Part of Posterior Leg of Worker, much magnified. 

 <— Tibia. Ti^Rlm ot liairs. p— Pollen basket. te— Joint of tarsi. 



fl— Claws. 



e— Rows o£ hairs. 



when clustering. The first two suggestions may be correct, 

 though other honey and pollen-gathering bees do not possess, 

 it. The latter function is performed by the claws at the end 

 of the tarsi. 



The worker bees possess an organ of defense, which they 



Anterior Leg of Worker, magnified. 



are quick to use if occasion demands. This organ is straight, 

 not curved as is the sting of the queen. The poison, which 

 is emitted in stinging and which causes the severe pain, is an 



