LEPIDOPTEEA LYCAENIDAE LYCAENA HETEKONEA. 781 



on the stem. Several changed to chrysalis, which is pale-greenish, finely 

 mottled with dark-brown, but all died before completing their transforma- 

 tions. The larvae are full grown by the last of June. 



CHEYSOPHANUS CASTEO, Eeakirt. 

 Polyommatus Castro, EEAKIRT, Proc. Ent. Soc. Phila., 1867. 



Whether this species is Helloides or not is difficult to determine ; the 

 only notable discrepancy in the descriptions is that Castro is said to have a 

 "long discal bar" on secondaries, while in Helloides this is no longer than 

 the discal spot of primaries. Dr. Boisduval, however, gives a description of 

 C. Nivalis, which has been considered a synonym of Castro, -and says that 

 although allied to Helloides, it is "very distinct". 



t CHEYSOPHANUS IANTHE, Edw. 

 Chrysophanvs lanthe, EDW., Traus. Ani. Ent. Soc., 1871. 



Specimens were brought by the expedition from Southern Utah; the 

 original types were from Virginia City, Nev. ; and these two are the only 

 localities from which the species is recorded. 



CHEYSOPHANUS SIEIUS, Edw. 

 Chrysophanns 8irius, EDW., Trans. Am. Ent. Soc., 1871. 



This species was first discovered at Twin Lakes, July 12. On the 13th, 

 forty males and two females were taken at a grassy spot near the head of 

 the upper lake, in company with Lyccsna Heteronea, the females of which 

 closely resemble some varieties of C. Sirius 9 both above and below. C. 

 Sirius was also taken near Mount Lincoln, and at various points in the 

 South and Middle Parks, but was quite rare except in the immediate vicinity 



of Twin Lakes. 



LYCjENA, (Fabr.) Oken. 



LYC^BNA HETEEONEA, Boisd. 

 Lycccna Heteronea, MORRIS, Syn. Am. Lep., 89. 



The expedition brought specimens of L. Heteronea from Southern Utah. 

 In Colorado, the first individuals were seen June 23 on Turkey Creek; but 

 it was much more abundant at Twin Lakes early in July. Altogether fifty- 

 nine specimens were taken. It occurs also in California. 



