10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Described from male holotype: "Rio Jan., Felder Coll., Roths- 

 child 1913-86"; and one male para type: "Rio de Janeiro, Nov., 

 (H. H. Smith)." 



The size and shape of the anellar lobes and the shape and armatm-e 

 of the aedeagus in the male genitaha readily distinguish this species. 



Lethata oculosa, new species 



Plate 1 (fig. 3); Figure 38; Map 10 



Alar expanse 28 mm. 



Antenna brownish. Head brown shading to whitish between eyes; 

 second segment of labial palpus brown on outer side, whitish on inner 

 side, apical segment whitish. Legs whitish, fore- and midlegs lightly 

 shaded with brown. Thorax and tegula deep brown. Forewing 

 grayish brown with costal edge light ochreous; deep brown suffusion 

 from anal angle over basal third; spot at end of cell consisting of ring 

 of deep brown enclosing whitish scales with dot of deep brown in 

 center; an indistinct outwardly curving deep brown transverse line 

 from costa to dorsum at apical two- thirds; cilia brown at base, whitish 

 beyond. Hindwing gray; cilia gray. 



Male genitalia: Unknown. 



Female genitalia (slide WDD 3602, type) : Ductus bursae sclerotized 

 at junction with ostium bursae, membraneous beyond; ostium bursae 

 sclerotized, length and width approximately equal; ostium sHghtly 

 flaring at edge; inception of ductus seminalis near ostium bursae. 



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



Type-locaUty: Sao Paulo, Brazil. 



Distribution: Known only from the type-locality. 



Described from the female holotype: "Sao Paulo, S. E. Brazil, 

 1892-5, (E. D. Jones), 1912-534." 



The size and shape of the ostium bursae serves to distinguish L. 

 oculosa from the other knoAvn females in the genus. 



Lethata lanosa, new species 



Plate 1 (fig. 4); Figures 5, 6; Map 8 



Alar expanse 24 mm. 



Antenna brownish. Head brown with pink shading, face whitish, 

 second segment of labial palpus brown on outer side, pinkish white 

 on inner side, apical segment brown. Legs whitish, fore- and midlegs 

 shaded with fuscous. Thorax and tegula fuscous with postmedian 

 ridge of raised scales. Forewing brown with costal edge narrowly 

 deep ochreous; an indistinct fuscous hue obliquely from anal angle 

 to costa at midpoint; dorsal edge narrowly fuscous; spot at end of 

 cell consisting of fuscous ring enclosing brown spot; outwardly curved 



