206 ARTHROPODA 



spermatheca, which serves to store the spermatozoa received 

 from the male until the eggs are laid. 



The reproductive organs may also be added to your figure 

 showing internal anatomy. 



Lang: Handbuch der Morphologie der wirbellosen Tiere. Bd. 4, 1921. 

 Brooks: Hand-book of Invertebrate Zoology. 



APIS MELLIFICA (Honey-bee) 



The life of this form is so different from that of the grass- 

 hopper that, should time permit, a study of its complete 

 anatomy would be profitable, but attention will here be con- 

 fined to a few of the more general adaptations that fit it for 



its life. 



Bees at work on flowers should be examined and the 

 methods of getting honey and pollen noticed. 



1. Catch by the wings a bee that has been gorging itself 

 and bend the abdomen forward with your thumbnail until 

 the bee disgorges. Notice where the fluid comes from and how 

 much there is of it. When the abdomen is released watch the 

 bee as it swallows the drop it has disgorged. 



2. Notice where the pollen is carried, and see if you can 

 determine how it is attached. Examine bees working on dif- 

 ferent flowers, or watch them as they enter their hives, and 

 see if the pollen is always of the same color. Do you under- 

 stand what the pollen is and what the bees use it for? 



3. You may find bees gathering pitch from buds, knots, 

 boards, or freshly varnished furniture, and fastening it on 

 their legs. Do you know what this is used for? 



4. Watch the entrance of a beehive and see if the bees 

 going in are ever challenged. Perhaps you may see the 

 method of defense. If so, you will notice that the stranger 

 simply tries to get away. You may also see how dead bees 

 and foreign materials are removed. 



5. It is desirable to see something of the activities in the 

 hive. This can be most satisfactorily done with a glass-walled 

 observatory hive, by means of which comb-building, honey- 



