THE CANADIAN ENTOMOLOGIST. 151 



Habitat. — Calgary, Alberta, July, August and September, F. H. 

 Wolley Dod. 



Twenty examples, representing both sexes in almost equal numbers. 

 The relationship is to fuessoria because of the obvious median line ; but 

 also to tessellata because the space between the ordinary spots is darkened. 

 It is one of the group containing incubita, terrenus and pleuritica ; 

 differing from each as much as they do from each other. 



Mamestra obesjiia, n. sp. — Ground colour a somewhat luteous gray, 

 more or less shaded with reddish gray and smoky brown. Head with 

 brown or blackish frontal line ; collar with median and subapical black 

 lines ; patagia with black or brown submarginal line ; disc a little 

 discoloured, tufts well marked. Primaries with all the ordinary markings 

 well defined, but so broken and shaded as to seem confused. Basal line 

 black, geminate, included space pale, dislocated on the median vein. 

 T. a. line geminate, black, the two portions almost equally defined, 

 included space of the palest ground ; as a whole a slight outcurve, only 

 a little indented on the veins. T. p. line geminate, obscure, inner portion 

 a little lunulate, outer almost even ; as a whole it is abruptly bent on the 

 costa, a little curved over the reniform and somewhat drawn in below. 

 There is a narrow, obscure, median shade line which crosses obliquely 

 between the ordinary spots and afterwards continues from the bottom of 

 reniform, close to the t. p. line. S. t. line pale, somewhat contrasting, 

 preceded by sagittate black spots, strongly indented on veins 3 and 4 and 

 again below the apex, forming in the first case a conspicuous, pale W. 

 A series of black terminal lunules. The long fringes are interlined, a 

 little notched, cut with whitish opposite the veins. Claviform rather 

 broad and short, black margined, filled with smoky, forming a conspicuous 

 feature. Orbicular round or oval, oblique, pale ringed, dark centred, an 

 oblique paler shading, continued behind the claviform to the t. p. line. 

 Reniform large, upright, a little drawn in centrally, more so from outside, 

 narrowly pale ringed, dusky-filled. Secondaries pale yellowish to a 

 broad blackish margin. There is a smoky discal lunule, a narrow smoky 

 line before the broad margin, and the fringes are yellowish. Beneath, 

 reddish gray, powdery, each wing with a blackish discal mark, a smoky 

 median line, a dusky s. t. shading before a pale terminal space, and a 

 series of small terminal lunules. , 



Expands r. 20-1.32 inches =30-34 mm. 



