BUTTERFLIES OF THE VICINITY OF NEW YORK CITY 



which occurs on the alder. It is three-brooded, the first brood 

 appearing from the latter part of May to the middle of June ; the 

 second early in July, continuing to fly until the early part of August; 

 the third brood appears from the middle of August to the end of 

 September. 



Family HESPERID^. 



The members of this family are known as Hesperids or Skip- 

 pers, the latter name having been applied on account of the 

 peculiar flight of the species. The flight is very rapid, varied 

 and interrupted, terminating suddenly after a short career and 

 suddenly resumed. It is hurried and intermittent, never steady 

 or sailing like that of the other groups. The butterflies almost 

 invariably delight in the hottest sunshine, and generally fre- 

 quent open meadows. They may be known readily by their 

 antennas, which are abruptly hooked at the tip. The caterpillars 

 have between the head and first segment a distinct neck which 

 gives them a very characteristic appearance. 



Synopsis of the Hesperidce. 



Ancyloxpyha. 



Fore wings blackish, washed with orange, ochraceous. 



Under side of hind wings clear orange, ochraceous. . .A. mtmitor. 



Pamphila. 1 



With a short black bar on fore wings at end of cell. 



Under side of hind wings with a large yellow patch in 



the middle P. hobomok. 



Under side of hind wings almost entirely yellow, brown 



at base P. zabulon. 



1 It is very difficult to give a satisfactory synopsis of the genus Pamphila, 

 as the sexes of each species differ in markings on the upper side, especially on the 

 fore wings. The males of some species are provided with a stigma, which is 

 more or less distinct or wanting entirely ; while in the females it is always absent . 

 The markings and coloration of the under side of the hind wings, however, are 

 constant in both sexes, and by means of this they may be readily united, or the 

 species separated. The stigma is a velvety mark on the fore wings. 



