Insect Lore Cup of Caterpillars with Deluxe Chrysalis Station Live Habitat Kit Refill Watch butterfly metamorphosis up close at home or in the classroom The entire process takes 21 to 30 days to complete Insect Lore proven bestseller for 50 years Includes a deluxe Chrysalis station Once your butterflies emerge, observe and feed them for a few days, then let them go! IMPORTANT NOTE! Please postpone your live order if daytime temperatures in your area are below 55 degrees or above 85 degrees Fahrenheit. Your caterpillars may not survive their journey to you in extreme heat or cold.