THE HONEY-BEE. 



161 



the sting to be pulled out -when the bee tries to withdraw it. 

 In the act of stinging the awl first pierces, then the lancets. 



The ova that give rise to workers hatch in three days into 

 white footless grubs, which are fed by workers, and mature in 



---P,. 



—T.,. 



Pig. 70. — (i) Mouth and (ii) Sting of Bee, dissected. 



c, Clypeus ; Z, labruin ; e, epipharynx ; m, mandibles ; Ca, cardinales ; lo, lorre ; wx 



maxillge ; Sti, stipes ; lac, lacinia ; 7na:.p, maxillary palps ; men, mentum ; M, lingua ; 



Ip, labial palps ; P.ff, poison gland ; P.s, poison sac ; s, lancet ; A, base of stylets ; d, 



curved root of sting ; lig, angular piece ; L, end of lever. 



eight days. The food of the grubs that are to become workers 

 consists of a scanty supply of a white fluid composed of pollen 

 aud honey. The cell in which the grub lives is then capped 

 over with poUen and wax. The larva, when mature, spins itself 

 a cocoon of white silk of extreme thinness. Three days after 

 the insect has been capped in it pupates. In another week the 



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