M 38 British CotuMBta. 


and below. ‘Thorax mostly whitish in front and behind, brownish ochreous across tips of patagia. 
Expanse, 20-26 mm. 
A yery rare species. There is only one record from British Columbia—a single specimen 
taken by Mr. G. O. Day in June. The type came from Northern Oregon, where they were reared 
from a species of Orthocarpus. Writing of orthocarpi, Barnes and Lindsey state that “ Together 
with fragilis, shastw, and albida, they make up an extremely difficult group whieh we are 
inclined to believe in-a state of evolution. The named forms can be recognized, but whether 
to regard them as forms and races of one species or as distinct species is a question which 
we are unable to decide.” 
S. PLATYPTILIA FRAGILIS Walsingham, Pter. Cal., Ore., 16, 1880. In this species the 
characters are much the same as in the preceding, except that the general colour is more or less 
buff or light brown. Expanse, 20-24 mm. 
In the Bryant collection several specimens stood under the naine of fragilis, hut upon exami- 
nation they all proved to be albiciliata Wals., with the exception of one specimen, which 
Dr. Lindsey agrees is fragilis. ‘The specimen is a little undersized, barely measuring 18 mun. 
It lacks antennuze and abdomen, but is otherwise in good condition. It was taken by Mr. Bryant 
at Wellington on July 13th, 1903. The species occurs in Washington, California, Arizona, and 
Colorado. 
9. PLATYPTILIA ALBICILIATA Walsingham, Pter. Cal., Ore., 17, 1880. Fore wings even dull 
brown, dark triangle faintly indicated. Fringes greyish with pale bases which bear a row of 
dark scales on the outer margin. Secondaries are concolorous, their fringes with pale bases, 
sometimes conspicuous, and a few scattered brown scales along the inner margin of the third 
lobe. Expanse, 21 mm. ‘Thorax somewhat lighter behind. Palpi are moderate, oblique, and the 
frontal tuft very short and blunt. 
British Columbia examples differ from the above abbreviated description, in having the dark 
triangle well marked and the outer pale line discernible on the first lobe in most specimens. 
There is also some irroration of bluish-white scales on the disk and along the costal edge; in 
some specimens thiS irroration is extended to the terminal area of both lobes of the primaries. 
The species has been taken at Wellington (Bryant); Mount McLean (Day); and at Barker- 
ville (Buckell). The single specimen taken by Mr. Buckell is a darker brown than the other 
British Columbia specimens and of a more even colour. The species was described from North 
California. There is a specimen from Montana in the Barnes collection which is doubtfully 
referred to this species. The early stages are unknown. 
10, PLATYPTILIA ALBICANS Fish, Can. Ent., XIII., 71, 1881. Primaries creamy white with 
white-irrorate brown areas, fhe colours about equally extensive. Both lobes with a terminal 
brown band and one just before middle which fades out toward inner margin. Costa brown 
as far as base of cleft and inward to a transverse dash before cleft. Fringes white with grey 
tips; brown and white scales in bases along outer margin. Secondaries grey-brown with a 
faint tuft of slender scales, not visible without lens, near middle of inner margin of third lobe. 
Expanse 17-24 mm. Frontal tuft lacking. Palpi small and slender, but projecting well beyond 
front; brownish on sides. 
The only records for British Columbia are specimens taken by Mr. G. O. Day. One taken 
at Hope Mountains in July, 1808, and another one taken on Stokers Mountain, near Cowichan 
Lake, on July 23rd, 1909. Writing on the species, Barnes and Lindsey remark “that the Stoker 
Mountain specimen is anomalous.. We place it here with little hesitation, though it is so much 
darker than the typical form that a casual examination discloses little resemblance. It corre- 
sponds in essential features with our series, but differs in having the brown areas darker and 
more extended, the pale areas consequently narrow and somewhat tinged with brown.” 
The species was described from Neyada and has been taken at Wyoming and Colorado. 
The early stages are unknown. 
11. PLATYPTILIA PALLIDACTYLA JIlaworth, Lep. Brit., 478, 1812. Primaries with nebulous 
bright-brown and whitish markings. Cleft preceded by two brown dots. Pale areas a blotch in 
cell, preceded by a brown dot, one near inner margin about one-third from base, and a broader 
area below base of cleft. Lobes paler brown, crossed by a pale line outwardly and with a pale area 
on costa above base of cleft, before which costa is narrowly dark brown, dotted with white. 
All brown areas slightly irrorate with white. Secondaries brown. Fringes of inner margin ef 
third lobe with pale bases and usually with 2 faint cluster of slender dark scales just beyond 

