296 THE CANADIAN ENTOMOLOGIST. 



• Hind wings, the same as fore wings, the orange fringe extending 

 from upper angle to anal angle is more prominent than on fore wings. 



Under side of both wings, of dark bronze. The lower half of 

 discoidal space, darker, the dark suffusing into three lower interspaces. 

 Nervules and nervures, black. Hind margin fringed with orange, same 

 as on upper side. 



Under side of hind wings, the same, except the darker area borders 

 the inner margin, one eighth to one fourth inch wide, not intruding on 

 discoidal space. 



Described from species taken five days' travel north from Cocha- 

 bamba. It is very near P. tenebricosa, Hew., except in the cilia, which is 

 orange instead of pure white. 



Pamphila argentea, sp. nov. 



Habitat: Bolivia; Cusilluni District. Expanse, 1.20 inches. 



Head, thorax, antennas, abdomen and legs, bronzy-brown above ; 

 more grayish beneath. 



Upper side of fore wings, bronzy brown. In subcostal interspaces, 

 at apical area, are two whitish dots. Just above the second subcostal 

 nervule, is a larger dot, and in interspace below, somewhat nearer base, 

 is" another still larger one, with its upper part nearer the hind margin 

 than the lower part. In interspace below, is another longitudinal spot, 

 of nearly similar size, resting on submedian nervure. 



Upper side of hind wings, bronzy brown. In discoidal space is an 

 indistinct lightish space, and running from near upper angle across the 

 wing to near centre of inner margin, is a row of lightish interspacial 

 dots, five or six in number. 



Under side of fore wings, dark brown, central portion of hind 

 margin being dashed with lighter scales. The whitish spots of upper 

 surface are repeated. 



Under side of hind wings, rich dark brown. In discoidal space is a 

 prominent spot of silvery white. From upper angle across the wing to 

 near the centre of inner margin is a row of silvery-white interspacial 

 spots. These spots are very prominent, forming the noticeable marking 

 of under side. Along hind margin of both wings, within the hairy fringe, 

 is a dark thread. 



Taken near Cusilluni in May, 1899. 



