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Caterpillar ID - Lymantria dispar

Caterpillar ID - Lymantria dispar
Natural Bridge State Park, Sauk County, Wisconsin, USA
July 5, 2009
Looking for help identifying this. There were five or six of them on the same tree.

Moved from ID Request.

Placing in the Guide until it can be considered for inclusion in the Arthropod Pathogenic Fungi article. Can be frassed later if not needed.

Killed by fungus
there's a fungus (Entomophaga) that kills gypsy moths and causes them to dangle from trees like this. Blegh!

I'm not certain, based on this photo, but I think this may actually be a victim of a nuclear polyhedrosis virus. The telltale sign of the fungus (Entomophaga maimaiga) is that the caterpillar's prolegs are extended to the sides. The caterpillar also typically hangs vertically from the tree.

Possible virus, huh?
That's what I love about this site... No end to the education to be had.

Gypsy Moth - Hodges#8318 (Lymantria dispar)
yours looks sick or dead..


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