12 INSECT LIFE. 



the abdomen is not well marked. Fig. 2 represents 

 a wasp with the three regions of the body separated, 

 and in Fig. 3 a locust is represented with its wings re- 

 moved so as to show the extent of each of these regions. 

 5. Make a copy on your sheet of notes of the 

 figure of a side view of a locust. 



LESSON II. 



THE PARTS OF A LOCUST (CONTINUFD). 



The Head, except the Mouth-parts. 



The head is the first of the three regions of the 

 body. It contains the brain of the insect and other 

 important organs ; but in these lessons we will study 

 only the outside parts of it. The head bears the 

 antennas, the eyes, and the mouth-parts. 



1. The antcnnce (an-ten'nce) are the two long, slen- 

 der organs attached to the head in front of the large 

 eyes. Make a drawing of one of them. The singu- 

 lar form of the word antennas is antenna (an-ten'na). 



2. Study the large eyes which are situated one on 

 each side of the head. Examine them with a lens, 



also with a microscope if you have 

 the use of one. The surface of the 

 eye when much magnified resem- 

 bles honeycomb in appearance (Fig. 

 4). Each of the six-sided divisions 



of the lar e e y e is a complete eye, 

 pound eye, greatly hence the large eyes are compound 



enlarged. 



eyes. 



3. In addition to the two large compound eyes a 

 locust has three simple eyes. There is one of these 



