48 
TOETEICIDiE. 
margin on reaching the upper edge of tlie cell : the cilia are thickly irrorated with olivaceous 
fuscous : underside pale straw-colour, shaded and dotted with brownish fuscous. Abdomen 
and hind wings pale straw-colour delicately suffused with a fuscous tinge, except some pale 
blotches along the margin ; cilia paler. 1 c? , 2 ? . Expanse of wings 30-34 millims. 
Lake County, California, June 17t hl9th, 1871. 
Psedisca suhflavana. (Plate LXXI. fig. 3.) 
Head tufted in front, Avith palpi and antennae (which are pubescent in the male) pale 
ochreous fawn-colour ; the palpi thickly clothed, projecting about twice the length of the head 
beyond it. Foi-e wings scarcely more than twice as long as wide — ^male with appressed costal 
fold near the base ; apical margin oblique, dorsal margin slightly convex towards the base — 
pale ochreous fawn-colour, in the male much irrorated with sublustrous yellowish scales, 
especially towards the apical margin, with an ill-defined, almost obsolete fascia running 
from the middle of the costa towards the anal angle, and extending upwards parallel with the 
apical margin ; above the anal angle are one or two single black scales ; the costa is faintly 
dotted with brownish ochreous, the cilia slightly touched with fuscous in the male. Hind wings 
shining straw-colour, with a brownish-fuscous tinge in the male. 2 , 1 ? . Expanse of 
wings 27-31 millims. 
Eouge River, Oregon, end of May, 1872. 
Psedisca maculatana. (Plate LXXI. fig. 4.) 
Palpi projecting more than twice the length of the head beyond it, widely clothed and 
rounded at the apex ; pale fawn-colour, somewhat tinged with fuscous at the sides in the male : 
head, thorax, and antennae pale fawn-colour. Fore wings — about twice as long as wide, the 
costa slightly arched, with appressed costal fold near the base in the male — very pale fawn- 
colour, streaked or reticulated with wavy lines of a slightly darker shade, with a conspicuous 
buff-brown spot, elongated obliquely outwards at the middle of the dorsal margin, which it 
scarcely touches ; some lustrous streaks from the costa before the apex, the outer one or two 
bending parallel to the apical margin ; an almost obsolete half -fascia sloping from the middle 
of the costa towards the apical margin, more conspicuous in the female than in the male. 
Hind wings pale fuscous brown, slightly darker in the female ; cilia paler. 3 c? , 3 $ . 
Expanse of wings ^ 23 millims., ? 21 millims. 
Lake County, California, June 17th-19th, 1871. 
Peedisca irroratana. (Plate LXXI. fig. 5.) 
Head and thorax fawn-colour; palpi and antennae fawn-colour with a slight fuscous 
tinge, especially beneath : palpi more than twice as long as the head, thickly clothed. Fore 
wings — more than twice as long as wide, with the costa evenly arched^ apical margin oblique ; 
