152 THE CANADIAN ENTOMOLOGIST, 



Habitat. — Calgary, Alberta, head of Pine Creek, July 20, 22, and 

 August 5, F. H. Wolley Dod ; Denver, Colorado, July 8. 



One $ and three $ $ are now before me. The species is in a way 

 intermediate between M. Farnhanii and M. iri/olii, having the colour 

 contrasts of the former, with the build and maculation of the latter. The 

 specimen from Denver has been doubtfully associated with Farnhami 

 for some years ; but until I received specimens from Calgary I did not 

 feel safe in determining it as distinct. 



Mainestra Dodii, n. sp. — Ground colour lilac-gray, more or less 

 suffused with reddish brown. Head concolorous. Collar with a more or 

 less obvious brown median line. Thorax almost fawn-gray, not obviously 

 maculate. Primaries in a general way are gray in the basal and s. t. 

 spaces, and at the apex ; reddish or brown along the costa and in the 

 median space, the darkest portion between veins i and 2 and over the 

 claviform ; but no two examples are alike in the relative distribution of 

 the shadings. Basal line obscure, gray, not defined by darker lines. T. a. 

 line geminate, defining lines narrow, included space gray ; outcurved in 

 the interspaces and outwardly oblique. T. p. line gray, defined by the 

 dark median space and by a following dusky shading. S. t. line pale, 

 forming a small W on veins 3 and 4, preceded by a brown line or shade, 

 sometimes entire, sometimes broken up into spots. Terminal space 

 narrow, brown except at apex. A narrow, brown terminal line. The 

 long brown fringes are cut with gray on the veins. Claviform black 

 marked, broad at base, narrowed to a point near, but not quite at the t. p. 

 line. Orbicular oblique, varying in size and in the ground ; always at 

 least gray and sometimes contrasting ; sending an oblique gray shade 

 across the median space above the claviform. Reniform upright, of 

 moderate size, a little constricted, not well defined, reddish marked in 

 upper portion. Secondaries pale smoky yellowish, with a diffuse, broad 

 outer margin, yellowish fringes and a smoky discal lunule. Beneath, 

 smoky to yellowish-gray, powdery, all wings with a discal lunule and an 

 outer shade band, which is diffused and variable in the specimens. 



Expands i 25-1.50 inches =31-37 mm. 



Habitat. — Calgary, Alberta, head of Pine Creek, June 21, 22, 27, 

 July 4 and 7 ; mouth of Fish Creek, July 7, Mr. Dod; Bullion Park, 

 Colorado, July 27. 



Seven males and one female are at hand, no two alike, yet obviously 

 ou'j species, resembling Tacoma and rugosa. I had, in fact, considered 



