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black caterpillar - Spodoptera ornithogalli

black caterpillar - Spodoptera ornithogalli
West Alexander, Washington County, Pennsylvania, USA
September 4, 2012
black shiny caterpillar on milkweed (swamp)


Moved from ID Request.

Yellow-striped Armyworm…
These do feed on milkweed.

See reference here.

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