Canadian Butterflies. 317 



spot of tlie fore wings has the centre rather pupilled with silver 

 The female is much paler than the female cf Eclusa, and the yellow 

 orange colour only occupies the disk of the fore-wings, the yellow 

 spots which divide the dark margin are larger, more marked, and 

 of a much paler yellow colour. 



In Europe this pretty Colias is always smaller than Edusa^ it 

 is the contrary in North America, where it is rather larger than 

 the latter. Boisduval says that this genus is divisable into two 

 groups, C. Edusa belonging to the first, in which the males are 

 provided with a glandular space or sac at the anterior edge of the 

 hind wings near the base, whilst in the second group, to which C. 

 Chrysotheme belongs, they are destitute of this sac. This species 

 is found in Hungary, Styria, and Southern Russia, According to 

 Boisduval it is more mimerous about New York than Edusa ; it 

 appears in spring and in autumn, the second brood being most 

 numerous. We have never met with a description of the larva 

 or pupa. 



Species 3. — Colias Philodice. The clouded sulphur. 



Plate iv. fig. 2. — a, female ; 5, male ; c, male underside. 



Colias Philodice, Godart, Enoyclop. method. Ins., t. ix, pars 1, p. 

 100, n. 35. Paris, 1819-1821. 



Colias Philodice, Boisduval and Leconte, Ico , &c., des Lepidop- 

 teres, &c., de I'Amer. Sept., t. 1, p. 64, pi. xxi, fig. 1, 2, 3. Paris 

 1833. 



Colias Philodice, Emmon's Agri., N. Y. Insects, p. 204, pi. xxxv, 

 fig. 1, 2, 4, 9. Albany, 1854. 



Papilio Anthyale, Hubuer, Pap. erot., &c. Augsburg, 1806, &c. 



Male, the upper side of the wings sulphur yellow, with a rather 

 broad black border, sinuated internally and drawn to a point on 

 the posterior wings, a little before the anal angle. The anterior 

 wings have besides this an oblong black discoidal spot, and the 

 posterior a pale orange spot about the centre of the wing. Under 

 side, anterior wings fine yellow, very pale on the inner margin, and 

 powdered with blackscales on the costa. The black discoidal sub- 

 marginal spot has a white pupil, and there is a row of indistinct 

 black spots parallel to the hind margin ; posterior wings of a 

 deeper tint than the anterior, with two coalescing, central ocelli 

 having a ferruginous iris and silvery pupil ; they have also a 

 curved row of ferruginous spots parallel to the hind margin, 

 a ferruginous spot at the basal angle, and another in the 

 middle of the costal edge ; all the wings strongly fringed with 



