PROTECTIVE RESEMBLANCES, AND MIMICRY 359 



parent. With the head and feelers concealed beneath the 

 wings, it makes the resemblance wonderfully exact. 



There are numerous instances of special protective 

 resemblance among spiders. Many spiders (Fig. 220) that 



FIG. 220. Spiders showing unusual ehapes and patterns, for purposes of 

 aggressive resemblance. 



live habitually on tree trunks resemble bits of bark or small, 

 irregular masses of lichen. A whole family of spiders, 

 which live in flower-cups lying in wait for insects, are white 

 and pink and party-colored, resembling the markings of the 

 special flowers frequented by them. This is, of course, a 



FIG. 221. A pipe-fish (Phyllopteryx) resembling sea-weed, in which it lives. 



special resemblance not so much for protection as for ag- 

 gression ; the insects coming to visit the flowers are unable 

 to distinguish the spiders and fall an easy prey to them. 



283. Warning colors and terrifying appearances. In the 

 cases of advantageous coloring and patterning so far dis- 



