344 Lieut. -Col. Swinhoe's list of Lepidoptera 



and as regards C. edusa, from 1879 up to the present 

 neither Howland Eoberts nor Lang succeeded in getting 

 it. My collectors hunted every day for ten months, and 

 out of the many collections I have received from Quetta 

 since I left Afghanistan, I have not obtained a single 

 example of C. edusa. 



37. Colias erate. 



PapUio erate, Esper., Eur. Schmett., i. (2), pi. 119, 

 f. 3 (1806). 



Quetta, August to October ; Kandahar, August to 

 October. Very common. 



All the females obtained by me are yellow, but many 

 of them have regular leprous patches of white on the 

 wings below. 



38. Colias pallida. 



Colias pallida, Stand., Cat. Lep. Eur., p. 3, n. 64 



(1861). 



Quetta, September ; Chaman, April ; Kandahar, 

 October to Aj^riL 



Some of the females are yellow and some white ; it 

 is very probably only a variety of the above, but can 

 easily be distinguished, because all the males are more 

 or less streaked with yellow in the black border of the 

 fore wings, and the basal and central area of the hind 

 wings below in all fresh specimens, yellow and white of 

 both sexes, is dark greenish, leaving a broad marginal 

 band of the lighter colour. 



39. Colias sareptensis. 

 Colias sarepitensis, Stand., Cat. Lep. Eur., p. 5, n. 64 



(1871). 



Quetta, May and September ; Kandahar, February to 

 October. Very common. 



All the females obtained by me are white. Capt. 

 Elwes, in his paper in Trans. Ent. Soc. Lond., 1884, 

 part I., April, states his belief that the three last-named 

 species, as well as C. nila<jiriensis of Felder, are merely 

 varieties of C. hyale. This is very probably true, 

 insomuch that they very likely had some such common 

 ancestor ; but it is an indisputable fact that they are all 



