Paper Wasps (Polistes spp.) at Audubon House work on a nursery for their young. Note the single eggs in the open chambers. The wasp at top is working downward to expand the nest, while the wasp down below puts the finishing touches on the egg chambers in the interior of the nest. Paper Wasps feed on plant nectar and help pollinate plants. They also prey on insects, especially caterpillars, to feed to their young. Paper Wasps get their name from the paper-like nest they build.