182 THE BUTTERFLIES OF THE WEST COAST 



Its manner of flight is to sail along with the wings out horizontal, 

 giving little twitches of the wings to help it along, and circling 

 about, to watch the visitor, and soon returning to the place whence 

 it started, as it has places of vantage from which it can observe 

 everything that goes on in its neighborhood. They are very fond 

 of sipping water at wet places on the ground, but they do not 

 hover together so gregariously as do some other species. 



The sexes are very similar in appearance, and must be deter- 

 mined by the lappets, and the body, the same as most of this class 

 of butterflies, as has been already explained. 



The larval food-plant is quercus, oaks of the evergreen, or 

 chrysolepis order or type. 



Genus APATURA. 



There are no Apatura butterflies on the West Coast proper, 

 and but two varietal forms are found on the mountains of Eastern 

 Arizona, so that this genus has very little of interest for us. I give 

 two figures, to show the style of these Eastern species, more than 

 for anything else. Apaturas live on trees and bushes, such as 

 prunus and celtis, that is, the larvje do. 



244. Apatura Celtis. 



Plate XXIII ; Figure 245, from Colorado ; T. L. Mead. 

 This is a typical Eastern form. The Apaturas differ one from 

 another in size, and in color a little, but the chief key is the ocellus 

 in the hind part of the fore wing; some have none, others have 

 one, and others two. Celtis has but one. 



245. Apatura Montis. 



No figure. 

 Montis is a Western form of the Texan species Antonia ; the 

 typical species does not come to Arizona, but Montis is found in 

 the eastern mountains. Montis is larger and darker than the figure 

 of Celtis, foregoing, and has on the fore wing two ocelli, the upper 

 one being pupilled with white so broadly that the ocellus is nearly 

 obliterated. 



