26 ILLUSTRATIONS OF UNFIGURED LEPIDOPTERA. 



i^thilla Buffumi A. G. Weeks, Jr.^ 

 (J'late XVIII, Figure i.) 

 Habitat: Suapure, Venezuela. Expanse: 1.25 inches. 



Head and palpi above dark brown, with a few gray hairs ; below, nearly white. 

 Thorax and abdomen the same above as head ; below, gray. Antennas nearly 

 black, with indistinct white annulations at base of each joint. Club above 

 black, beneath grayish. Legs light brown, with slight white annulations at 

 joints. 



Upper side of fore wing dark brown, heavily dusted with grayish at basal and 

 inner marginal areas. The apical area shows none of this dusting except as 

 slight suffusion from basal side. A series of very prominent semitransparent 

 white spots extends from centre of costa across the end of discoidal space 

 towards lower angle. The first two of these are simply subcostal spots. The 

 next lower is large, covering the entire end of discoidal space. Below this is 

 another large spot, and between these, nearer the hind margin in first submedian 

 interspace, is another but smaller spot. Near the apex are two white subcostal 

 dots. The basal portion of discoidal space has a dark band extending down- 

 wards to the centre of inner margin. A similar dark band extends from below 

 the apical subcostal spots to the inner margin just outside the large white spots. 

 These are often indistinct, but show their permanent character in their extension 

 through the hind wing. The marginal fringe is generous, but of the ground 

 color. 



Upper side of hind wing is same in color as fore wing, but the grayish hairs 

 and scales quite cover the entire surface. A dark band runs from centre of 

 costa across the wing to inner margin, just above the anal angle, following con- 

 tour of the hind margin. Nearer the base, and barely crossing the centre of 

 discoidal space, is a similar band. These two bands, as above noted, are con- 

 tinuations of the dark markings or bands of fore wing. 



Under side of fore wing dark brown. The large white spots are more contigu- 

 ous, more as a band. The two subcostal dots are repeated. The lower angle 

 area is lighter than ground color, a branch of it extending upwards through the 

 apical area to the costa. 



These markings are not prominent and are softened by suffusion. 



Under side of hind wing dark brown, the dark bands of upper surface being 

 repeated but showing more suffusion. Inner marginal area lighter than ground 

 color. 



Taken in January, 1900. 



1 Canadian Entomologist, Vol. XXXVIII, No. 5, p. 174, May, 1906. 



