Mr. Edward Doubleday's Remarks on the Genus Argynnis. 485 



is a difference in the degree of curvature of the subcostal of the posterior 

 wings and in the American group, of which Arg. Tharos and Ismeria may be 

 considered the types; the disco-eel lulars of the anterior wings are almost atro- 

 phied. 



The geographical distribution of these groups is interesting. The first is 

 confined to the warmer parts of America ; the second, to the tropical parts of 

 Asia; the third, to tropical Africa; the fourth is tropical and subtropical in 

 both the old and new world ; the fifth is from tropical Asia ; the sixth occurs 

 in Mexico and the West Indies; the seventh has its station in the temperate 

 regions of the northern hemisphere, though three species occur in the warmer 

 parts of Asia; the eighth has its head-quarters in Europe and the temperate 

 regions of North America, but reappears in Chili and the Falkland Isles. 



The genus Melitcea has three divisions : one numerous in Europe ; the 

 second, of which M. Phaeton and Chalcedona, Boisd. are as yet the only spe- 

 cies known, confined to Northern America ; the third, numerous in species, 

 extending from Hudson's Bay to high latitudes of the southern hemisphere. 



EXPLANATION OF THE PLATE. 



Tab. XLII. 



Fig. 1. Agraulis VanUlce, Hiibn. 

 Fig. 2. Terinos, n. sp. 

 Fig. 3. Argynnis lole, Godart. 

 Fig. 4. Argynnis Hegesia, Godart. 

 Fig. 5. Argynnis Egesta, Godart. 

 Fig. 6. Clothilda pantherina. 

 Fig. 7- Argynnis Cybele, Godart. 

 Fig. 8. Argynnis Dia, Godart. 

 Fig. 9 a. Melitcea Cinxia, Ochs. 

 Fig. 9 b. Melitcea Phaeton, Boisd. 

 Fig. 9 c. Melit<ea lanthe. 



