When raising lorquin's admirals, it is advisable to expose young caterpillars (specifically second instars) to 24 hours of light so that they will feed through to pupation and adult within a month or so.  However, if your third instar caterpillar starts to build a rolled-leaf hibernaculum, it is irreversibly committed to hibernate for the winter and resume feeding the next spring.  Click here for information on how to care for your hibernaculum during the fall and winter months.