NO. 2 



HONEY BEE — SNODGRASS 



53 



Jr s 



Ba WP 



Fig. 19. — Details of the mesothoracic wing base, its articulations, and pleural 

 muscles (drone). 



A, tegula (Tg), and wing base in natural position of extended wing. B, upper part of 

 mesopleuron, showing pleural articulation of basalare and second axillary. C, humeral area 

 of wing base, ventral view. D, base of right wing with axillary region flattened, dorsal view. 

 E, axillaries and axillary lever of right wing. F, left margin of mesonotum in region of wing 

 attachment. G, right basalare and its muscle, mesal view. H, right third axillary and its 

 muscles, mesal view. I, right subalare and its muscle, with supporting sclerite (,h) on edge 

 of epimeron, mesal view. J, left lateral part of mesonotum, with first axillary in natural 

 position. 



o. articular surface of first axillary with humeral complex of wing base; 6, head of first 

 axillary: c, notal hinge-lobe of first axillary; d. lobe of mesopleuron supporting basalare; e, 

 recurrent suture of mesopleuron; /, lateral process of first axillary; g, posterior end of first 

 axillary; h, supporting plate of subalare; i, exposed dorsal surface of second axillary; /, 

 pleural articular process of second axillary; k, posterior ventral process of second axillary; 

 /, muscle lobe of third axillary; m, median plate of wing base; 11, distal lobe of median plate; 

 o, articular process of axillary lever; p, anterior lobe of anterior notal wing process supporting 

 neck of first axillary; q, posterior lobe of anterior notal wing process articulating with hinge- 

 lobe of first axillary (c) ; r, posterior notal wing process; s, exposed head of axillary lever; 

 t, point at which mesoscutum is supported on anterior angle of pleuron. 



