"Cocoon gathering in the fall is one of the most delightful occupations imaginable. When flowers are gone, when birds have migrated, when brilliant foliage piles knee deep underfoot, during those last few days of summer, zest can be added to a ramble by a search for cocoons. Carrying them home with extreme care not to jar or dent them, they are placed in the conservatory among the flowers. They hang from cacti spines and over thorns on the big century plant and lemon tree. When sprinkling, the hose is turned on them, as they would take the rain outside. Usually they are placed in the coolest spots, where ventilation is good.

If they are kept cool enough that they do not emerge until May or June, then you have one of the most exquisite treats nature has in store for you, in watching the damp spot spread on the top of the cocoon where an acid is ejected that cuts and softens the tough fibre, and allows the moth to come pushing through in the full glory of its gorgeous birth. Nowhere in nature can you find such delicate and daintily shaded markings or colours so brilliant and fresh as on the wings of these creatures of night.

If you want to photograph them, do it when the wings are fully developed, but before they have flown. They need not be handled; their wings are unbroken; their down covering in place to the last scale; their colours never so brilliant; their markings the plainest they ever will be; their big pursy bodies full of life; and they will climb with perfect confidence on any stick, twig, or limb held before them. Reproductions of them are even more beautiful than those of birds. By all means photograph them out of doors on a twig or leaf that their caterpillars will eat."

-- "Moths of the Limberlost," by Gene Stratton-Porter