344 PHYSICAL GEOGRAPHY. 



even CEneis Aello was not infrequent, but Pieris Callidice was not 

 seen. 



Qlneis Aello was very wary, and possessed of a very vigorous, energetic 

 flight ; CE. semidea, on tLe other hand, has a very weak flight, and suffers 

 itself to be blown about at random by the wind. This difference seems 

 all the more striking when we remember that CE. semidea inhabits a 

 region of tempestuous winds, where existence would seem impossible to 

 a butterfly, unless unusually gifted. Both species, when at rest, sit with 

 wings back to back, the front pair concealed as much as possible between 

 the hind pair; but CE. Aello always sits erect, or only slightly inclined, 

 while CE. semidea is rarely er§ct, and often, when it has alighted upon the 

 horizontal surface of a rock or by the muddy brim of a pool, fairly lies 

 upon its side, as if dead. 



In the following pages we give a list of the butterflies and Orthoptera 

 of New Hampshire, as far as they are known. The list of Orthoptera is 

 given almost entirely from memoranda collected by myself. For notes 

 on the butterflies, I am indebted to many persons, but especially to Mr. 

 C. P. Whitney, of Milford, N. H. In this list I have incorporated as full 

 an account as possible of the two butterflies peculiar to the barren sum- 

 mits of the White Mountains. 



II. List of the Butterflies of New Hampshire, with Notes on 

 THEIR Geographical Distribution. 



The names used in the accompanying list are those of my Systematic 

 Revision of some of the American Butterflies. 



NYMPHALES. 



I. CEneis semidea Butl. 



[Plate A, Figs. 2, 4, 6, 9, 11, 13, 14; 2, imago; 4, chrysalis, dorsal view; 6, ib., 

 side view ; 9, larva, dorsal view of hinder extremity ; 1 1, ib., head ; 13, ib., side view ; 

 14, ib., dorsal view.] 



As Stated in the first part of this memoir, this insect probably occupies 

 a more restricted geographical area than any other butterfly in the "world, 

 the narrow area of the alpine fauna of the White Mountains. Dr. Har- 

 ris's assertion that "it has also been seen on the Monadnock mountain, 

 and will probably be discovered on the tops of the high mountains in our 



