Ailanthus Webworm Moth – Identification

Q:  This bug was on my storm door the other day. The pattern looked kind of like an elongated ladybug.

A: It’s an ailanthus webworm moth. The caterpillar feeds on the leaves of a “trash tree” named Tree-of-Heaven, Ailanthus altissima.

The moth is a pollinator and I see many of them on the flowers of my sedum plants each fall.

There is no need to control them.

Ailanthus moth

ailanthus webworm moth

ailanthus webworm moth

ailanthus webworm moth

ailanthus webworm moth

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