NO. 2 



HONEY BEE SNODGRASS 



Lm Md 



13 



Fig. 3. — The mandibles, maxillae, and labium. 



A, maxillae and labium of worker with parts artificially spread out behind 

 the mandibles, suspended by maxillary cardines from margins of proboscis 

 fossa {PF) on back of head. B, mandibles and free parts of maxillae and 

 labium folded beneath head. C, distal parts of maxillae and labium assembled 

 to form a proboscis, anterior view. D, lateral view of retracted and folded 

 labium and left maxilla. E, left mandible of worker and adjoining parts of 

 head, lateral view. F, right mandible of worker and mandibular gland, mesal 

 view. G, right mandible of drone, mesal view. H, adductor muscle of right 

 mandible of worker, arising behind compound eye. I, abductor of right mandible 

 of worker. J, right mandible of queen, mesal view. 



a' , posterior articulation of mandible ; a" , cranial articulation of maxillary 

 cardo ; c, anterior articulation of mandible ; d. mesal depression of mandible : 

 e, mesal groove of mandible; /, orifice of mandibular gland. 



