128 THE CANADIAN ENTOMOLOGIST. 



In my experience, the larvae eat holes in the leaf, sometimes away 

 from the edge, and sometimes at the edge, though I occasionally noticed 

 a leaf where the parenchyma had been eaten out and the membrane left, 

 as described by Scudder. 



As I had found one or two larvae within curled-up dead leaves, I 

 thought they might seek such a retreat for pupation, and so kept one in the 

 breeding jar, and three out of the four that I carried to imago pupated inside 

 the leaf provided, and the fourth on the lid of the jar. The first one pupated 

 on 20th May, the second on 21st, the third not noted, and the fourth on 

 26th. On 1st June the first two were dark coloured, and both emerged 

 on 2nd June, the first in the morning and the second in the afternoon. 

 The third emerged on 4th or 5th, and the fourth either in the evening of 

 the 5th or morning of the 6th. The pupal period varied, therefore, be- 

 tween n and 13 days. 



Now, in regard to food-plant, I am positive that even if the second 

 brood ever feeds on Ceanothus (which I think most unlikely), the first 

 brood cannot, for the simple reason that it does not leaf out early enough. 

 There are several clusters of Ceanothus Americanus, L., the New Jersey 

 Tea, the flowers of which, by the way, are very attractive to Theclas, 

 growing within a couple of hundred yards of where I found the larvae of 

 Scudder ii on Lupine, but on 15th May, when these larvae were nearly 

 mature, the buds of the Ceanothus showed no signs of even swelling, so 

 if this butterfly exists north of the region of Lupine, we must look for 

 some other food-plant than Ceanothus. 



Postscript. — I wrote to Dr. Scudder about the question of food- 

 plant, but he was unable to give me any information, and then wrote to 

 Mr. Edwards, and received a reply as follows : 



" Coalburgh, W. Va., 17th Feby., 1902. 

 " Dear Sir, — 



"I have no recollection as to the Ceanothus. * * * I think S. 



has made a mistake in referring to me. 



"Yours truly, 



"W. H. Edwards." 



Since reading my paper, I have received a copy of the note on 

 " Scudder's Blue" by Mr. J. B. Williams, reprinted from "The Ottawa 

 Naturalist" of January, in which he records finding, on 7th Dec. last, two 

 eggs on the withered leaf stalk and seed-pod of Lupine. 



