GENERALITIES CONCERNING ARTICULATES. 127 



FIG. 68. 



TEGUMENTARY SKELETON OF A LOCUST, DISARTICULATED. C, head ; T. thorax ; 

 A, 'abdomen; I, lower lip; M, mandibles; m, jaws; n, antennae; I, pro- 

 thorax ; PI, first pair of feet ; II, mesothorax ; p n , second pair of feet ; as, 

 upper wings ; III, metathorax ; p m , third pair of feet; ai, lower wings ; 1 to 

 10, joints of the abdomen ; O, appendages. 



