Some Luna caterpillars will use a leaf wrap while others
descend to spin up among whatever ground protection they can find. Mature larvae
"clear their guts" with a loose, runny stool just prior to
cocooning.
EDnote: leaf wrap = sarcophagus?
Like the adult moth the larva instars are pale green--of
possible significance given the novel's association of green with death.
Cf Hazel
Don jOHNSON