LEPIDOPTERA. 387 



larger specimens expanding less than one inch and a half. 

 The wings are canary-yellow above, with the apex of the 

 fore wing and the outer margin of both fore and hind wings 

 blackish brown. The border of the hind wing is narrow and 

 sometimes wanting. 



The distribution of this species is similar to that of the 

 preceding. The larva feeds on Cassia. 



The Dainty Sulphur, Nathalis iole (Na-tha'lis i'o-le). — 

 This little butterfly can be distinguished from all others de- 

 scribed here by its small size, as it expands only from less 

 than one inch to one and one fifth inches. It is of a pale 

 canary-yellow color, with dark brown markings. There is a 

 large apical patch on the fore wings, and a broad band par- 

 allel with the inner margin ; on the hind wings there is a 

 stripe on the basal two thirds of the costa, and spots on the 

 ends of the veins ; these are more or less connected on the 

 margin of the wing, especially in the female. 



This species also is found from Southern New England 

 to Florida and west to Lower California. It, too, feeds on 

 Cassia. 



The Cloudless Sulphur, Callidryas eubitle (Cal-lid'ry-as 

 ■eu-bu'le). — This large butterfly differs greatly in appearance 

 from those described above. It expands two and one half 

 inches. The wings above are of uniform bright canary- 

 yellow. In the male they are without spots, except fre- 

 quently an inconspicuous brown dot at the tip of each vein, 

 and a lilac -brown edging of the costal border. In the 

 female there is a discal dot on the fore wing and a mar- 

 ginal row of brown spots at the ends of the veins. 



This is a southern species which occasionally extends as 

 far north on the coast as New York City, and in the Missis- 

 sippi Valley as far as Southern Wisconsin. The larva feeds 

 on Cassia. 



