94 ILLUSTRATIONS OF UNFIGURED LEPIDOPTERA. 



Achlyodes guilfordi A. G. Weeks, Jr.* 

 {Plate XLI, Figure i.) 

 Habitat: Coroico, Bolivia. Expanse: 1.40 inches. 



Head, thorax, abdomen, legs and antennae, above, dark blackish brown ; 

 below, somewhat lighter. 



Upper side of fore wing a rich dark brown, with markings of slate color of 

 little prominence. Basal area slate color. From the costa, one-third dis- 

 tance from base to apex, and extending downward to inner margin, is a broad 

 band of slate color. At its lower half this band broadens and suffuses into 

 ground color. A second similar band starts at costa, midway between the first 

 band and the apex, and extends downward across outer edge of discoidal space, 

 terminating there. Its inner lower edge joins the suffused portion of the first 

 band. There is another similar band crossing apical area ; and below it is a 

 line of interspacial spots of same color, extending downward to submedian 

 nervure. These slate-colored markings are not well defined or prominent, but 

 seem rather to form a delicate change in the ground color. 



Upper side of hind wing of same ground color as fore wing. The immedi- 

 ate basal area is of the slate color. From the centre of the costa, running 

 downward into discoidal space, is a narrow indistinct band of slate color. The 

 area at upper angle shows lighter brown than ground color. Marginal fringe 

 of ground color. 



Under side of fore wing dark brown, with a purplish lustre. Inner marginal 

 area very light brown. The two outer bands of upper side may be traced on 

 very close inspection, but are too indistinct to be considered. 



Under side of hind wing dark brown, with a purplish lustre similar to fore 

 wing. The inner marginal and anal angle areas are light brown. One-eighth 

 inch within hind margin, and following its contour, is a series of indistinct 

 interspacial blotches of light brown, extending from costa to inner margin. 

 One-sixteenth inch within this is a band of light brown having a tinge of the 

 slate color, ru.ining from subcostal nervure to submedian nervure, parallel to 

 hind margin. These markings are very indistinct, and scarcely show above 

 the ground color. 



Taken in April, 1899. A specimen was found in the Hewitson 

 collection, but without name, and I can find no record of its having 

 been described. 



1 Pr. New England Zool. Club, Vol. II, p. io6, December 30, 1901. 



