ARGYNNIS IV. 



beneath buff, with gray and t'ulvoiis hairs, abdomen buff; legs fulvous; palpi 

 fulvous, with l)ufl' hairs in front ; antennae fuscous above, fulvous below ; club 

 black, fulvous at tip. 



Female. — Expands from 2.3 to 2.7 inches. 



Upper side paler ; the marginal lines and crescents confluent, forming a broad 

 black band, the enclosed fulvous spots paler than the ground color ; the other 

 markinsjs as in the male. 



Under side of primaries deep red, ochraceous apically ; the silver spots distinct, 

 three on the ferruginous patch, and five or si.x along the margin ; secondaries as 

 in the male, but rather more mottled with greenish - ochraceous ; spots larger, 

 well silvered. 



This fine species was first made known l)y Dr. Bremner, of H. M. Ship 

 Zealous, who obtained a few individuals on San Juan Island, in 1S71, and pre- 

 sented them to Mr. Henry Edwards. In 1873, Mr. Edwards himself vi.sited Van- 

 couver's Island, and writes as follows : " Bremnerii i.s remarkably common in the 

 vieinitv of Victoria. I observed it in u;reat numbers at Esquimalt, and on a 

 patch of clover, which was in full fiower at tlie time of my arrival, I captured 

 over .sixty specimens. The gi'eat majority of these were males, and from my 

 own experience, and that of other observers, with the larger Ar(/i/uiiides, I be- 

 lieve that the females of Breiiuierll would not appear iu anv number before tlie 

 end of August, while the male is abundant in June. It seems to be the only 

 large species of Argyunis inhabiting this Island. Its flight is somewhat slow and 

 heavy, and being a fearless insect, its capture is a matter of no dilliculty." In 

 August, 1873, also, Mr. G. R. Crotch was collecting in British Columbia, and 

 found Bremnerii abundant at Eraser's River and at Lake Labache. With it was 

 flying A. Aplircxlite, scarcely diflering from its type of tlie Eastern States. This 

 alone of the large Atlantic species of Arr/i/twis is found on the Pacific coast, and 

 so far as now known, is confined to British Columlna. Both Atlantis and Ajih- 

 rodite belong to the Coloradan fauna, and the males of the latter species have 

 there undergone some modification, having assumed somewhat of tlie intense 

 coloration of the female, while the fore-wings are more produced and more 

 arched than in the Eastern type. 



