Notes should be made by the pupil upon the change of color and markings after the different molts, and the process of molting should be described.
Lesson IV. The Pupa. [Fig. 149], d.
In ordinary seasons, about the middle of May, the caterpillars get their growth. If those in the breeding cage have died or have not thrived, bring in a few full-grown caterpillars from the orchard and put them on some branches in the breeding cage. Give them fresh food each day as long as they will eat; also place some sticks and chips on the bottom of the breeding cage for the worms to "spin up" on. Then have the children observe the following things:
How do the caterpillars begin their cocoons?
Where are the cocoons made?
How are they made?
Draw a picture of a cocoon.
About a week after a cocoon is made, open it carefully with a pair of scissors so as not to hurt the inmate, and let the pupil see the change that has come over the caterpillar.
Have the pupils describe the pupa.
Let the pupils make drawings of the pupa.