1868.] 
15 
and edged witli pale roseate; discal spot as above; otherwise immacu¬ 
late. Secondaries wholly greenish-yellow, covered with black scales ; 
discal spot small, rounded, silver-white, without a border; otherwise 
immaculate; nor is there a pink tinge at base as in PMlodice and many 
species of* Colias ; edge of costa pale roseate to the end of the costal 
nervure only; fringe of both wings yellow. 
Palpi pale yellow; legs and antennse pale roseate; club blackish 
above, brownish-yellow below and at tip. 
Female. Expands 2^^^ inches. Upper side less brightly colored, 
having a greenish tinge throughout, and without a marginal bandi 
fringe yellow and otherwise as in the male. 
Yariety a. Female; expands 2yL inches. Primaries have the apex 
bluish-white, and an obsolete macular band, indicated only by clusters 
of scales along the margin and apex and by a line of scales anter¬ 
ior to these; on the under side of secondaries the hind and inner mar¬ 
gins have a bluish tint. 
From Pike’s Peak; in the Society’s collection; 6 males, 1 female. 
The second female is from the collection of Mr. Gleorge Newman and 
was taken among the llocky Mountains, some years ago, by Mr. Wood. 
Thecla Clothilde, nov. sp. 
Male. Expands inch. Upper side fuscous, sprinkled, next the 
base of primaries, with a few scales of deep metallic blue; on second¬ 
aries this color extends from the base through the disk to the hind 
margin. 
Under side uniform light greyish-brown, with a silky gloss; a trans¬ 
verse row of deep orange spots, each edged without by a few dark 
scales and a whitish border, commences on the costa of primaries, three- 
fourths the distance from the base, and terminates at the lowest branch 
of the median nervure; secondaries have a submarginal row of similar 
spots and a second irregular row crosses the disk; anal angle tinged 
with orange. 
Body fuscous above; blue-grey below; antennae dark with fine white 
rings; club dark with reddish-brown tip. 
Taken near Quebec, C.E., by Rev. Mr. Provancher. 
Hesperia Mystic, nov. sp. (Plate 1, fig. 3 & 4.) 
Male. Expands inch. Primaries fulvous, with a wide, brown 
