April 9, 2010
Picture taken last summer in our yard in Tucson, Arizona. I remember looking it up and found it once, but lost the ID. I think it fed on ironwood. Found a couple specimens crawling around. Can’t remember the month, but thinking it was late summer. Most distinctive were the mirror-like scales running the length of the body.
Despite the name Syssphinx hubbardi, the Hubbard’s Small Silkmoth Caterpillar is not a Sphinx in the family Sphingidae, but a Royal Moth in the tribe Ceratocampinae. BugGuide reports this species from Arizona and New Mexico, though it is also known from California, Nevada and Texas.