COLIAS VIII. 



secondaries mucli irrorated with black, giving tlie whole wing a dull orange-grey 

 shade; within the marginal borders a complete series of small yellow sjiots, not 

 wholly enclosed on secondaries; discal spot of primaries an orange streak in small 

 black oval ; on the under side the green is of a bluish, often greyish tint. 



Taken in Colorado by Mr. T. L. Mead, in the month of July, 1871. Mr. 

 Mead wrote from Twin Lakes, on 12th July, "On 8th, we left Fairplay in 

 an open hack which carries the weekly mail for this section. The driver was a 

 Yankee boy who obligingly delayed altogether more than an hour for me to catch 

 specimens on the "divide." This is the water-shed between the Platte and 

 Arkansas valleys. Probably the pass is very nearly 12,000 feet above the sea. 

 Above 11,000 feet an elegant species of CoUas makes its appearance. It is fiery 

 orange and the female also is very bright. I secured 12 specimens." From Fair- 

 j^lay, 24th July, " Last Saturday we rode out to Mt. Lincoln and made the 

 ascent. I took 34 specimens of the fiery Colias." He also took a single specimen 

 at Kenosha House, a few days later. The species frequents the highest peaks 

 and ranges, and none were obtained at a lower level than 10,000 feet above the 

 sea. 



This Colias bears close resemblance to Hecla, but may be readily distin- 

 guished by the glandular spot before spoken of (see Plate), a character not found in 

 IIecla,an(i so decisive that it is not necessary to point out minor points of difierence. 



