Orcon GREEN LACEWING Pre-Paid Certificate (1,000 Eggs) - Case of 5Case of 5 Green lacewing larvae are known as aphid lions because they can devour as many as 1,000 aphids per day. They remain as larvae for up to 21 days, making hearty meals of mealybugs, spider mites, caterpillars, thrips, leaf hoppers, whitefly larvae, a wide variety of moth eggs and just about any other soft bodied pest. The adult green lacewing feeds only on pollen, but it will immediately begin laying eggs. Shipped as eggs; 1,000 in an order.