NEAR RELATIVES OF INSECTS. 



237 



of seven segments; and the post-abdomen, slender and 

 tail-like, at the end of which is a poison sting. 



The false scorpions have no such differentiation of 

 the abdomen, and there is no sting at the anal end of the 



abdomen. False scorpions j 



live under tree bark, in 

 mosses, or they may occa- 

 sionally be found between 

 the leaves of some book 

 that has lain unused for a 

 long time. The true scor- 

 pions may be found in 

 sandy regions, around old 

 stone quarries, or other 

 places not usually fre- 

 quented by their human 

 neighbors. (Fig. 97.) 



Scorpions bring forth 

 their young alive, and the 

 young are carried about 

 by the mother for some 

 time. They attach them- 

 selves to the mother . by 

 their pincer-like mandi- 

 bles. The adult scorpions 



FIG. 97. A scorpion, Buthus. Natural 

 size. (Folsom.) 



are nocturnal, and feed 

 upon spiders and insects, 

 which they first sting to 

 death. 



The whip-tailed scorpion is found in the far South- 

 west, New Mexico and Arizona. This is the largest of 

 the scorpions, measuring four or even five inches in length. 

 The palpi are enormously enlarged into stout pincers 



