MICROLEPIDOPTER A OF JUAN FERNANDEZ ISLANDS — CLARKE 3 1 



pepita belongs are similarly colored, for the most part, but pepita is 

 probably nearest to xerophylla. The two can be distinguished easily 

 by examination and comparison of the genitaUa. The membranous 

 area surrounding the ostium and the usually long lower Up of ostium 

 of pepita, contrasted with the strongly sclerotized genital plate and 

 much shorter lower lip of ostium of xerophylla, serve to separate the 

 two. 



Juania grisea, new species 

 FiQUBES 25-26 



Alar expanse 14-16 mm. 



Labial palpus sordid white; second segment overlaid with blackish 

 fuscous on outer side and also apically on inner side; third segment 

 almost wholly blackish fuscous. Head blackish fuscous, somewhat 

 iridescent; antenna slightly lighter than head, dull. Thorax blackish 

 fuscous; posterior edge of collar and tip of tegula with a few large, 

 sordid-white scales. Forewing ground color blackish fuscous; basal 

 area black; from costal third a black, irregular, outwardly oblique, 

 transverse line extends to middorsum, is preceded by a rather dense 

 sordid-white scaling and followed by a white-centered black spot at 

 end of cell; at apical fom*th a very irregular, black, transverse hne 

 extends to tornus and is both preceded and followed by sordid-white 

 scaUng, particularly in terminal area; on termen a series of three or 

 four small black dots; cilia fuscous with a few white scales mixed; 

 on underside a sometimes conspicuous black spot, preceded and fol- 

 lowed by light scaling from which arises a transverse fuscous band. 

 Hind wing grayish fuscous, paler basally; cilia Ughter than terminal 

 area but with a dark basal line; underside marked with an outer fuscous 

 band which is always preceded, and sometimes followed, by light 

 scaling. Legs grayish fuscous irrorate and narrowly banded with 

 sordid white. Abdomen grayish fuscous above, sordid white beneath. 



Male genitalia (sUdes 10707, 10246, 10693): Gnathos less than 

 twice the length of uncus. Costal process of harpe digitate, curved. 

 Cucullus triangular, pointed. Sacculus with ventral edge nearly 

 straight. Aedeagus armed with a long, strong hook. 



Female genitalia (slides 10660, 10247, 10248, 10694) : Ostium rather 

 large, periphery strongly sclerotized; lip of ostium stout, broad, 

 tapering slightly posteriorly, truncate. Ductus bursae membranous 

 except for short area before ostium and with strongly sclerotized, 

 small, conical evagination dorsally before ostium. Inception of 

 ductus seminalis at about posterior third. 



Type: Masafuera: Cord6n del Barril, 1200 m. (Feb. 17, 1955). 



Described from the female type, 10 female and 5 male paratypes 

 as follows: Masafuera: Cord6n del Barril, 1200 m., 3 99, cf (Feb. 17, 



