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? [Illustration: FIG. 146.—HEAD OF BUTTERFLY. ] Describe the _scales_ from a butterfly’s wings as seen under microscope (144). How are the scales arranged on moth’s wing (145)? By what part is scale attached to wing? Do the scales overlap? Study butterfly’s head and _proboscis_ (Figs. 146–148). What shape is compound eye? Are the antennæ jointed? Is the proboscis jointed? Why not call it a tongue? (See text.) Which mouth parts have almost disappeared? What is the shape of cut ends of halves of proboscis? How are the halves joined to form a tube? If you saw a butterfly on a flower, for what purpose would you think it was there? What, if you saw it on a leaf? How many spots on fore wing of female cabbage butterfly? (Fig. 124, above.) Does the silkworm chrysalis fill its cocoon? [Illustration: FIG. 148.—HEAD OF BUTTERFLY (side view). ] [Illustration: FIG. 147.—SECTION OF PROBOSCIS of butterfly showing lapping joint and dovetail joint. ] [Illustration: FIG. 149. ] [Illustration: FIG. 150. ] [Illustration: FIG. 151. ] [Illustration: FIG. 152. ] [Illustration: FIG. 153. ] [Illustration: FIG. 154. ] [Illustration: FIG. 155. ] [Illustration: FIG. 156. ] [Illustration: FIG. 157. ] [Illustration: FIG. 158.—Anatomy of bee. ] FIGS. 149–161. =Illustrated Study of Bees and their Kindred.=—Head of worker (Fig. 149): _o_, upper lip; _ok_, chewing jaws; _uk_, grasping jaws; _kt_, jaw finger; _lt_, lip finger; _z_, tongue. How do heads of drone (150) and queen (151) differ as to mouth, size of the two compound eyes, size and position of the three simple eyes? Is the head of a worker more like head of drone or head of queen? Judging by the head, which is the queen, drone, and worker in Figs. 154–156? Which of the three is largest? Smallest? Broadest? Figure 152 shows hind leg of worker. What surrounds the hollow, _us_, which serves as pollen basket? The point, _fh_, is a tool for removing wax which is secreted (_c_, Fig. 157) between rings on abdomen. In Fig. 158, find relative positions of heart, _v_, food tube, and nerve chain. Is crop, _J_, in thorax or abdomen? In this nectar is changed to honey, that it may not spoil. Compare nerve chain in Fig. 132. [Illustration: FIG. 159.—Ichneumon fly. ]