Family Pyralidae: Pyralid moths. There are, worldwide, five subfamilies and at least 6,150 species. North America has approximately 565 species in five subfamilies.

The celery webworm is a pest on celery and alfala, among other vegetable and fodder crops [4].

The Pyralids are agricultural pests; some are leaf tiers or leaf rollers; the majority are borers in stems, seeds, buds, or flowers. Some are wood borers in the cambium layer, others feed on combs in bee hives or on dried plant materials. Many economically important species: Indian meal moth, Clover hay-worm, Zimmerman pine moth, Sunflower head moth.