1874] 141 [Morrison. 



The ground color is white, almost totally obscured, except in the 

 ordinary spots and on the subterminal space, by black or gray shades. 

 The nervules, and a portion of the basal space, are tinged with glau- 

 cous. Half-line present. The interior line irregular, simple, obsolete 

 below the claviform spot. The latter round, large, whitish, outlined 

 in black. Above, is situated the white, oblique orbicular spot, contain- 

 ing a central gray shade. The submedian nervure is plainly black- 

 ish. Median shade blackish, suffused and irregular, lost in the dark 

 median space. Reniform spot white, containing a central gray shade, 

 well-sized, unsymmetrical, its defining line broken. The exterior 

 line is black, simple, continuous, dentate, much drawn in below the 

 reniform spot, and forming a particularly deep lobe above the sub- 

 median nervure. Subterminal space more or less distinctly whitish 

 below the costa, this color culminating in a very conspicuous white 

 spot, filling the median lobe of the exterior line. The terminal line 

 is whitish, distinct, but somewhat broken, forming two short, but evi- 

 dent teeth on the second and third median nervules. The line cuts 

 and divides into two portions, the black shades which extend over 

 the terminal and latter part of the subterminal spaces. The usual 

 subapical white dots, and a similar series at the base of the fringe. 

 Posterior wings dark fuscous, becoming lighter and partially translu- 

 cent at the base; a faint discal dot. The fringes are whitish. Be- 

 neath very uniform in coloration; the anterior wings dark gray; 

 whitish scales line the costa ; the posterior wings are whitish, with a 

 distinct discal dot ; a common line extends over both wings. 



Hab. Quebec, Canada. 



Kindly lent me for identification by my friend Prof. F. X. Belan- 

 ger, of the Universite Laval. 



The dark, almost black coloration of the anterior wings contrasting 

 with the four white spots in their central portion is characteristic of 

 the species. Of these spots, two, the orbicular and claviform, are 

 comparatively small and well-defined; the remaining two, the ren- 

 iform and the spot in the lobe of the exterior line, are large and 

 irregular. 



Mamestra illabefacta nov. sp. 



Expanse 35 mm. Length of body 16 mm. 



Eyes hairy. Male antennas setiform. Collar showing a central, 

 and a terminal transverse dark line, the latter edged with whitish. 

 Tegulse edged with black. Thorax in both specimens before me 

 somewhat defaced, but there are evidently low prothoracic and 



