74 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO3 



k 4 



Fig. 24. — The metathoracic leg, muscles and joints (drone). 



A, endosternum and ventral wall of posterior part of pterothorax, showing muscles of meta- 

 thoracic coxae, dorsal view. 13, base of right hind coxa and muscle insertions, dorsal view. 

 C, right trochanter and base of femur, with trochanteral and femoral muscles, anterior (outer) 

 view. D, proximal view of right trochanter and muscle insertions. E, depressor muscles of 

 trochanter. F, base of right femur, anterior view. G, femoro-tibial joint of right hind leg, 

 ventral view. H, right hind femur with muscles, anterior view. I, distal end of right tibia. 

 J, pro.ximal end of right basitarsus. K, right hind tibia and muscles, posterior view. L, tibio- 

 tarsal joint of right hind leg, dorsal view. 



d-c, pleurosternal axis of coxa; /, y. anterior and posterior coxal articular processes of 

 trochanter; h, i, dorsal and ventral trochantero- femoral articulations; j^ k, anterior and 

 posterior femoro-tibial articulations; m, tibial articular process of tibio-tarsal joint; n, tarsal 

 articular process of tibio-tarsal joint; o, ligament of femoral chordotonal organ. 



