The gay colours of the male butterfly help to attract the female and the duller colours of the female make them less likely to be caught by enemies before they have laid their eggs.

• 雄蝴蝶的鲜艳颜色有助于吸引雌蝴蝶，而雌蝴蝶的较暗淡的颜色可使它们在产卵之前不易被“敌人”捕获。