Subject: orange caterpillar
Location: Flux canyon, Arizona
January 14, 2014 9:34 am
I’ve scrolled around the internet a lot and so far have not found a pic of this caterpillar.
It was crawling around high grasses in Flux Canyon, southern Arizona….near the town of Patagonia.
I saw it in October…..
Signature: Susan Warner
We quickly identified this Caterpillar’s family as the Giant Silkworms, Saturniidae, and once we established that, identifying this striking caterpillar as Oslar’s Oakworm, Anisota oslari, on BugGuide did not take long. According to BugGuide: “Larva – last instars are brick red” and “Larvae are known to feed on oaks, including Mexican blue oak (Quercus oblongifolia), scrub oak (Q. turbinella), and Emory oak (Q. emoryi) .” There are several species in the genus in the eastern US including the Orange Striped Oakworm.