NORTH AMERICAN BITTEKFLIES. 27 



44. ANTIIOCIIARIS ROSA Edw. 



Rose's Marbled Butterfly. 



Similar to A. oh'mpia, but differs in being smaller and in having 



the markings of lower surface of hind wings, even more restricted but 



at the same time, rather more decided. Fig. 12, e. Expands l.L'O to 



1.40. Habitat, ^Vestern Texas. 



4.1 ANTHOCHARIS AUSONIDES. Bd. 

 Large AViiite ^Iarbled Butterfly. 



Larger than A. olympia, but of the same form and general color- 

 ation, but differs in having the dark area of fore wings broken by three 

 white spots in the male, f jur in the female, and three divisions of mar- 

 blings on hind wing below, are mure connected, Fig. 14, c. The black 

 spot at end of central cell of fore wing, is repeated below. The hind 

 wings of female are tinged with yellowish. Expands l,oO to 1.90. 



Habitat, Colorado to California, and Arizona, British America, and 

 the Youcon River, Alaska. Occurs in March and April. 



45a. Anthociiaris ausonides coloradensis H. Edw. "Wings, 

 rather broader than in typical A. ausonides, and the markings above 

 are darker, while below the marblings are more e.xtended. 



4G. ANTHOCHARIS CETHURA Feld. 

 Califorxian Marbled Butterfly. 

 Size and form of A. genutia, but differs in having the orange spot 

 above, resting on the black bar on the end of the central cell, and the 

 black spijts on margin enlarged into diamond shaped marks. Fig. 14, d; 

 the base of both wings is dusky, and the marblings of hind wings below 

 are divided into three divisions, but these are not as distinct as in olym- 

 pia, nor are the markings as coarse. Expands 1.40 to 1.50. Habitat, 

 Southern California. Occurs in March, April, and May. 



47. A:NTH0CHARIS :\I0RRIS0NI Edw. 

 Morrison's Marbled Butterfly. 

 Size of A. cethura and of similar fjrm, but differs in having the 

 bar at end of central celL a little narrower and of the same width through- 

 out, and the orange patch at apex is bordered with confluent spots, form- 

 ing scallops. Beneath, the apical patch is rather deeper orange, and is 

 surmounted with pinkish. The marblings below are rather more de- 

 cided, leaving the interspaces clearer. Expands 1.50. Habitat, Kern 

 River, California. 



