Pests eaten:
aphids, caterpillars (small), leafhoppers, mealybugs, mites, psyllids, spider mites, thrips, whiteflies and some insect eggs

Some favorite plants:
caraway, fennel, dill, coriander, Queen Anne's lace, fernleaf yarrow, golden chamomile, cosmos, tansy, cornflower

Lacewings are a small green insect with four lacey, almost clear wings. As adults they are 1/2-3/4" in size and can often be seen flying during the evening. They lay small oval, green eggs, with each egg attached to a thin stalk. The eggs turn brown before hatching into larvae. The larvae are small, multicolored with jagged sides. Lacewings overwinter in leaf winter as adults.

UC IPM Online
Cornell University's Biological Control: A Guide to Natural Enemies in North America