470 Mr. Nac Butler’s List of 
Coutas, Fabricius. 
44. Colias vauthierit. 
? , Colias vauthieri, Guérin, Voy. de la Coquille, pl. 15, 
fig. 2 (1829). 
3, 2, Chili; everywhere. (See Notes at end of paper). 
The male, like the female, is rather larger than that 
sex of the closely allied C. rutilans ; the orange colouring 
is slightly redder, and the outer border more regularly 
arched inwards towards the costal margin; the median 
veins are partly blackish on all the wings; the orange 
area on the primaries below is less diffused; the apex 
and borders of these wings, and the ground colour of the 
secondaries, are of a bright chrome-yellow, and the 
ocelloid spot on the secondaries is smaller and less elon- 
gated ; expanse of wings, 2 inches. 
The average size of the male C. rutilans is about 
1 inch 9 lines; the female is of about the same size, and 
differs from that of C. vauthiert in the whiter colour of 
the secondaries above and the more dusky colour of 
these wings below. I think, therefore, we have here at 
least a distinct race, although the general resemblance 
of the two forms is so great that, were they not both 
already provided with distinctive names, it would be 
necessary to obtain stronger evidence than we at present 
possess before running the risk of giving a new specific 
title to the second form. 
44a. Colras rutilans. 
3, Colias rutilans, Boisduval, Sp. Gen. Lep., p. 642, 
n.9; pl. 19, fig. 8 (1886). 
oe wnat. 
The insect figured as the male by Reed (Marip. Chil., 
lam. 1, fig. 3 (1836) ) is referable to the following, of 
which, however, it is but a poor and unsatisfactory repre- 
sentation. 
45. Colias minuscula, n.s. (Pl. XXI., fig. 11). 
Smaller than C. rutilans ; of the same colours above ; 
the outer blackish border of the primaries in the male 
wide at apex, but abruptly narrow from the third median 
branch to the external angle; the outer border of the 
secondaries also very narrow; the outer border of the 
