Jan. 



1902 



,"] 



WEEKS SIX BOLIVIAN BUTTERFLIES 



Upper surface of fore wing dark brown, nearly black. Hind margin has a 

 border of somewhat lighter color tending to grayish, one eighth inch wide. 

 Running down the central portion of this border is a thread of ground color. 

 Within this, near apex and downward from costa, are three or four subcostal 

 dots of same color. Extending from costa downward across end of discoidal 

 space, is a band of same color, ending at submedian nervure. There is also 

 a band near base, running from median nervure to submedian nervure. These 

 markings are so indistinct that it is hard to locate and describe them. 



Upper surface of hind wing is much the same, the marginal border being less 

 prominent. The hind marginal fringe is lighter than ground color. 



Under side of fore wing of the same ground color as upper surface, the basal 

 and central^portion showing blacker. Inner marginal area light brown. 



Under side of hind wing of the same ground color as fore wing. There are 

 no markings. The anal angle area is dusted slightly with light scales extend- 

 ing upward toward base and also along hind margin. Marginal fringe, of 

 ground color. 



Described from a series of specimens taken five days' travel 

 north from Cochabamba about August 25, 1899. 



Cystineura aurantia sp. nov. 



Habitat: Bolivia, near Coroico. Expanse: 1.65 inches. 



Head nearly black, grayish underneath. Palpi black, grayish underneath. 

 Antennae black with white annulations at base of each joint. Club black 

 with orange tip. Legs gray. Thorax black with gray hairs. Abdomen black 

 above, gray beneath. 



General ground color of upper surface is white with orange and dark brown 

 markings. 



Costa of fore wing dark brown. Hind margin slightly dentated, a slight 

 thread of white at edge, and within this a narrow margin of dark brown den- 

 tated on inner side. The entire fore wing may be divided equally among three 

 colors, orange, white, and dark brown. The orange covers the outer third, 

 covering the apical space and narrowing to a point at lower angle. The 

 white area covers the central portion, starting at inner margin, from lower 

 angle to a point one quarter inch from base and narrowing as a triangle to a 

 point on costa one third distance from apex to base. The upper portion of 

 this white area is represented by four white interspacial dashes running down- 

 ward at right angles to costa and then broadening out and occupying nearly 

 all of the lower interspaces. The discoidal space and costal space above, also 



