156 THE CANADIAN ENTOMOLOGIST. 



black spot shows beneath as small and linear. The extra-discal 

 line is quite angled beneath and has a pointed instead of a rounded 

 projection, but the line fades out as it approaches the inner margin. 

 Beyond the extra-discal white line is a large square reddish-brown 

 patch, followed by a whitish ashen patch, which extends to tip of 

 wing, and is marked with two minute points on costa. Beneath 

 this ashen patch the wing is rosy along outer border to inner margin. 

 Hind-wing, from base to white discal dash, clear, with a rosy 

 flush. In gibbicostata the same space is heavily striated. In one 

 specimen there is a white extra-discal band curving across the 

 wing; in the others it shows only on inner and outer margins. 

 On the inner margin the white extra-discal line is shaded with a 

 large rosy-brown patch. There is another patch at junction of 

 veins 6 and 7, below outer margin. The outer border is rose- 

 shaded, this colour sometimes running into the checkered fringe. 



This geometer can be distinguished from allied species by the 

 conspicuous costal patch above, shaded with red beneath, and the 

 rosy shading of the entire fore-wing. On the hind-wings the two 

 widely-separated rosy-brown patches, white discal dash and extra- 

 discal line separate it from albiapicata Grossb. The most dis- 

 tinctive feature is the clear central space extending to the discal 

 dot, which has only a rosy line and lacks striations. I think this 

 species, when once seen, can hardly be confused with any other. 



Mr. Blackmore tells me this species is very rare, and even the 

 older collectors, like Mr. Hanham, have seen only one or two 

 individuals. I take pleasure in naming this pretty species after 

 my friend Mr. Blackmore, who has done such valuable collecting 

 in the vicinity of Victoria. 



Type—1 cf , Victoria, B. C, July 3, 1914, from E. H. Black- 

 more, in my collection. 



Paratypes— 8 d", Victoria, July 2-27, 1913, and 1914, E. H. 

 Blackmore; six in his collection, two in mine (No. 264 and No. 305) . 



Petrophora defensaria var. mephistaria nov. 



Expanse 20 mm. Head and body light grey. Fore-wings 

 flesh-coloured and almost immaculate, except for the solid black 

 median band. There are traces of a faint, slightly angled, basal 

 band below the costa, followed by a clear whitish, ashen or flesh- 

 coloured space, extending to the wide, black, median band. Inner 



