510 
Lord Walsingham on 
scales. Forewings of approximately even width throughout, the 
costa slightly arched, the apical margin slightly sinuous not oblique, 
the anal angle rounded ; greyish white, with leaden grey spots and 
blotches ; a basal patch occupying nearly one-third of the wing, its 
outer edge serrate throughout, is composed of an equal admixture 
of black, leaden grey, brownish grey, ferruginous and whitish 
scales distributed in patches, more or less blending with each 
other ; the same colours are found in a series of scattered patches 
following the costal margin and distributed across the wing beyond 
the middle and towards the apex, the black prevailing in a broken 
quadrate patch resting on the dorsal margin before the anal angle 
and in a semicircular subapical spot, with some smaller spots below 
it, parallel to the margin, which is blotched with ferruginous, 
bounded inwardly by a sinuate white line, the white ground-colour 
appearing also in a series of about seven geminated costal streaks, 
commencing at the outer edge of the basal patch, and ending before 
the apex ; the cilia are for the most part brownish grey broken and 
mottled with white. Exp. al., 25 mm. Hindwings brown ; cilia 
greyish white, with a brown dividing line. Abdomen brownish. 
Hind legs whitish cinereous, the tibiae thickly clothed with long 
scales, the tarsal joints banded with grey. 
Type, ?. Mus. Wlsm. 
Hah. North Carolina (Morrison). 
A conspicuous and very distinct species of the group 
allied to scudderiana, Clem., but surpassing that species 
in size and distinguished from its allies by the uniformly 
dark hindwings and rich mottling of the forewings. 
Psedisca dilatanUj sp. n. (PI. XII., fig. 14.) 
Antennce very pale fawn colour. Palpi projecting more than 
tw ce the length of the head beyond it; fawn-white, thickly dusted 
with fawn-brown on the outer sides. Head fawn-white, sparsely 
sprinkled with brownish scales. Thorax fawn-white, sprinkled 
with fawn-brown. Forewings somewhat narrow at the base, 
widened outwardly, the apex acute, the oblique apical margin 
slightly impressed beneath it, costal margin slightly rounded ; very 
pale (almost whitish) fawn with a pale fawn-brown basal patch, 
occupying fully one-third of the wing-length, narrower on the 
dorsal than on the costal margin, its outer edge very oblique and 
angulated below the costa ; a rounded dorsal patch of the same 
colour before the anal angle and a sinuous streak of varying width 
commencing on the cell and ending at the apex, the ground-colour 
