A cool August morning kept this lacewing inert for a bit of time. Mature lacewings consume nectar. The larvae however are extremely beneficial.
Green Lacewing larvae are voracious eaters of the eggs and immature stages of many soft bodied insect pests, including several species of aphids, spider mites (especially red mites), thrips, whitefly, leafhoppers, some beetle larvae, eggs and caterpillars of pest moths, and mealybugs. The larvae will eat for 2-3 weeks, spin a cocoon, and 10-14 days later, emerge as adults.
Keep them around for garden and for your houseplants kept outdoors for the summer. Ferrisburgh, Vermont 08/08/2007