506 
Lord Walsingham on 
to be near Psedisca cramhitanaj Wlsm., and it is an 
equally beautiful and remarkable form. We may hope 
that at some future time the number of known specimens 
(at present only three) may be increased. 
[Psedisca (?) norvichiana, Hb. 
Tortrix norvichiana, Hb. Samml. Eur. Schm., VII., PI. 
XL.j 252 (1814) ; Eugnosta norwichiana, Hb., 
Yerz. bek. Schm., 394, No. 3832 (1826); 
Argyroptera norvichiana, Gn. Ind. Meth., 65 
(1845) ; Eupecillia norwicJiiana, H.-S. Schm. Eur. 
IV., 179 (1849) j Argyroptera norvichiana, 
Hdnrch. Lp. Eur. Oat., Meth., 66, No. 158 (1851). 
Eah.? 
I should like to call attention to norvichiana, Hb., the 
species which precedes adamantana, Gn., in the Index 
Methodicus, in regard to which Herrich S chaffer 
remarks, vielleicht exotisch.^^ Nothing appears to be 
known about this insect, nor is it mentioned in 
Staudiuger and Wocke^s Catalogue. A study of the 
figure leaves a strong impression upon my mind that it 
is a Psedisca allied to adamantana, nor should I be 
surprised to receive both species from some sub-arctic 
region.] 
Psedisca smithiana, sp. n. 
Antennae white. Head, Palpi, and Thorax white. Forew'mgs 
shining white (in some specimens with a shght yellowish tinge), 
some faint smoky grey hnes and streaks in the $ are almost 
entirely obliterated in the ^ specimen ; these appear along the 
fold and around the margins of the cell, some also descending 
obliquely from the costal margin before the apex, whence also 
arise one or two silvery marks, extending downwards towards the 
ocelloid patch, which is margined before and behind with silvery 
white, preceded at its lower angle by a minute group of black 
scales, and contains two black dots ; cilia white, profusely and 
minutely speckled with black. Exp. al., 16 mm. Hindivings 
very pale whitish grey ; cilia white. Abdomen very pale greyish. 
Legs white. 
Type, 6 ? . Mus. Wlsm. 
Hah. Colorado— Loveland, 5,000 ft., July, 1891 
(Smith). 
Nearly allied to P. pergandeana, Fernald MS., but 
