14 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Lethata angusta, new species 



Plate 2 (fig. 3); Figures 15, 16; Map 9 



Alar expanse 28 mm. 



Antenna missing. Head whitish, labial palpus missing. Legs 

 whitish shaded with brown. Thorax and tegula browTi. Forewing 

 ochreous overcast with brown; costa narrowly brick red; a faint 

 brownish spot on costa at midpoint; spot at end of cell consisting of 

 irregular patch of purplish scales; terminal line brown; cilia brown 

 basally, lighter beyond. Hind wing whitish overcast with gray; 

 cilia whitish, irregularly brow^nish basally. 



Male genitalia (slide WDD 3606, type): Uncus sharply recurved ; 

 gnathos as in dispersa; harpe as in dispersa; anellar lobes symmetrical, 

 similar to those in dispersa except slimmer and not as heavily sclero- 

 tized and recurved at apex; aedeagus as in dispersa except apical 

 process narrower and laterally directed spine much smaller. 



Female genitalia: Unknow^n. 



Type: In the collection of the British Museum (Natural History). 



Type-locality: Castro, Parand, southern Brazil. 



Distribution: Known only from the type-locality. 



Described from the male holotype: "Castro, Parand, S. Brazil, 

 1898 (Jones), Walsingham Collection, B. M. 1910-427." 



This species is very close to L. dispersa and the distinguishing 

 characteristics have been discussed in the remarks concerning that 

 species. 



Lethata fernandesyepezi, new species 



Plate 2 (fig. 4); Figures 17, 18; Map 6 



Alar expanse 27 mm. 



Antenna browTiish. Head w^hitish shaded with rose; second seg- 

 ment of labial palpus browTi on outer side, whitish on inner side, apical 

 segment w^hitish. Legs whitish, forelegs heavily shaded with brown. 

 Thorax and tegula reddish brown anteriorly, gray scales with white 

 tips posteriorly. Foremng yellow shaded with brown, costal edge 

 deep ochreous underlined with reddish brown; dorsum reddish brown; 

 a reddish-brown area extending from anal angle to basal third; spot 

 in fold at basal third fuscous; spot at end of cell indistinct, consisting 

 of irregular ring of reddish-brown scales enclosing w^hite spot; an 

 outwardly curving transverse line of reddish-brown spots from 

 costa to dorsum ; cilia rosy gray. Hindwing gray in anal area, yellow^ 

 at apex; cilia yellow shaded with gray at anal angle. 



ALale genitalia (slide WDD 3625, type): Uncus short, recurved; 

 gnathos long with finger-like projection at apex; harpe \vith soft, 

 fleshy area on sacculus; anellar lobes symmetrical, only slightly 



