1. (green lacewing) An insect (family Chrysopidae) that has a pale green body, iridescent, often green wings, and prominent reddish-golden eyes. Their larvae are predatory on aphids and plant lice.

2. (brown lacewing) An insect (family Hemerobiidae) that resembles the green lacewing, differing only in the wing venation. There are many species of lacewings, found worldwide.