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HornwormsBullseye caterpillar?
July 23, 2009
Hi Lisa Anne and Daniel, even with this caterpillar’s distinctive markings I am unable to identify it. It was found on the grass stem (cannot say it was feeding) on a prickly pear/sagebrush steppe but near a riparian area.
You are my last, best hope for an i.d. and I have unbounded faith in you!
Thanks in advance.
Dwaine
outskirts of Casper, WY
Juanita Sphinx Caterpillar
Hi Dwaine,
We are thrilled to be able to return a favor since you always send us such awesome butterfly images that are already identified. The markings on your caterpillar are absolutely gorgeous, much like the weaving of a Persian rug. We quickly identified this Juanita Sphinx Caterpillar, Proserpinus juanita, on Bill Oehlke’s awesome website. Most Sphinx Caterpillars are characterized by a caudal horn, giving them the name Hornworm, but this species loses its horn on the molt between the forth and fifth instar according to the images posted by Bill. We are going to copy Bill Oehlke on this reply since your gorgeous caterpillar differs slightly in coloration from the example he has posted. Bill is also compiling comprehensive data on species distribution.
Juanita Sphinx Caterpillar
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