Pale swallowtail pupa.  In order to get pupae to emerge after overwintering, place pupa in suitable emergence container, and provide long day photoperiod and intermittant spritzing of water.  Unfortunately, there are many desert species of butterflies that winter as pupae and extend diapause for several years.  Even if you expose your pupa to ideal moisture both during and after the overwintering cycle.  If your pupa does not emerge after one winter.  You may need to send it through another cycle of 30 days of warm/90-150 days of cold.