44 
TOETRICID.E. 
costa straight ; apical margin sliglitly oblique and concave : some very faint ochreous blotches, 
one near the base of the dorsal margin, others towards tlie middle of the wing, and some 
very faint ochreous streaks along the costa ; above the anal angle are a few black dots : 
cilia white, irrorated with minute black scales. Hind wings pale greyish white ; cilia white. 
3 J* , 1 ? . Expanse of wings 22 millims. 
Siskiyou County, California, September 3rd, 1871. 
PsBdisca luridana. (Plate LXX. fig. 3.) 
Antennte slightly annulated ; head, palpi, thorax, and fore wings almost ochreous 
whitish ; the foi'C wings nearly three times as long as wide, the apical margin very oblique, 
convex, faintly blotched or partly suffused with very pale fawn-colour, sometimes with a few 
black scales above the anal angle : an appressed costal fold in the male ; the costa scarcely 
arched ; apical margin oblique, not concave : cilia sometimes slightly irrorated witli fuscous. 
Hind wings pale greyish straw-colour. 2 ^. Expanse of wings 19 millims. 
North California, SejDtembcr 7th, 1871. 
Paedisca argentialbana. (Plate LXX. fig. 4.) 
Palpi short, thickly clothed ; the apical joint not exposed ; white : head and thorax white ; 
antennae whitish. Fore wings — with an appressed costal fold in the male ; the costa slightly 
arched j apical margin oblique, not indented — silvery white, faintly irrorated with scattered 
greyish-fuscous scales : some faint oblique greyish-fuscous costal streaks ; and a faint 
reduplicated dash of the same colour from the apical margin below the apex, continued to a 
point along the upper edge of the cell : the ocellated spot contains on its inner side one 
and on its outer side two small sublustrous silvery patches : the cilia white, irrorated with 
greyish fuscous. Hind wings very pale grey, with a faint yellowish tinge along their margin 
within the white cilia. Expanse of wings 15 millims., ? 13 millims. 
Texas. 
This species differs from PcecUsca agricoJana chiefly in the purer white of the fore wings, 
in the much smaller size, and in the more shining ocellated spot. 
Psedisca resumptana. (Plate LXX. fig. 5.) 
Penthina resumptana, Wall-. Cat. Lep. Hct. xxviii. p. 376. 
Head cinereous : antennse greyish fuscous, scarcely pubescent. Fore wings — with a rather 
long appressed costal fold in the male — greyish white, shaded and mottled with ashy grey, 
especially towards the apex, with several abbreviated oblique tawny costal streaks ; an ill- 
defined outwardly angulated tawny-speckled basal patch, more consj^icuous towards the dorsal 
