THE CANADIAN ENTOMOLOGIST. 257 



Ottawa, of which one was pale, and that Prof. Macoun took 3 $ 9 , all 

 yellow, in Prince Edward Island; but I do not think Mr. Fletcher has ever 

 had a white female Interior. Mr. Fletcher has also one 9 of the yellow 

 form from British Columbia. If my belief in this matter should prove 

 to be well founded, the species should simply be known as Colias Interior 

 with an albinic variety of the female, and the name Laurentina should 

 simply fall into the synonymy. 



Mr. Scudder farther says that " the males are very much more 

 numerous than the females," and among his " desiderata " asks why 

 this is so. 



On general principles I should think such a condition of things 

 extremely doubtful, and I believe Mr. Scudder's assertion to be founded 

 on insufficient evidence, especially as in the collection which Mr. Roland 

 Thaxter made in Cape Breton, and which furnished Mr. Scudder with his 

 types of C. Laurentina, there were 18 females to 21 males, certainly no 

 great discrepancy. 



I have only twice met with this species in numbers, but neither 

 experience would lead me to form such an opinion. The first occasion 

 was on 8th July, 1890, along the line of the C. P. R. west of Sudbury, 

 when travelling to Nepigon in company with Mr. Fletcher. Whenever 

 the train stopped for a minute or two we jumped off with our nets, and 

 I think we took a dozen between us, and I believe all were males, but it 

 was evidently too early for the females, as the males were quite fresh, and 

 the next day when we arrived at Nepigon, where the season is later, we 

 found that the males had not yet appeared. I think it probable that a 

 fortnight later plenty of females would have been flying near Sudbury. 



I may say, however, that the evidence of Mr. John D. Evans, of 

 Trenton, who collected for a number of years at Sudbury, is rather on the 

 other side, as out of a series of 31 specimens in his collection only 4 are 

 females. This is probably accounted for by the fact that out of 

 the 31 no less than 19 were taken prior to July 5th, and for 4 others 

 the date of capture is unknown, and I liave already pointed out that the 

 females probably appear later. Twenty-one out of the 31 were taken by 

 Mr. Evans in 1886, who found this species comparatively scarce in later 

 years. 



In 1894, at Paul Smith's, I took seven females to two males, but, of 

 course, the former are easier of capture. When this matter has been 

 further investigated, I am confident it will be found that no serious 



