Bees. Wasps. 



133 



wings, with few veins, and a mouth with strong man- 

 dibles but with suctorial labium and maxillae. The 

 abdomen is often joined to the thorax by a narrow 

 foot-stalk, and the abdominal limbs are modified into 

 a sting, the representative of the ovipositor, which coa- 



FIG. 77- 



b 



i. Mouth of the Bee. d, clypeus ; e, labrum ; f t mandible ; g, maxilla, 

 h, maxillary palp ; i, epipharynx ; k, labial palp; *, lingua; **, para- 

 glossae ; b.i is over the ocelli ; A, antennae ; c, eye. 2. Tongue, more 

 highly magnified. 



sists of two poison glands opening into a common 

 vesicle whose duct is elongated into a tube provided 



r ith a piercer barbed at the point. 



In bees the wings are not folded, and the basal 

 joint of the hindermost tarsus is flattened and often 



iristle-clad to collect the pollen for the food of larvae ; 



