154 THE CANADIAN ENTOMOLOGIST. 



143. This form is Caradrina nitms Dyar without a doubt. The seven 

 types are all males. Four are from Kaslo, and the other three from Turtle 

 Mountains, N. D., which according to my atlas are continued across the 

 boundary into Manitoba. The average of Calgary specimens are a little 

 larger, darker and narrower of wing than my series under tnirajida, from 

 New Brighton and Pittsburg, Pa., Lawrence, Kan., and Chicago, 111. But 

 these differences are not constant. I can match Chicago and Calgary 

 males, good fresh specimens too, in every detail. Unfortunately, out of a 

 series of sixteen local specimens, only two are females. These do not differ 

 in secondary structure from the males, having slender thorax, and long slen- 

 der abdomen. Six of my 7?ii?'(inda series are females, out of thirteen. These 

 all have more robust thorax and abdomen, and the latter is also shorter, 

 not exceeding the anal angle of the secondaries. This character may or 

 may not denote a distinct species, but, not to commit myself further, I 

 expect at any rate that nite?is occurs at Chicago. There is no type of 

 miranda in the British Museum, nor have I any note of the series there, 

 but Sir George Hampson states that iiitois has a white point in the 

 reniform which miranda lacks. This does not hold in my series either, 

 as the majority in both have white points. It looks to me as though 

 Dr. Holland, on Plate xix, fig 20, had figured mira^ida female as 

 " Ort/iodes vecors. male." The series under miranda at Washington, on 

 the strength of which nitens was described, may prove to be a mixture, 

 but in this I may be wrong, except as to the distinctness of a worn male 

 from Kaslo, like which I have two fine specimens from the same locality, 

 and have seen others. These are, as Dr. Dyar remarks in the Kootenai 

 List, "large and grayish powdery," and have the t. a. and t, p. lines faintly 

 indicated as broad, diffuse stride, with uniform, slightly smoky secondaries. 



144. C. pimctivena Smith. — The type is at Washington, and is a male 

 labelled " Laggan Sta., N. W. T., Bean." 



ri45, Hii/ia senescens Gx\. 



[146. H. vigilans Grt. — As to the relationship of these two forms, I 

 have been able to discover nothing more than I knew when I previously- 

 published. I have, however, compared specimens with both types, and 

 the names are correct. The type oi senescens is a female from Lewis Co., 

 N. Y., and vigilans is also a female, from Orono, Maine. Sir George 

 Hampson makes both synonymous with iris Zett., which was described 

 from Lapland. About crassis, which he makes the first synonym and 

 "ab. 1." of zWi, I know only what I have read in catalogues. It was 



