FORM AND FUNCTION 



277 



is about an inch long and a half-inch broad. The legs, 

 top of head, and prothorax are purple, the wing-covers 

 dark green with wine-red borders. 



The beetle, after being treated with cyanide, as in 

 the case of the grasshopper, should be boiled in water 



FIG. 212. Rummaging ground-beetle (Calosoma scrutator). Enlarged. 



until the parts separate easily. The different parts 

 can be readily separated under the lens upon the dis- 

 secting-stand. 



Upon a piece of white cardboard, eight by fourteen 

 inches, fasten neatly, with a good quality of glue, the 

 several parts in order, following the method shown in 

 Figure 213. 



Name the movable parts of the head. 



