THE DRAGON FLY 37 



7. Does the dragon fly have a sting? 



8. The life history. The eggs are laid in the wate& *\^ 

 They hatch into a nymph, a form resembling the adult 

 without wings. In this stage they live in the water, 

 and feed greedily upon small water insects. At this 



stage they are bene- 

 ficial in eating mos- 

 quito larva. When 

 the nymph is fully 

 grown it crawls out 

 of the water upon 

 some convenient rock 

 or reed, fastens its 

 feet firmly, splits 

 down the back, and 

 the adult dragon fly crawls out, dries itself, and is soon 

 ready to fly. The dragon fly is a beneficial insect, be- 

 cause it preys upon other insects that are pests to us. 



LESSON X 



FIG. 13. THE DRAGON-FLY 



6. THE BEE 



1. Answer the following questions on the honey, or 

 bumble bee, based upon field observation : 



(a) "What kind of flowers does it feed upon? 



Is it shy while feeding? Will it sting then? V 



Does it stay long at each flower? 



What does it gather from the flower? 



Explain how it helps the flower. 



How does its manner of flight compare with 





(b) 

 (c) 

 (d) 

 (e) 

 (f) 



that of the butterfly? 



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