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Two rare, natural colouration variants of the fifth instar P. machaon larvae. These individuals are offspring of two different females that were wild-caught in southern Sweden. (a) A uniformly green larva (but with orange spots present) that has lost the ability to synthesize the black pigment, (b) a black larva in which the black, orange-studded stripes are so broad that the normally green area is completely covered by black.
