Lacewing n. (Zool.) Any one of several species of neuropterous insects of the genus Chrysopa and allied genera. They have delicate, lacelike wings and brilliant eyes. Their larvae are useful in destroying aphids. Called also lace-winged fly, and goldeneyed fly.
... is, this pretty fairy hides by day and comes out at night to lay its eggs. Like the May fly, the adult lacewing does not eat. It is a helpless little beauty, though it has one powerful means of defence, as you will ... — The Insect Folk • Margaret Warner Morley