Butterflies collected in Chili. 471 
primaries in the female slightly narrower, more sharply 
defined, and angular internally ; the secondaries with 
the discal and marginal series of black spots indicating 
the outer border barely visible, excepting close to the 
costa; secondaries of both sexes below usually rather 
more dusky, and with the plum-coloured dash at the 
base of the median vein more prominent than in 
C. rutilans; expanse of wings—male 1 inch 7 limes, 
female 1 inch 8 lines. 
3, 2, Chili. (See Notes at end of paper). 
A nearly-allied species to this, but considerably larger, 
was obtained by Dr. Cunningham at Sandy Point, in the 
Straits of Magellan, and may be called C. cunninghamit. 
46. Colias, cunninghami, n. 8. 
$. Slightly paler in colour than C. rutilans; the 
outer border of the primaries very broad at apex, and 
crossed by yellow veins close to the costa, abruptly 
narrowed from the third median branch to the external 
angle ; costal border bright yellow; fringe golden yellow, 
tipped with rose-red ; secondaries with the tips of the 
subcostal branches and the apical border black-brown ; 
the blackish interno-basal patch on the primaries, and 
the broad interno-median patch on the basal half of the 
secondaries, decidedly paler and greener than in C. 
rutilans ; apex of primaries and borders of secondaries 
below greener; form of primaries more acutely trian- 
cular; the female has the spots indicating the border 
of the primaries above smaller, and often partly obso- 
lete, and the under surface of these wings greener ; 
expanse of wings—male 2 inches, female 1 inch 11 lines. 
Three pairs. Sandy Point (Dr. Cunningham). 
The distinctly triangular form of the primaries, due 
partly to the straighter costal margin, readily marks out 
this as a good distinct species. 
TrRras, Swainson. 
47. Terias chilensis. 
Terias chilensis, Blanchard, in Gay’s ‘Fauna Chilena,’ 
vil., p. 17; pl. 1, figs. 5a, 5b (1852). 
‘“‘ Double-brooded ; November, February, March, and 
April; larva in December on Cassia.” 
