NO. 2 HONEY BEE SNODGRASS III 



//p. Lateral intersegmental ventral muscle of the nictathorax ; 

 ventral lateromotor of the abdomen (fig. 27 E). — A smaller muscle 

 arising on median ridge of metasternum (in drone), inserted by long 

 tendon laterally on sternum of petiole segment (IIS). 



120. Outer dorsal muscle of the propodeum; median levator of the 

 abdomen (fig. 27 B). — A large muscle with spreading fibers arising 

 on lateral wall of propodeum, inserted by strong tendon on median 

 ridge of pocket on dorsal side of petiole (D, F, G). {Petiole muscle 

 Betts; musculus propodei retractor dorsalis postabdominis Morison.) 



121. Inner dorsal muscle of the propodeum; dorsal lateromotor of 

 the abdomen (fig. 27 B). — A two-branched muscle arising laterally 

 on propodeum at base of 120, inserted by long thick tendon on lateral 

 angle of tergal plate of petiole (G). 



122. Occlusor of the propodeal spiracle (fig. 27 B). — A short 

 intraspiracular muscle. 



12 J. Dilator of the propodeal spiracle (fig. 27 B). — A long slender 

 muscle arising from small process on dorsal margin of hind coxal 

 cavity. 



124. Median internal dorsal muscle of abdominal segment II (fig. 

 28 A). 



12^. Lateral internal dorsal muscle of abdominal segment II (fig. 

 28 A). 



126. External dorsal muscle of abdominal segment II (fig. 28 A). — 

 Runs transversely in fold between tergum // and tergum ///. 



12/. Occlusor of the spiracle of abdominal segment II. — A short 

 intraspiracular muscle. 



128. Dilator of the spiracle of abdominal segment II (fig. 28 A). — 

 A long slender muscle arising ventrally on lateral margin of sternum 

 //. 



I2g. Lateral muscle of abdominal segment II (fig. 28 A). — The 

 only tergosternal muscle of segment II, being attached on dorsal 

 surface of sternum it is probably the third lateral of other segments. 



/JO. Median internal ventral muscle of abdominal segment II (fig. 



28 A). — The only internal ventral muscle in segment II of the female. 

 i^i. Lateral internal ventral muscle of abdominal segment II (fig. 



29 B ) . — Present in the male only. 



1^2. Exteriial ventral muscle of abdominal segment II (fig. 28 A). 

 — Runs transversely from posterior part of sternum // to anterior 

 apodeme of sternum ///. 



The muscles of the next four abdominal segments are repeated 

 alike in each of these segments, and are present in both the male and 

 the female; they are numbered in the female (fig. 28 A), and may 



