MICROLEPIDOPTERA OF JUAN FERNANDEZ ISLANDS — CLARKE 71 



of the male between your specimen and one of Meyrick's syntypes, 

 but I attribute this to variation within the species. This species may 

 be a synonym of sematodactyla Berg. . . . There is no authentic ma- 

 terial in the B. M. for comparison but B. Fletcher had determined 

 several specimens (without abdomens) from Argentina which appear 

 superficially identical with your specimens." 



Apparently epidelta is widespread, and perhaps carried in com- 

 merce, but only extensive collecting will determine the limits of 

 distribution. 



Family Tortricidae 

 Genus Proeulia Clarke 



Proeulia Clarke, 1962, Proc. Biol. Soc. Washington, vol. 75, p. 293. 



The species of Proeulia are separated by the following key: 

 Alar expanse 24-28 mm. ; vesica with several long and one short, straight cornuti ; 



signum with one small conical thorn robinsoni Aurivillius 



Alar expanse 15-20 mm.; vesica armed with two or more long, slightly curved 



cornuti and one short, strongly curved cornutus; signum with long, projecting 



spine griseiceps Aurivillius 



Proeulia robinsoni (Aurivillius) 



Figures 66-69 



Eulia robinsoni Aurivillius, 1922, in Skottsberg, The natural history of Juan 

 Fernandez and Easter Island, vol. 3, pt. 2, p. 266, pi. 11, fig. 17. 



Proeulia robinsoni (Aurivillius), Clarke, 1962, Proc. Biol. Soc. Washington, vol. 75, 

 p. 294. 



Type: Naturhistoriska Riksmuseum, Stockholm. 



Type locality : "Masatierra." 



Distribution: Masatierra: Bahia Cumberland 3 99 (Feb. 15, 

 1951); Plazoleta del Yunque 2 cfd', 3 99 (Jan. 2, 1952); 2 cTcT, 6 99 

 (Dec. 28, 1954). 



This is the largest of the tortricids represented in the collections 

 from the Juan Fernandez Islands and because of its large size is easily 

 distinguished from the other species. It resembles Butler's Dichelia 

 exusta but Mr. Bradley of the British Museum, who has compared a 

 specimen of robinsoni with Butler's type, states "Somewhat similar 

 to exusta Butler superficially, but in my opinion definitely not that 

 species and I am unable to identify it from the B. M. collection." 

 The type of Butler's species lacks the abdomen. The male and 

 female genitalia of robinsoni are figured from slides 10179 and 10180 

 respectively. The wing is figured from the male 10179. This 

 species appears to be confined to Masatierra. 



