Although some butterflies are of the same species, they can appear in different colors and shapes in different seasons. For example, the summer form of the peacock-eyed butterfly Precis almana L. has no obvious sharp corners and clear eye stripes in the wings; but its autumn form has The sharp corners of the outer edges of the forewings are obviously protruding, the hip corners of the hind wings are long-stalked, the inner eye stripes of the wings have disappeared, the wings are yellow in color, and have dark wide stripes running through the middle, which resemble leaf veins. They are completely different from the summer-type color markings, so they have been mistaken for designated as another species. In the tropics, dry and wet forms of butterflies may be distinct and regular.
