42 INSECT LIFE. 



name is from two Greek words : one, kolcos, meaning 

 a sheath, and the other, ptera, meaning wings. It re- 

 fers to the fact that in this order in place of the front 

 wings there are two horny sheaths which cover the 

 hind wings. 



3. Prepare a label like that given below. 



y yy s~& '' ' '* 



''e<*fae> 



10>&e&4ise>t4Z, / "K/^ 2 - -e=-&ji- <te= 

 / I** / 



4. Pin this label into the upper left-hand corner 

 of your case, and arrange your beetles below the 

 label in rows extending from left to right, putting 

 only one kind of beetle in a row. 



5. As you collect more beetles place them with 

 these, putting each kind in its proper row. 



6. Select one of the larger beetles in your collec- 

 tion and make a drawing representing the dorsal 

 view of it. 



LESSON XIX. 



THE ORDER COLEOPTERA (CONTINUED). 



1. Carry a small cyanide bottle in your pocket, 

 and, whenever you have an opportunity, collect any 

 beetles that you can find, and add them to your col- 

 lection. 



2. Observe that in each kind of beetle the winsrs 



O 



are always of the same size. The wings of these in- 

 sects are not gradually developed as they are with 

 locusts, crickets, and bugs; but the young of beetles 



