new species of North American Tortricidce. oil 
being at its palest immediately around the outer margins of these 
markings ; a few darker almost fuscous scales are sprinkled about 
the costal fold and apical streak and along the base of the cilia, 
which are fawn-brown tipped and sprinkled with white. Exp. al.^ 
26 mm. Hindwings pale fawn-brown ; cilia somewhat lighter, with 
a slight dividing shade near their base and some faint whitish 
speckling. On the underside the hindwings are more decidedly 
lighter than the forewings. Ahdomen and Hhidlegs pale fawn. 
Type. ^. Mus. Wlsm. 
Hah. Arizona (Morrison). 
This species differs from Psedisca dorsisignatana, Clem., 
in its wider forewings, in the more outward position of 
the dorsal blotch and in the obliquely margined basal 
patch, although in general appearance it somewhat recalls 
a large specimen of that species. 
I should like to add here that I cannot agree with 
Dr. Fernald in regarding JPsedisca graduatana as a 
variety of dorsisignatana, the hindwings are more 
reddish-brown and the dorsal patch is much squarer 
and more upright than in that species of which I have a 
very long series presenting almost every possible grade 
of variation from the pale buff-coloured Californian 
specimens to the dark greyish fuscous varieties from 
N. Carohna. 
Psedisca castaneana, sp. n. (PL XII., fig. 6.) 
Antennce pale cinereous, distinctly banded above with fuscous. 
Palpi (broken). Head chestnut brown ; face white. Thorax 
chestnut brown, whitish posteriorly. Forewings shining white 
and bright chestnut brown in about equal proportions, the former 
occupying the central portion of the wing, the latter forming a 
strong basal patch with convex outer edge, broader on the dorsal 
than on the costal margin, a median costal blotch dilated and diffused 
outward and downward and overspreading the white ground-colour, 
with a slight chestnut tinge, to the anal angle, also forming two 
small costal spots beyond it, and covering the whole apical portion 
of the wing, except a reduplicated white costal streak before the 
apex ; the bright chestnut apical patch throws out a strong 
projection on its inner edge above the middle ; cilia rosy grey, 
with some blackish scales along their base below the middle of the 
apical margin. Bxp. al., 15 mm. Hindwings shining pale grey. 
