Green lacewings are definitely something you should be happy to see in your garden.
The tiny larvae are also known as “aphid lions” because of their voracious appetite.
There is no better predator to consume vast quantities of eggs and the soft bodies of aphids, mealy-bugs, spider mites, leaf hopper nymphs, caterpillar eggs, scales, thrips, and white-flies.
Once they mature into adults their diet changes to nectar, pollen and the honeydew collected from aphids.
One of the bonuses of using lacewings for pest prevention is that they stay put and don’t migrate like other traditionally used beneficial insects like lady beetles. They also are farmed instead of wild-harvested. They’re simply a much more sustainable option for your garden.