8O ILLUSTRATIONS OF UNFIGURED LEPIDOPTERA. 



Upper side of fore wing very dark brown, with slight lustre. Hind marginal 

 fringe of ground color, but lighter opposite interspaces. There is a dark dash 

 running from centre of submedian nervure toward apex, ending at median 

 nervure. 



Upper side of hind wing very dark brown without markings. Hind mar- 

 ginal fringe the same as on fore wing. 



Under side of fore wing very dark brown, with slight lustre. Area at lower 

 angle somewhat lighter. There are two small white dots in subcostal inter- 

 spaces near apex, which do not appear on upper surface. Hind margin bor- 

 dered by a thread lighter than ground color. Marginal fringe the same as on 

 upper surface. 



Under side of hind wing very dark brown. Hind marginal fringe the same 

 as on fore wing. Hind margin bordered by a thread lighter than ground color. 

 There is a black thread starting at centre of lower submedian nervule and run- 

 ning toward upper angle, ending at first subcostal nervule. In interspace 

 above, and one-sixteenth inch nearer base, is another black thread running to 

 costa. In the basal area is a short black thread crossing basal portion of dis- 

 coidal space. The hind marginal area, covering outer third of wing, is crossed 

 at its centre by an indistinct line of light scales. The basal area also is slightly 

 dusted with similar scales. Inner marginal area is of ground color. 



Taken near Coroico in May, 1899. 



Pamphila planus A. G. Weeks, Jr. 1 



(Plate XXXI, Figure i.) 

 Habitat: Bolivia. Expanse: 1.25 inches. 



Head, thorax, abdomen and legs, brownish black above ; beneath, somewhat 

 lighter. Antennae black, with a suggestion of a yellow band at base of club. 



The upper surface of both wings is a rich blackish brown, without lustre, mark- 

 ings, or shadings. Marginal fringe and all marginal areas the same. 



Under side of fore wing the same ground color as upper surface. Inner mar- 

 ginal area light brown, especially at lower angle. 



Under side of hind wing the same, but somewhat darker and showing in some 

 lights a very slight purplish lustre. Inner marginal area lighter brown. 



Taken near Cusilluni in May, 1899. 



l Pr. New England Zool. Club, Vol. II, p. 95, December 23, 1901. 



