NO. 2 



HONEY BEE SNODGRASS 



69 



The coxae and their muscles. — The movements of an insect's leg as 

 a whole depend on the nature of the coxal articulation with the body. 

 In the bee the coxae of all the legs swing forward and backward on 



Fig. 23. — The metathoracic leg, external structure. 



A, right hind leg of worker, posterior (inner) surface. B, opposing ends 

 of tibia and basitarsus of right hind leg of worker, posterior view. C, anterior 

 (outer) face of hind tibia of worker. D, pollen press of worker between tibia 

 and basitarsus, dorsal view. E, same, better shown by removal of tibial hairs. 

 F, right hind leg of drone, posterior (inner) surface. G, right hind tarsus 

 and pretarsus of drone, posterior view. H, right hind tibia, tarsus, and 

 pretarsus of queen, posterior surface. 



transverse axes, and the muscles of each coxa are inserted anterior 

 and posterior to the coxal axis of movement. The coxal muscles, 

 therefore, are pramotors and remotors. Morison (1927) designates 



