Where’s Wildlife · Moth Field Guide

Ailanthus Webworm

Atteva aurea

A tiny moth with a bold orange, white, and black pattern, often spotted visiting flowers.

Select the photograph to browse all 2 field photographs.

MOTH FIELD NOTES

At a Glance

Family
Attevidae · tropical ermine moths [1]
Habitat
Fields, gardens, and edges near host trees [1]
Host Plants
Paradise trees (Simarouba) and tree-of-heaven (Ailanthus) — caterpillar food [1]
Adult food
Flower nectar [1]
Quick ID
Orange wings with black-bordered white spots [1]

Identification

The narrow forewings wrap tightly around the body at rest. White spots edged in black interrupt the orange background; slender antennae point forward. [1]

Field Photographs

Compare the markings in these field photographs. Select any image to browse the full gallery.

Life Cycle & Host Plants

Caterpillars feed together inside loose silk webs around host leaves. Several life stages may share a web. Native paradise trees are hosts in the far south; introduced tree-of-heaven supports populations farther north. [1]

A Seasonal Traveler

This moth cannot survive freezing winters and recolonizes northern areas seasonally. Tree-of-heaven is invasive: its role as a host is not a reason to plant it. [1]

Range & Sightings

Explore reported Ailanthus Webworm sightings. Observation records show where people have documented this moth and are not a complete range map.

Keep Learning

Sources & further reading

[1] Missouri Department of Conservation — Ailanthus Webworm Moth
Identification, host trees, flower visits, and seasonal movement.

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