94 



Lessons m Zoology. 



The beetle has a pair of compound eyes. It has a 

 little flat piece that comes out over the mouth. There is 



I 



LABIUM fLJj---\ 



MAHDIBLC n f\ r 



LABRUM _M_ 1 



ANTENNA ''"•t-f* UciLl\ 



Compound Ere --.^--^ -jl. "'"" 



Second L^Q— --^^^^y^^^^j^mmom 

 Second ''*'"'"'■— 7^^^:?^^^o§^s~^^§\ 

 Thikd leq - 1 „ ^- r rj^^^^^* 



Fig. 5. 



a pair of queer little things that have an elbow near the 

 middle and a little club at the end. These must be the 

 antennae, and the little club is made of three leaves. 



With magnifying glasses we also see at least one pair 

 of palpi, and with a pin we assure ourselves that the 

 beetle has hard mandibles. 



From the card on which the month-parts are glned, and from 

 the blackboard drawing of Fig. 4, ihe 

 class observe that the beetle has the 

 same moath-parts as the grasshopper. 

 In Fis, 5 the nnited second maxillae 

 are indicated by their other name of 

 labinm or lower lip. 



On a male stag beetle (Fig. 6) 

 we now find the enormous 

 hooked mandibles, the long first 

 pair and short second pair of 

 palpi, the sort of tongue formed 

 of brushes of hairs attached to 



