P^tEDJSCA. 
39 
tlie arrow head, would represent the point of tlie barb. Hind wings greyish white, with a 
grey line along the middle of the paler cilia. 1 . Expanse of Avings 16 millims. 
Shasta County, California, end of July 1871. 
Psedisca illotana. (Plate LXIX. fig. 1.) 
Head and palpi ferruginous; the latter short and obtuse, the apical joint not exposed ; 
antennae fuscous. Fore wings — with appressed fold in the male reaching to the middle of the 
costa, slightly bent downwards towards the apex — white, streaked and speckled with pale 
greyish fuscous ; an obliquely margined basal patch dark fuscous, streaked transversely with 
paler greyish-fuscous wavy lines, sometimes with a bluish tinge, and reaching anteriorly 
beyond the end of the costal fold, posteriorly beyond the first third of the dorsal margin ; 
beyond the basal j)atch, coming from the costa, are some pale fuscous waved streaks, the last 
only prolonged and extending along the apical margin ; the apex itself fuscous : parallel to 
the lower portion o£ the apical margin, but separated from it by a clear space, is a row of 
three or four black dots above the anal angle ; and between these and the basal patch are some 
pale greyish-fuscous mottlings assuming rather the form of an obsolete median fascia. 
2 c?, 1 ? . Expanse of wings 16-18 millims. 
Rouge Hiver, Oregon, May 1872. 
This species is nearly allied to the European P. trijjunctana, S. V., but differs in the 
basal patch being less abruptly defined, the anal aiigle being clear white, not suffused with 
greyish fuscous as in that species, and in the row of black dots being distinctly detached from 
the extreme marginal shade. In general appearance also it is smaller and paler. 
Paedisca terracoctana. (Plate LXIX. fig. 2.) 
Head reddish ochreous, face whiter : palpi whitish ochreous, touched with greyisL 
fuscous at the tips : antennte simple. Fore wings — the costa slightly arched ; apical margin 
scarcely oblique, slightly concave ; costal fold long and narrow, not closely appressed— whitish 
ochreous, with bright reddish rust-eoloured streaks and markings (a curved narrow spot on 
the dorsal margin before the middle preceded by some streaks, of the same colour ; an 
oblique fascia from beyond the middle of the costa to within the anal angle, and some bright 
streaks from the costa towards the apex) ; a blotch of sprinkled fu.seous scales through the 
oblique fascia and beyond it above the middle of the wing, and a line of sprinkled fuscous 
scales along the apical margin at the base of the cilia. Hind wings greyish fuscous. 4 j , 3 $ . 
Expanse o£ wings 17 millims. 
Oeciirring in some abundance among Manzanita, Arctostaplujlos ylauca (Lindl.), ]Mount 
Shasta, August 1871 ; also in Mendocino County in June. 
