Fig. 143.—Life History of Silkworm.
Fig. 144.—Scales from Butterflies’ Wings, as seen under microscope.
Fig. 145.—Scales on Moth’s Wing.
To the Teacher: These illustrated studies require slower and more careful study than the text. One, or at most two, studies will suffice for a lesson. The questions can be answered by studying the figures.
Figs. 141–148. Illustrated Study of Lepidoptera.—Study the stages in the development of codling moth, silkworm moth, and cabbage butterfly.
Where does each lay its eggs? What does the larva of each feed upon? Describe the pupa of each. Describe the adult forms. Find the spiracles and prolegs on the silkworm. Compare antennæ of moth and butterfly. Which has larger body compared to size of wings?
