To attract females, the males of Pieris napi, commonly known as Green-veined White, produce a pheromone cocktail that is reminiscent of fresh lemons.
The butterfly perfume contains apha-pinene, beta-pinene, myrcene, limonene, linalool, p-cymene and citral – all constituents of lemon oil.
The smell is detectable for humans. Who knew you could smell the butterfly as well as the flower it sits on?
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