WARNING COLORS, WITH EXAMPLES 



153 



The Curious Puss-Moth 

 Caterpillar 



NE August evening, as 

 my lantern light flashed 

 among some willow 

 bushes, I interrupted a 

 feast which the puss cater- 

 pillar was enjoying on one 

 of the leaves. By referring 

 to the two photographic 

 illustrations one may get a 

 very good conception of 

 this green caterpillar. When 

 touched on its back it is 

 found to be highly sensitive. 

 The excitement of such 

 treatment is sufficient to 

 cause both ends of its body 

 to curve outwards in a very 

 curious manner, at the same 

 time presenting a singular 

 display of its ability to 

 protect itself in the follow- 

 ing manner : There are two 

 tail-like appendages at the 

 end of the body which are 

 extended straight out behind when feeding, as shown in the 

 initial figure; but under excitement the appendages separate 

 and are quickly jerked upwards, each one protruding an orange- 

 colored lash-like thread, as shown on page 155. 



The caterpillar is portrayed on the willow in two attitudes. 

 The first shows its ordinary resting position after feeding; the 

 second, the insect under a moderate degree of excitement 

 with the whip lashes thrust out. The function of these 

 organs is considered useful in temporarily arresting the 

 attacks of small Hymenoptera. Under stress of being attacked 

 by these dreaded enemies, it has another means of defence 



