THE CANADIAN ENTOMOLOGIST. 27 



BOOK NOTICES. 



The Butterflies of North America : By W. H. Edwards. Third 

 Series. Part XIII. 



Another part of Mr. Edwards's magnificent work has been received, 

 and is of particular interest to Canadian students. The three beautiful plates 

 represent the following : — Plate I., Neominois Ridingsii, Edw. The upper 

 and lower sides of both sexes of the early and late forms are shown, to- 

 gether with the egg and pupa, and a full series of enlarged drawings illus- 

 trating the larva in all its stages. This is a Coloradan insect, and flies in 

 the mountains at an elevation of from 5,000 to 8, 000 feet. Up to the 

 present there is no recorded instance of A. Ridingsii having been taken 

 in Canada. 



Plate II. shows Chionobas yEno, Bdl , $ and % , and a variety of the 

 male, as well as Ch. Aifio, var. Assitni/is, Butler, and the egg of Cratnbis, 

 Freyer. yEtio is an arctic species occurring with the variety in Labrador, 

 and also in Colorado where it inhabits the loftiest mountain peaks. An 

 interesting account of its habits is given from the notes of Mr. David Bruce, 

 who has done a great deal to work up the life-histories of the butterflies of 

 the Coloradan mountains. yEiio belongs to the Semidea group of the 

 genus, and has been confounded with that species and Crambis, Freyer. 

 Mr. Edwards says : — '' It was not till Mr. Bruce explored the peaks of 

 Colorado that it became possible to understand what ^no was, and the 

 limitation of Brucei made clear the position of Crambis." 



The series is now arranged as follows : — 



1. Crambis, Freyer. 



2. Brucei, Edw. 



3. ^No, Bdl. 



var. AssiMiLis, Butler. 



4. Semidea. 



5. subhvalina. 



Ch. Also, Bdl., Mr. Edwards rejects altogether as an American species. 



Plate III. shows Ch. Macounii, the grand species which was dis- 

 covered at Nepigon, north of Lake Superior, by Prof John Macoun, of 

 the Geological Survey, in whose honour it was named. Ch. Macounii 

 belongs to a different group of the genus to the species mentioned above, 

 and finds its place with Californica and some other large species occur- 

 ring on the Pacific coast. It is a fine insect expanding 2-23^ inches 



