COLIAS IV. 
COLIAS KEEWAYDIN, n. sp. 1—9. 
Male. Expands from 1.6 to 1.8 inches. 
Upper side sulphur yellow, the disk of both wings more or less tinted with 
orange, which occasionally has an opaline reflection ; on primaries the orange is 
deepest next base and on inner margin, towards hind margin insensibly passing 
into yellow ; on secondaries the tint is less deep, extends quite up to the marginal 
border but fades into yellow towards costal and abdominal margin ; base thickly 
powdered with black which extends a little way along inner margin of primaries, 
and, on secondaries, covers part of the cell and median interspaces ; discal spot of 
primaries black, sub-ovate, often much compressed, but sometimes almost circular ; 
marginal border black, of median width, crossed at apex and often throughout by 
yellow nervules ; regular on its inner edge, with a slight projection on sub-medi- 
an and an indentation below that nervure, not quite parallel to the margin in its 
general course, but approaching it somewhat near the disco-central ; beyond this, 
curving roundly towards costa and terminating (usually quite abruptly) on costal 
edge at about one-fourth distance from apex to base; on inner margin projecting a 
short, attenuated spur. 
Secondaries have the discal spot deep orange, occasionally with a small atten- 
dant spot on its anterior edge ; the marginal border narrowed, usually regular, but 
sometimes a little excavated between the nervules, commencing above the upper 
branch of sub-costal and ending acutely at or a little beyond the first branch of 
median ; fringes yellow, edged slightly without by roseate, more decidedly at apex 
of primaries. 
Under side uniform deep yellow ; costal edges and fringes roseate ; costal mar- 
gin of primaries and the whole of secondaries much sprinkled with fine black 
scales ; discal spot of primaries sub-ovate, sometimes triangular, black, with a dot 
or streak of yellow, or sometimes white, in the centre ; the sub-marginal row of brown 
spots faint, consisting of but a few scales and partly obsolete ; secondaries have a 
similar row of spots, a small elongated patch on costa and a roseate spot at inser- 
tion of median ; discal spot large, margaritaceous, in a narrow brown ring about 
which is a paler halo ; the attendant spot, if any, a dot in the centre of a 
similar ring. 
Body covered with yellow-grey hairs which are tipped with faint roseate on 
the collar ; abdomen black partly covered with yellow scales, beneath yellow ; tho- 
