North-American Sphinges and Bombyces. 315 
Five male examples, Shasta and Siskiyou Counties ; 
Mount Shasta. 
This is a most singular-looking species, which, but for the 
fact that its neuration locates it among the Lithoside, I 
should have been almost inclined to place among the Psychide. 
Nowa, Leach. 
23. Nola minna, sp. n. 
Primaries above silvery grey; a black-brown dash at the 
base of the costal margin, a black spot at basal third, a larger 
rhomboidal jet-black spot (immediately below the second 
costal spot) within the cell, and an oblique series of four 
blackish dots between the latter and the inner margin; a 
black dot at the end of the ceil, a slightly sinuous series 
crossing the wing obliquely just beyond the cell, and a slightly 
zigzag disco-submarginal series of blackish spots; costal 
margin from before the middle to the apex spotted with 
blackish ; fringe sordid white, traversed by two series of 
oblong grey spots: secondaries sericeous white, the costal 
border and fringe slightly sordid: body white, the abdomen 
sordid and greyish towards the centre; palpi long, porrect, 
white above, with the sides grey ; antenne greyish. Primaries 
below grey, with grey-speckled white borders; fringe as 
above: secondaries white, the costal area slightly irrorated 
with grey scales; a small grey discocellular spot: bod 
below greyish brown; tarsi and venter banded with white. 
Expanse of wings 24 millim. 
Three specimens. Mendocino County, California. 
Of the Kuropean species this most nearly resembles N. cen- 
tonalis; its antennee, however, are longer and more slender. 
By the description I should judge it to be allied to N. sexmacu- 
lata of Grote. 
Liparide. 
Oreyia, Ochs. 
24. Orgyia nora. 
Orgyia nora, Fitch, Highth Report on Noxious Insects of New York, 
p. 675 (1864). 
One male. Siskiyou County, California. 
IT am rather sceptical about the distinctness of this species 
from O. antiqua ; it 1s certainly darker (or rather duller) than 
the majority of specimens of the Huropean species; but the 
latter is frequently much darker than the example now before 
