Oakworms

Definition

The caterpillars (larvae) of moths in the genus Anisota (family Saturniidae), named for their specialized feeding on oak foliage and their status as significant defoliators of Quercus species.

Etymology

From 'oak' + 'worm', reflecting host-plant specificity and the traditional use of 'worm' for caterpillars.

Example

Late-instar Anisota senatoria oakworms feed gregariously on white oak leaves, stripping branches bare before pupating in soil.

Synonyms

• Anisota larvae

Related Terms

• defoliator
• Saturniidae
• Quercus
• caterpillar
• gregarious feeding

Usage Notes

Strictly refers to Anisota caterpillars in technical usage, though the term occasionally appears more loosely for other oak-feeding larvae. Distinguished from 'oak caterpillar' (generic) and 'looper' (Geometridae) by family affiliation and feeding behavior. Adults are called 'oakworm moths' or by genus/species names.