4 APPLIED ENTOMOLOGY 



fied to serve as a poison claw. The numerous legs present in these 

 animals has resulted in their receiving the common name "centipede." 



Fig. 5. — Hairy Spider (Arachnida); about Fig. 6. — Large bodied Spider (Arac^nida); 

 natural size. (Original.) about natural size. (Original.) 



Fig. 7. — Adult female castor-bean Tick Fig. 8. — Adult female European dog 



(Arachnida); natural size. (From U. S. Tick (•4rac/?ni(ia); natural size. (From U. S. 

 D. A. Farm. Bull. 1057.) D. A. Farm. Bull. 1057.) 



Fig. 9. — Grasshopper (Insecta); with wings spread. (From Folsom.) 



The Arachnida (Figs. 5, 6, 7 and 8) generally have the segments of the 

 body grouped into two sections called the cephalothorax and abdomen. 



