black edges to patagis. Black maciiiations of primaries minuleiy reticulate. Two 

 prominent transverse lines, the inner line forking between vein i and inner niaigin, 

 the outer line having two prominent forks, the upper one dividing between first 

 sub-costal vein and costa, thus enclosing a sub-triangular space between centre of 

 costa and apex ; the lower one, of smaller dimensions, forking at angle. 



Secondaries of a uniform light grayish, silken gloss. Abdomen of darker 

 gray, especially near basal part, hairy, of silken gloss, and slender. Palpi and 

 legs of the same color. Below as above, the reticulations of primaries and the 

 transverse lines fainter, with whitish fringes along inner margin. Expanse of 

 wings, 33 mm. Length of body 13 mm. 



Habitat, Colorado. Type i r^ i'l the collection of Mr. Neu- 

 moegen, received from Mr. D. Bruce, from Colorado. Another 

 specimen, exactly like this one, was found by him at electric light, 

 but in poor condition. We see no course but to describe this 

 form. Walker described a Q, as C. popidi from Hudson's Bay. 

 The description answers nearly in every point to C. bri/cci, PVench, 

 but before Walker's type has been examined, nothing definite 

 can be said about it. Perhaps T. pcrplcxus may prove to be the 

 (^ of C. popiili : but we leave this matter for future investigation. 



tienus Hypopta IfWbii. 

 H. edwardi n. sp. 



Head and body white, grizzled with black scales ; antenna- white on the shaft, 

 the pectinations blackish. Fore wings white, irrorate with black scales, heaviest . 

 over the apical portion and part of wing below median vein and vein 2, less thick 

 over the cell, where the white ground predominates. A faint, brownish, diffuse 

 coloration in the interspaces between veins 2-5 at their bases. Fringe white, with a 

 narrow brown terminal line. Hind wings brownish gray, from the heavy sprink- 

 ing of dark scales. Fringe as on fore wings. Below, the fore wings are blackish, 

 shaded ; the hind wings largely white. Expanse, 40 mm. 

 Type I r^' in Mr. Neumoegen's collection. 



H. ethela n. sp. 



Head and body gray, black and white haiis mixed. .Vntenn;u whitish on the 

 shaft, pectinations blackish. Primaries blackish gray, the ground color white, 

 but heavily irrorale throughout with black scales, most heavily at apex and outer 

 margin. At the end of cell a small white spot, from which the irrorations are 

 absent, and just below it an elongated black spot. A terminal black line. Fringe 

 white, spotted with black at termination of nervules. Secondaries nearly black, 

 especially centrally. Costal area much paler, as is also abdominal margin. Fringe 

 spotted as on primaries. Both wings below blackish gray, paler along margins. 

 Fringes spotted as above. Expanse, 28 mm. 



'J'ype I cT' in Mr. Neumoegen's collection. 



H. Cornelia n. sp. 



Body parts sordid white, shaft of antennae white, pectinations blackish. Fore 

 wings white, with a faint brownish tinge which becomes marked beyond the 

 ceil, predominantly in two obscure, parallel transverse lines, the outer of which is 



