472 Messrs. Elwes and Edwards on 
species (/.c.) is not characteristic, so far as regards the 
shape of the outer edge of the dark band on the hind 
wing below; in my specimens the two points at which 
the outer edge of this band is farthest from the base of 
the wing occur on vein 4 and in cell 6, the space between 
them being concave; in the figure, however, the outer 
edge of the band bulges outward in an almost even curve 
from vein 2 to vein 7. That this is a mere error of the 
artist seems clear from the representation of the hind 
wing above, because there the outer edge of the band 
(which in these insects always coincides with that on the 
lower surface) shows the projection on vein 4, and, in a 
less degree, that in cell 6. It is possible that the speci- 
men figured may have been an aberrant one, in which 
the outer edge of the band on both hind wings below 
was not symmetrical, but in any case there seems no 
reason to think that the figure is intended to represent 
a species different from that to which my specimens 
belong. 
(Z. uhleri.— I cannot add much to the excellent 
account of this species given by W. H. Edwards (I. c.). 
I took it in Colorado, in the first week in July, in the 
drier valleys, at about 9—10,000 ft. elevation ; it was 
flying at the same time on the foot-hills near Denver. 
I have also taken it in the Yellowstone Park, at 7000 ft., 
in June. The form varuna was originally described from 
Dakota and Montana, where it was taken by Morrison 
in 1881, and appears to be essentially an insect of the 
northern plains and prairies, and though it enters the 
foot-hills of the isolated mountain ranges of Montana 
and Dakota, neither Messrs. Wright, Morrison, or Bean 
have taken it in the mountains. In Alberta and Saskat- 
chawan, Mr. Bean has taken it abundantly between the 
1st and 8th June, as well as at McLean and Swift Current 
in Assiniboine ; and Mr. Wolley-Dod finds it at Calgary 
in the early summer. In the Rocky Mountains of 
Alberta it goes up to about 4000 ft. at Kananaskis, 
where the valley of the Bow River runs into the moun- 
tains; it has also been taken by Mr. Fletcher at Fort 
McLeod. 
In examining a large series it is impossible to separate 
the two forms, although, as a rule, the Colorado speci- 
mens are larger and paler than those from the north, 
and the prairie form varuna is smaller. The ocelli on the 
