Green lacewings are known as "aphid lions" because of their voracious appetite for aphids. In fact, it is the lacewing larva that destroy garden pests. Lacewing larvae consume a variety of insects in vast quantities, including aphids, mealy-bugs, spider mites, leafhopper nymphs, caterpillar eggs, scales, thrips, and white-flies.
The larvae attack the eggs of its prey with a paralyzing venom, and draw out the body fluids of the helpless victim. Adult green lacewings are harmless, feeding primarily on pollen and honeydew.