Genus Colias. 135 



Group 2nd, having the border of the forewing spotted in 

 the female sex only. 



Edusa, Fabr. 



ab. Helice, ? 

 var. Selene, Bisch. 

 var. Heldreichi, Std. 

 var, Feildii, Men. 

 var. Aurorina, H. S. 



Blyrmidone, Esp. 



var. Eos, H. S. 

 var. Lihanotica, Led. 

 ab. Thisoa, Men. 

 var. Auro7'a, Esp. 



Erate, Esp. 



ab. Pallida, Std. 



Clirysotheme, Esp. 



var. Hecla, Lef. 

 var. Boothii, Curt, 

 var. Chione, Curt. 



Group 3rd, having the border of the forewing unspotted 

 in both sexes. 



Paloeno. 



var. Philomene, H. 

 var. Europomene, Ochs. 

 var. Pelidne, Boisd. 

 var. Werdandi, Zett. 



He relies on the colour and form of the border, and on 

 the discoidal spots of the hind wing for the characters by 

 which the species are separated ; but I cannot follow out 

 his arrangement of the species in the specimens before me, 

 and by no means agree with his conclusions ; which are 

 quite regardless of the distribution of the Supposed species 

 and varieties. His division into groups, however, seems 

 quite natural, and is nearly identical with what I have 

 adopted. Dr. Staudinger's arrangement of the genus in the 

 last edition of his catalogue, 1871, is by far the best and 

 most accurate I know of, though based on a narrower idea 

 of specific distinctions than I can quite agree with. As, 

 however, uncommon care has been taken in consulting all 

 plates and descriptions, and the collection on which his 



TRANS. ENT. SOC. 1880. PART III. (oCT.) L 



