204 THE CANADIAN ENTOMOLOGIST. 



line of the ground colour, only a little irregular, variably marked by a 

 dusky preceding shade or a darker terminal space; rarely by both. There 

 is no dark terminal line and in only a few cases are there small dusky 

 lunules before the paler line at the base of the fringes. No trace of a 

 claviform in any specimen. Orbicular of moderate size, or large, round or 

 nearly so, concolorous or slightly paler, sometimes defined by a slightly 

 darker border, sometimes by a pale annulus and sometimes scarcely out- 

 lined at all. Reniform large, broad, upright, scarcely kidney-shaped, 

 never completely and sometimes not at all outlined; usually concolorous, 

 occasionally a little paler in the middle and rarely a little darkened 

 inferiorly. Secondaries white in both sexes, in the female tending to a 

 dusky outer border; but that is never strongly marked and often absent. 

 Beneath, primaries silky-whitish with a reddish or creamy tinge, with a 

 discal cloud extending partially across the wing beyond the middle; second- 

 aries immaculate or with a smoky outer band and discal lunule. 



Expands. — i. 00-1.40 inches = 25-35 mm. Habitat. — Stockton, 

 Utah, September 18 to October 4; Mr. Thomas Spalding. 



Eighteen males and ten females, most of them in good condition and 

 showing so great a range of variation that I am by no means certain that 

 only one species is involved. Of one form I have 8 $ and 3 9 , and in 

 all these a distinct reddish tinge is obvious. The size ranges from 1.27 to 

 1.40 inches, most specimens reaching and few exceeding 1.35 inches. 

 The surface is obviously powdery, but all the markings are easily made 

 out. Of a second form I have 6 $, and 5 9 - and all of these are creamy - 

 gray, with hardly a trace of red. This ranges in size from 1.23 to 1.35 

 inches, but most of the specimens are about 1.30 inches in expanse. The 

 surface is distinctly less powdery and the tendency is to an obsolescence 

 of the maculation. Of the third form I have 4 ^ and 2 9 , ranging in 

 size from i.oo to 1.20 inches, none of the males exceeding i.io, while the 

 two females are nearly of a size. This has a little reddish in its general 

 appearance, but the maculation is greatly obscured throughout. This 

 form is the more likely to prove distinct, and I propose the term uramina 

 for it to call attention to its existence. 



The body is robust, the thoracic vestiture somewhat loose, composed 

 of long, flattened hair, with a finer woolly admixture, collar and patagia 

 not well marked. The antennas are long, in the male distinctly pectinated, 

 but the teeth are not long and are furnished with terminal as well as lateral 

 bristles. In a general way the species is allied to edictalis. 



(To^be continued.) 



