Ailanthus Webworm

Ailanthus Webworm Nests

Ailanthus Webworms (Atteva aurea) feed exclusively on the non-native, highly invasive, misleadingly named Tree of Heaven (Ailanthus altissima).  They are the larval (caterpillar) stage of a beautiful ermine moth (Family Yponomeutidae).  In my opinion, this is one of the most beautiful moths found in Ohio.  Multiple overlapping generations occur each season so it is common to find both moths and caterpillars active at the same time.  Indeed, I took pictures posted with this report of the moth on stiff goldenrod (Solidago rigida) the same day that I took shots of...

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Authors
Joe Boggs
Ailanthus Webworm Moths boggs.47@osu.edu Sat, 06/25/2016 - 13:35

Ailanthus webworm moths (Atteva aurea) are flying to porch lights in southwest Ohio.  In my opinion, this is one of the most beautiful moths found in Ohio both because of their coloration and because of what their caterpillars eat.  Caterpillars of this ermine moth (Family Yponomeutidae) feed exclusively on the non-native, highly invasive Tree of Heaven (Ailanthus altissima).

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Published on
Authors
Joe Boggs