14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO7 



downward and backward to its insertion on the lateral portion 

 of the basisternum. 



122. First episternal muscle of the trochantin (figs. 29, 30, 31). — 

 From its origin on the anterior edge of the episternum goes 

 ventrally to insert on the surface of the first plate of trochantin 

 (figs. 33, 34, iTn), just before the insertion of 118. 



I2J. Second episternal muscle of the trochantin (figs. 29, 30, 31, 32). 

 — Origin on the anterior edge of the episternum ; goes ven- 

 trally to a broad insertion along the anterior edge of the first 

 plate of the trochantin. 



124. Third episternal muscle of the trochantin (fig. 32). — From its 

 origin, near the anterior edge of the episternum, goes ventrally 

 to a broad insertion on the anterior edge of the first plate of 

 the trochantin. 



12^. Phragtnal muscle of the sternal arm (fig. 54) . — Origin on lateral 

 part of the second phragma ; goes inward and downward to the 

 upper surface of basal part of sternal arm. 



126. Sternal promotor of the coxa (figs. 28, 29, 30). — Origin on 

 lateral part of anterior edge of episternum ; goes ventrally to 

 anterior edge of coxa, between the coxal articulations with the 

 epimeron and trochantin. 



I2y. Sterno- pleural promotor of the coxa (figs. 29, 31, 32). — Origin 

 on surface of episternum and under surface of pleural ridge; 

 goes tapering posteriorly to small plate near coxo-pleural articu- 

 lation. 



128. Suhalar muscle of the fore wing (figs. 22 to 27). — Powerful 

 muscle, originates on the meron of the mid-coxa, goes forward 

 and upward to insert on the subalar plate (Sa). Corresponds 

 to the depressor-extensor of the fore wing in other insects. 



I2p. First tergal remotor of the coxa (figs. 22, 23, 24). — Origin on 

 the tergum ; goes dorsally to the posterior (dorsal) portion of 

 the coxal rim. 



/JO. Second tergal remotor of the coxa (figs. 22, 23, 24). — Power- 

 ful muscle, lies partially underneath i2q. Originates on the 

 anterior part of the tergum, goes dorsally to the posterior (dor- 

 sal) portion of the coxal rim. 



i^i. Third tergal remotor of the coxa (figs. 22, 23, 24). — Powerful 

 muscle, originates on anterior median part of the tergum, goes 

 dorsally to the posterior (dorsal) portion of the coxal rim. 



IJ2. Sternal remotor of the coxa (fig. 25). — Broad, flat muscle, 

 going from the posterior edge of the sternal arm to the posterior 

 (dorsal) portion of the coxal rim. 



