Adult females are maggot-like with yellowish-white soft bodies 19 to 23 mm long and small tufts of hair near the end of the abdomen.

The evergreen bagworm thrives in the eastern United States as far west as Nebraska, north into New England, and bordering the Gulf of Mexico south throughout Texas.

Mature larvae may remain in the host tree or drag their case nearby before attaching themselves for the pupa stage.

Cypress, juniper, pine, spruce, apple, birch, black locust, elm, maple, poplar, oak, sycamore, willow, and over 100 other species can also be eaten.

The wind often blows the larva to nearby plants, beginning its new case from silk and fecal material before adding leaves and twigs from its host.

She has no eyes, legs, wings, or antennae and can't eat, but she emits a strong pheromone to attract a mate.