20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



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

 . Type-locality: Santo Antonio do Javary, Upper Amazon, Brazil. 



Distribution: Known only from the type-locality. 



Described from the female holotype: "Santo Antonio do Javary, 

 Upper Amazon, June 07 (S. M. Klages), Rothschild Bequest, B. M. 

 1939-1." 



This species is one of the largest and most striking of the entire 

 genus. It is indeed unfortunate that it is known only from the 

 holotype. 



The heavily sclerotized ovipositor lobes and sclerotized interseg- 

 mental membrane between the ovipositor lobes and eighth segment 

 readily spearate L. amazona from all other females in this genus. 



Lethata sciophthalnia (Meyrick), new combination 



Plate 3 (fig. 6); Figure 35; Map 5 

 Stenoma sciophthalma Meyrick, 1931, Exotic Microlepidoptera, vol. 4, p. 34. 



Alar expanse 22 mm. 



Antenna brown. Head rosy gray; labial palpus pale grayish pink. 

 Legs whitish, fore- and midlegs overcast with brown. Thorax and 

 tegula rosy gray. Forewing rosy ochreous, costal edge pink; spot at 

 end of cell purple suffused with whitish scales in center; cilia rosy 

 white, darker at apex. Hindwing ochreous, overcast with gray; 

 cilia rosy white. 



Male genitaha: Unknown. 



Female genitalia (slide WDD 3342, type) : Ductus bursae membra- 

 nous, emerging laterally from ostium bursae ; ostium bursae sclerotized 

 v^^th a large lateral indentation; ostium broad; inception of ductus 

 seminalis near ostium. 



Type: In the Naturhistorisches Museum, Vienna, Austria. 



Type-locality: Rio Preto, zw. Boquerao u. Sta. Rita, Brazil. 

 , Distribution: Known only from the type-locality. 



The large lateral indentation in the ostium bursae serves to separate 

 this species from the others included in the genus Lethata. 



Checklist of Lethata 



1. trochalosticta (Walsiugham) 8. invigilans (Meyrick) 



2. aromalica (Meyrick) 9. leucothea (Busch) 



3. aslhenopa (Meyrick) 10. anophihahna (Meyrick) 



4. bovinella (Busck) badiella Amsel 



curiata Meyrick maculala Duckworth 



indistincta Amsel 11. pyrenodes (Meyrick) 



5. buscki Duckworth 12. rubn Duckworth 



6. fusca Duckworth 13. satyr opa (Meyrick) 



7. glaucopa (Meyrick) 14. gypsolitha (Meyrick) 



