INSECT SITTERS AND GNA VVERS. 241 
the creeping, gnawing, spinning caterpillar ! The two 
lips of the caterpillar with the silk-spinning tube (sp, 
Fig. 80) in the lower one, are reduced to mere frag- 
ments, the horny mandibles (in m), no longer needed 
now the chief feeding time is past, have almost dis- 
appeared, while the two inner jaws are drawn out into 
long hollow channels and fit together so as to form 
the delicate tube (/) which is to suck honey from the 
flowers. The tiny eyes (e) of the caterpillar, if they 
are still to be found in the forehead, are quite in- 
significant when compared with two large, many- 
windowed eyes (e e] which now stand out on each side 
of the head to warn the rapidly-flying insect of danger 
from all directions. The tiny stunted antennae of the 
caterpillar have become long and delicate. The 
shoulders, grown firm and strong, carry the six slender 
legs, and two pairs of wings which are worked by 
powerful muscles ; and over these wings is spread a 
carpet of beautiful scales, each one fitting by means of 
a little tube into the wing, and the whole making a 
brilliant pattern to attract the eyes of the mate 
which the butterfly now wishes to find. The abdomen 
has lost on the outside the cushion feet which are no 
longer needed, while within, the long digestive tube 
which it had as a caterpillar has become quite small, 
making room for an apparatus for forming and laying 
eggs. 
And yet though such a total remodelling has 
taken place, there has been no such thing as death 
and new life between the caterpillar and the butterfly. 
Though the chrysalis hung in such a still and death- 
like form, it was the same living insect, breathing 
almost imperceptibly, and able to move slightly if 
