. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 33^ Handbook of Nature-Study THE PROMETHEA Teacher's Story I HE promethea is not so large as the cecropia, although the female resembles the latter some- what. It is the most common of all our giant silk-worms. Its caterpillars feed upon wild cherry, lilac, ash, sassafras, buttonwood and many other forest trees. During the winter, leaves may often be seen hanging straight down from the branches of wild cherry, lilac and ash. If these leaves are examined, they will be found to be wrapp
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. 33^ Handbook of Nature-Study THE PROMETHEA Teacher's Story I HE promethea is not so large as the cecropia, although the female resembles the latter some- what. It is the most common of all our giant silk-worms. Its caterpillars feed upon wild cherry, lilac, ash, sassafras, buttonwood and many other forest trees. During the winter, leaves may often be seen hanging straight down from the branches of wild cherry, lilac and ash. If these leaves are examined, they will be found to be wrapped around a silken case containing the pupa of the promethea. It is certainly a canny insect which hides itself during the winter in so good a disguise, that only the very wisest of birds ever suspect its presence. When the promethea caterpillar begins to spin, it selects a leaf and covers the upper side with silk, then it covers the petiole with silk, fastening it with a strong band to the twig, so that not even most violent winter winds will be able to tear it off. Then it draws the two edges of the leaf about itself like a cloak as far as it will reach, and inside this folded leaf it makes its cocoon, which always has an opening in the shape of a conical valve at the upper end, through which the moth. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Comstock, Anna Botsford, 1854-1930. Ithaca, N. Y. , Comstock Publishing Company
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