THE SWALLOW-TAILS 



B. Front wings crossed by several bands of greenish white. 

 (/. a/ax), p. 49. The Zebra Swallow-tail. 



BB. Front wings not crossed by bands of greenish white. 



C. The larger part of the disk of the wings yellow. (P. 

 glaucus), p. 51. 



The Tiger Swallow-tail (Turnus Form). 



CC. The larger part of the disk of the wings black. 



D. Principal markings of the upper side of the front 

 wings nearly parallel with the costal margin ; 

 wings black above, yellow beneath. (P. thoas), 

 p. 56. The Giant Swallow-tail. 



DD. Principal markings of the front wings parallel 

 with the outer margin ; wings black above and 

 below. 



E. Hind wings crossed near the middle of the upper 

 surface with a band of yellow, or with a row of 

 yellow spots ; this in addition to a subterminal 

 row of spots, and a series of marginal lunules of 

 the same color. 



F. Yellow band near the middle of the hind 

 wings distinctly interrupted with black on the 

 veins. 



G. Tails of hind wings about four times as 

 long as broad. (P. polyxenes), p. 62. 



The Black Swallow-tail. 



GG. Tails of hind wings only about twice as 

 long as broad. {P. breiricauda), p. 61. 



The Short-tailed Papilio. 



47 



