NO. 2 



HONEY BEE SNODGRASS 



37 



supraneural bridge beneath the endosternal levators (4j), and inserted 

 by strong tendons on the lower margin of the foramen magnum. 

 Duncan (1939) describes the two branches of this muscle in Vespula 

 as first and second depressors of the head, but adds that the two 

 might be considered subdivisions of a single muscle. 



Fig. 13. — The prothoracic leg (drone). 



A, left half of propleuron, and left fore leg, lateral view. B, trochanter and 

 base of femur of left leg, posterior view. C, base of right leg and coxal muscles, 

 mesal view. D, base of right coxa with muscles, dorsal view. E, base of left 

 trochanter with trochanteral muscles, dorsal view. F, base of right femur, 

 anterodorsal view. G, left coxa with lateral muscles, lateral view. H, right 

 trochanter and base of femur with muscles, anterior view. 



c-d, axis of pleurocoxal articulation ; e, occipital process of episternum ; 

 /, anterior coxo-trochanteral articulation ; g, posterior coxo-trochanteral articu- 

 lation ; h, dorsal trochantero-femoral articulation ; j, base of depressor apodeme 

 of trochanter. 



