12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Lethata herbacea (Meyrick), new combination 



Plate 1 (fig. 6); Figures 9, 10; Map 7 

 Stenoma herbacea Meyrick, 1931, Exotic Microlepidoptera, vol. 4, p. 38. 



Alar expanse 25 mm. 



Antenna bro\\Ti. Head broMTiish fading to white on face; labial 

 palpus broken. Legs broken. Thorax and tegiila pale green. Fore- 

 wing pale green with scattered fuscous scales; costal edge yellow ochre- 

 ous, dorsal edge white at base, bro^^^l beyond; an oblique bro^^Tl line 

 from dorsum at basal angle extendmg half across wing; spot at end of 

 cell composed of ring of dark green enclosing spot of pmkish green with 

 dull greenish spot at its center, a faint bro\Miish oblique line from 

 lower extremity to near dorsum; an outwardly curved transverse 

 line from costa at apical third to dorsum before tornus, upper half 

 dark green, lower brown; a dark green termmal Ime; cilia light green 

 basally, grayish beyond. Hmdwing pale grayish ; cilia yellow ochreous 

 basally, whitish beyond. 



Male genitalia (slide WDD 3339, type) : Uncus short, slightly re- 

 curved; gnathos short, dorsoventrally flattened; harpe broad at base 

 tapering to bluntly rounded apex; anellar lobes symmetrical, some- 

 what broader at base narrowmg to elongate finger-like apex ; aedeagus 

 with a small, posteriorly directed spme at apex, vesica armed with 

 numerous heavy cornuti. 



Female genitalia : Unkno\\Ti. 



Type: In the Naturhistorisches Museum, Vienna, Austria. 



Type-locality: Ypiranga, Sao Paulo, Brazil. 



Distribution : Known only from the type-locality. 



This species is easily recognized by the shape and armature of the 

 aedeagus in the male genitalia. 



Lethata myopina (Zeller), new combination 



Plate 2 (fig. 1); Figures 11, 12 

 Cryptolechia myopina Zeller, 1877, Horae Soc. Ent. Rossicae, vol. 13, p. 271. 



Alar expanse 24 mm. 



Antenna broken. Head rosy white; labial palpus broken. Legs 

 whitish, fore- and midlegs shaded with brown. Thorax and tegula 

 yellow. Forewing yellow; costal edge faintly shaded with rose; 

 dorsal edge rosy ochreous from basal angle to apical three-fourths; 

 spot at end of cell composed of ring of rosy ochreous enclosing white 

 spot; cilia yellow at base, white beyond. Hindwing whitish; cilia 

 whitish at anal angle, ochreous at wing apex. 



Male genitalia (slide WDD 3574, type): Uncus short, slightly 

 recurved, pointed at apex; gnathos short, broad; harpe broad to 

 midpoint, narro^^iug to blunt apex; anellar lobes sjinmetrical, broad 



