NO. 3585 MICROLEPIDOPTERA, XII — DUCKWORTH 19 



whitish. Thorax and tegula reddish brown. Forewing grayish 

 overcast with reddish brown especially in anal area; costa narrowly 

 ochreous; termen ochreous; spot at end of cell purplish with scattered 

 white scales; entire wing with scattered fuscous scales; cilia white 

 basally, gray beyond. Hindwing whitish overcast with gray; cilia 

 white basally, gray beyond. 



Male genitaUa (slide WDD 3614, type): Uncus short, recurved; 

 gnathos short, dorsally flattened; hai^pe short, somewhat excavated in 

 saccular area, rounded at apex; anellar lobes symmetrical, median 

 edge approximately straight to apex, lateral edge sinuate and tapering 

 to acute apex, bladelike; aedeagus with one lateral spine near apex, 

 vesica armed with three cornuti, one large, one medium, one small. 



Female genitalia: Unknown. 



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



Type-locality: Huancabamba, Cerro de Pasco, 6000-10,000 ft., 

 Peru. 



Distribution: Known only from the type locality. 



Described from the male holotype: "Huancabamba, Cerro de 

 Pasco, 6-10,000 ft., (Bottger)." 



The shape of the anellar lobes and shape and armature of the 

 aedeagus in the male genitalia distinguishes this species from all 

 others. 



Lethata atnazotui, new species 



Plate 3 (fig. 5); Figure 36; Map 9 



Alar expanse 38 mm. 



Antenna brownish. Head white; labial palpus white shaded with 

 brown on outer side. Legs whitish, forelegs heavily shaded with 

 brown. Thorax and tegula white. Forewing rosy tan with costa 

 narrowly deep ochreous; dorsal edge brown; from middle of base a 

 white suffusion blends outward and upward with ground color; 

 spot at end of cell composed of ring of white enclosing brown trans- 

 verse line; spot in fold at basal one-third composed of ring of white 

 enclosing brown spot; median spot at basal one-third white with faint 

 brown scaling in center; entire wing sprinkled with occasional brown 

 scales; cilia brov/n. Hindwing yellow ochreous deepening toward 

 apex; cilia whitish in anal area, brownish at apex. 



Male genitalia: Unknown. 



Female genitalia (slide WDD 3601, type): Ductus bursae mem- 

 branous; ostium bursae membranous; ostium broad; inception of 

 ductus seminalis very near ostium bursae; lobes of ovipositor heavily 

 sclerotized, intersegmental membrane between ovipositor lobes and 

 eighth segment sclerotized holding lobes in close association with 

 eighth segment. 



