154 Journal New York Entomological Society. [Voi. xv. 



consider the true nevadce is extremely limited. The form that I have 

 as canadensis is less rare. 



PoUa glaucopis Hampson, is a new species from Vancouver and 

 resembles an intensified, brilliant lubens. I have no material from 

 that locality in that species ; but I do not doubt the distinctness of 

 the new form. 



And now we come again to Mamestra cristifera Wlk., and M. 

 lubens Grt. On the occasion of my first visit to the British Museum 

 I compared the types of the two forms and concluded that Mr. Butler 

 had been correct in placing them together. Mr. Grote never admit- 

 ted the correctness of this reference, and on my second visit, in 1900 

 I made another comparison in the light of greater experience. At 

 that time I noted that "Walker's type from Hudson's Bay has none 

 of the bright coloring of lubens ; is dull ashen, verging to blackish in 

 the dark spaces : is a smaller species and nearer to Invalida Sm. ' ' 

 Hampson refers lubens to cristifera, but makes it "Ab. i." and points 

 out the differences noted by me, except that he differentiates lubens 

 from cristifera instead of the reverse, as I had it. On this third visit 

 I again compared the types and other material and am convinced now 

 of the distinctness of the two forms. I have no cristifera in my col- 

 lection, but I do have a very fair series of lubens none of which ap- 

 proach the Walker type. 



Mamestra larissa Sm., is cited as a synonym of anguina Grt. 

 There is only one example of anguina, and that does not seem out of 

 place in the series of ten larissa. I have reexamined my series of 

 both species and feel very sure that with more anguina at hand Sir 

 George will be ready to admit the distinctness of my species. 



The series of specimens under the names vicina axid pens His, indi- 

 cates that a revision of these forms is needed, with long suites from 

 various localities for comparison. 



Scotogramma densa Sm., with megcBra Sm., as a synonym comes 

 into this series. I must confess I cannot see why this association is as 

 good as with submarina to which densa is much more closely allied 

 than it is to megcera. Dr. Dyar in his catalogue makes the latter a 

 variety of densa ; but the two are different in size, in wing form, in 

 ground color, and in the color of the secondaries in both sexes. 

 My material in these species is sufficiently good to demonstrate their 

 distinctness. 



Tczniocampa palilis Harv., is brought into this association and with 



