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Zerynthia is a well studied genus with two readily recognized species, Z. rumina and Z. polyxena, distributed in southern and eastern Europe and northern Africa (Higgins and Riley, 1970). Both species have received attention from generations of European lepidopterists, and consequently, their life histories are well known. There are at least one or two available scientific names for nearly every population (Manley and Allcard, 1970). Zerynthia polyxena alone, for example, has more than 31 subspecies (Nardelli and Hirschfeld, 2002). Larvae of both species feed on Aristolochia, and their life history and ecology are also well known. Ford (1944a, 1944b) and Eisner (1974) proposed several morphological characters that can be useful in phylogenetic studies on Zerynthia and related genera. Intra- and interspecific hybridization between the two species has also been investigated by Descimon and Michel (1989) and Lux (1990).