BRANCH ARTHROPODA. 



small "red-spider-like'' animals, troublesome to florists, 

 and often seen on the bark of trees, appearing as mere 

 animated dots, represent the Mites. Others are found in 

 water, sugar, and on cheese. The Itch-mite burrows in 



PIG. 90. 



FIG. 91. 



Alar cop' IKS xca bie'i. 

 Itch-mite. (Magnified.) 



Ix it' des bo' vis. Western Cattle tick. 



the flesh, multiplies rapidly, and produces the loathsome 

 disease which gives it its name. The Ticks are also par- 

 asitic, some infesting man. Quickly burrowing beneath 

 the skin, they can not readily be extracted, without leav- 

 ing behind portions of the jaws, which, if allowed to 

 remain, soon produce inflammation, often resulting in 

 serious ulcers. 



ORDER PEDIPALPI 



Bu' thus carotin la'nus. Scorpion. 



(ped I pal' pi). 



The Scorpions 

 have the body elon- 

 gated, segmented, 

 and terminated by a 

 spine-like sting, from 

 near the apex of 

 which poison may 

 ooze through two 

 small pores.* The 



* Though its wounds rarely prove fatal, they are nevertheless extremely pain- 

 ful. Ammonia is said to be the antidote. 





