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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Silkworm, Sphinx, and Royal Moths (Bombycoidea) » Giant Silkworm and Royal Moths (Saturniidae) » Royal Moths (Ceratocampinae) » Citheronia » Regal Moth - Hodges#7706 (Citheronia regalis)
Photo#684722
Caterpillar - Citheronia regalis
Copyright © 2012 Curtis Lehman

Caterpillar - Citheronia regalis
Mingo Creek County Park, Washington County, Pennsylvania, USA
August 4, 2012
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Contributed by Curtis Lehman on 4 August, 2012 - 7:20pm

Preparing to molt
I believe this is the next-to-the-next-to-the-last-instar, and in the process of preparing to molt. I went back over a week later and found it in the process of molting into final instar. I'd say it's third instar but I'm not certain how many instars these have. You can see that some of the horns are transparent as the caterpillar prepares to shed....
More pictures of this individual as it grew older can be found here
… Monica Miller, 16 August, 2012 - 8:33pm login or register to post comments

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