This behavior and their markings, at first glance, mimic bees. Adult females of some species kill prey immediately by stinging them and feeding on their body fluids. They also deposit eggs through their long, thin ovipositors into host insects. The parasitic larvae feed and develop in their hosts, emerging as adults. Adults of some species are predaceous, but they feed primarily on pollen and nectar.
Lacewings are green or brown.
The careful observer will spot the small green or grey eggs of lacewings held above plant stems or leaves on fine stalks. The nymphs, which are also effective natural enemies, are wingless and change color from yellow-orange to brown as they mature. Attract minute pirate bugs with goldenrod, yarrow, daisies, and a plot or border of alfalfa. Others are beneficial in their function as decomposers, aiding in nutrient recycling. Few are pest species.