Ladybugs (Hippodamia convergens) eat over 5,000 Aphids and other soft-bodied pests during their one-year lifetime. Ladybugs are one of the few beneficial insects that can be stored, dormant, in the refrigerator for up to a few weeks, depending on the time of year, as long as they don't freeze or dry out. This allows you to use a few at a time, as needed. Minimum order 1500 per bag. Required two day shipping($16.75) is included in price. Numerous other beneficial insects available-Call or email for more info or for larger orders.