. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 878 Rural School Leaflet. out for yourselves whether the apple tree "worm" will eat maple leaves or whether the forest tent-caterpillar found commonly on maple trees will eat leaves taken from an apple tree. One of the inost interesting things to notice in the study of larvae or cater- ])illars is that they occasionally appear in bright ne
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 878 Rural School Leaflet. out for yourselves whether the apple tree "worm" will eat maple leaves or whether the forest tent-caterpillar found commonly on maple trees will eat leaves taken from an apple tree. One of the inost interesting things to notice in the study of larvae or cater- ])illars is that they occasionally appear in bright new coats, and we find the old ones have been cast aside. It is neces- sity, not pride, that leads them to do this. An insect's skeleton is on the outside of its body; its skeleton or skin becomes too small for it, and if it could not be shed once in a while, there would. Fig. 14.—Chrys-a-Uds of the moitrn ing-cloak butterfly not be room for the little creature to grow. The Pupa Of all the forms in which the moths and butterflies appear, the pupa is the strangest. Although we speak of this period in the life of the insect as one of rest or sleep, it is the time when the most wonderful changes take place in its body. The queer objects that you see illustrated in Fig. 14 are the pupae of the mourning-cloak butterfly. When the caterpillars were about to shed their coats for the last time, they hung themselves head downward from a • twig by msans of a silk but- ton which they had spun. Then they cast off their skins, leaving the chrysa- lids or naked pupae hanging; protected from birds by their spiny form and pro- tected from many enemies, even from young naturalists, by their wood- brown color which so closely resembles the support from •^ Fig. 15.—Cocoon of the cecropla tnoth. It is often attached suspended. to the twig of a fruit tree. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
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