Columbia l columbia larvae are very similar to cecropia and other Hyalophora species but may be distinguished by three pairs of enlarged red thoracic tubercles. Cecropia have but two pairs of red-orange enlarged dorsal, thoracic scoli. Scan of fifth instar larva on larch by Bill Oehlke. Cocoons are compact and usually woven longitudinally against a branch or trunk from 6-15 feet above the ground. The cocoons have gold and silvery striations resembling the larch bark.
Pupae tend to have little room within a smooth, denser inner cocoon.
Click on caterpillar to view a large image and access a list of caterpillar food plants. Click on notes to view seasonal summaries on columbia columbia. Search WWW Search pei.sympatico.ca Google is one of my favourite Search Engines and seems to offer the most extensive listing of Saturniidae, Sphingidae and butterfly sites. Use your back arrow to return to this site after using the Google search box to the left. Clicking on radio button to left of pei.sympatico.ca will limit your search to this site.