Natural History
After mating, the male Parnassines produce a glue like substance that is used to seal the female genital opening and prevent other males from mating.
The pupae are typically attached to the substrate by the cremaster but with head up held by a silk girdle. The Apollos, however, pupate in debris on the ground and also build a loose cocoon. In the temperate regions, the winters are passed in a pupal diapause stage.
Read more about this topic: Swallowtail Butterfly
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