MICROLEPIDOPTERA OF JUAN FERNANDEZ ISLANDS — CLARKE 25 



average larger than those of the former. The genitalia leave no doubt 

 about the identities of the two and each is endemic on its own island. 

 One male labelled only "Masafuera" is in the collection of the 

 Naturhistoriska Riksmuseum, Stockholm. 



19 - 20 



^^' 19a 



Figures 19-20. — Fernandocr ambus kuscheli, new species: 19, ventral view of male genitalia 

 with left harpe and aedeagus removed; 19a, aedeagus; 19b, lateral outline of uncus and 

 gnathos; 20, ventral view of female genitalia. 



Genus Juania Aurivillius 



Juania Aurivillius, 1922, in Skottsberg, The natural history of Juan Fernandez 

 and Easter Island, vol. 3, pt. 2, p. 264. 



Type-species: Juania annulata Aurivillius, op. cit., p. 265, pi. 11, 

 fig. 15 [by monotypy]. 



Key to the Species of Juania 



1. Alar expanse 17 mm. or more 2 



Alar expanse 16 mm. or less 5 



2. Alar expanse less than 25 mm 3 



Alar expanse more than 25 mm magnifica, new species 



