i6o 



egg of Smintheiis is like Lycaena, of Baldur like Chrysophanus ; the 

 young larva like some Nymphalidae (and perhaps Erycinidae); the 

 mature larva more like a Heterocerous moth (in all but the tentacles); 

 and the chrysalis like a Hesperian, or also perhaps some moths. How- 

 ever till more is known of the biology of the genus, it may be prema- 

 ture to speculate on a proper arrangement. 



5. Anthocharis Julia, Edw. 



6. PiERis OcciDENTALis, Reak. * 



7. COLIAS EURYTHEME, Bd. 



8. " Edwardsii, Behr. 



9. " Scudderii, Reak. 



10. AsTR^A, Edw. This species was described from a rubbed or 

 broken male brought in by the Hayden Expn:, from the Yellowstone 

 region, a dozen years ago, and till now I have seen but one or two 

 others, from same reginn. But Mr. Courtis took 4 good males. The 

 upper side in fresh examples orange ochraceous. The under side 

 shows that this species belongs to the Alexandra group, the discal 

 spot of secondaries being white (pearly) without a ring, but with slight 

 rosy edging; also there are no submarginal brown spots to either wing, 

 and no patch at outer, .angle of secondaries, — all which points are also 

 characteristic of Alexandra. 



11. CoLiAS Hagenii, new species. 



This form is very common in the Rocky Mountains from Colo- 

 rado to B. Am , and is between Philodice and Eurytheme. Mr. Mead 

 bi'ought it in 187 1, and agreed with me at the time that it could not be 

 Philodice; but till this year there has been no opportunity to get at the 

 preparatory stages, the only test where closely allied forms are in doubt. 

 Mr. H. W. Nash, of Pueblo, Col., early in the summer, sent me some 

 chrysalids of this species, and I noticed that the dorsum was marked 

 by two longitudinal yellow lines, which seemed to indicate similar lines 

 in the larva, and which are not present in the chrysalis of Philodice. I 

 wrote to Mr. Nash to observe as to that, and he soon replied that the 

 larvae he then had on hand did show sub-dorsal lines (such as are 

 characteristic of many larvae of C. Eurytheme?) Great numbers of 

 eggs were sent me again and again by Mr. Nash, during July and 

 August, but in crossing the heated plains they lost their vitality, and 

 soon after I received them, collapsed without hatching. Also, several 

 shipments of larvae were destroyed by same cause. But since middle 

 September eggs were sent which hatched en route, and I now have 

 about a dozen larvae just past the second moult. These will proba- 

 bly hybernate before reaching another moult. But Mr. Nash has 

 made observations on the ground at my request, and has sent me 

 larvae in alcohol, showing broad sub-dorsal bands, which, he states, 

 had, in life, red running through them. In the alcoholic specimens 

 the red has passed away, but the white bands are distinct as ever. 

 Other larvae were sent showing white lines only, and Mr. Nash says 



