About Fall Webworm
A native North American moth whose caterpillars build communal silk webs on tree branches. It has become invasive in Europe and Asia.
Did You Know?
Unlike tent caterpillars, fall webworm nests enclose the foliage the larvae are feeding on.
How to Identify Fall Webworm
Fall Webworm (Hyphantria cunea) belongs to the order Lepidoptera, family Erebidae. Adults typically measure 25-42 mm wingspan.
Fall Webworm Habitat
Fall Webworm is found in grasslands habitats, particularly across North America, Europe, Asia. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Fall Webworm Diet and Feeding
Fall Webworm is a herbivore, feeding on plant material including leaves, stems, flowers, and other vegetation. Herbivorous insects play a significant role in ecosystems by influencing plant growth and serving as a food source for predators.
Where Is Fall Webworm Found?
Fall Webworm can be found in North America, Europe, Asia, where it inhabits grasslands environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Fall Webworm can be found
Is Fall Webworm Dangerous?
Fall Webworm is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Fall Webworm Role in Nature
Fall Webworm is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Fall Webworm
What does Fall Webworm look like?
The Fall Webworm typically measures 25-42 mm wingspan.
Where is Fall Webworm found?
The Fall Webworm is found in North America, Europe, Asia and typically inhabits grasslands environments.
What does Fall Webworm eat?
The Fall Webworm feeds on plant material including leaves, stems, and other vegetation.
Is Fall Webworm dangerous to humans?
The Fall Webworm is generally harmless to humans. It does not bite or sting and poses no significant health risk.
Is Fall Webworm endangered?
The Fall Webworm is currently classified as Not Evaluated by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.
What is an interesting fact about Fall Webworm?
Unlike tent caterpillars, fall webworm nests enclose the foliage the larvae are feeding on.
Cite This Page
APA:
InsectDiscover. (2026). Fall Webworm (Hyphantria cunea). Retrieved from https://insectdiscover.com/insect/fall-webworm
MLA:
"Fall Webworm." InsectDiscover, https://insectdiscover.com/insect/fall-webworm.