52 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 117 



by fuscous shading; surface of forewing irregularly marked with fuscous 

 and white streaks; around termen a series of slender fuscous dashes 

 along veins; cilia pale buffy brown mixed with fuscous and white 

 scales. Hindwing pale yellowish gray shaded with fuscous along 

 outer margin; cilia pale grayish with whitish median, and grayish- 

 fuscous basal Hues. Legs white overlaid and shaded with buffy 

 brown and pale brown. Abdomen pale pearly gray with fuscous 

 shading laterally and slight fuscous irroration ventrally. 



Male genitalia (slide 10640): The vesica is armed with three long 

 slightly curved cornuti at the base of which is a cluster of small fine 

 ones. 



Female genitalia (slide 10674) : The female genitalia are somewhat 

 atypical, the signum consisting of a very slender sclerotized ridge 

 with some sclerotization around it, rather than a scobinate patch or 

 a few spines. Ductus bursae sclerotized in posterior third, flattened 

 and broad at ostium. 



Type: Masafuera: La Correspondencia, 1150 m. 



Described from the male type, 11 male and one female paratypes 

 all from the type locahty. (Jan. 18, 1955 to Feb. 15, 1955.) 



The female of this species, although marked similarly, is strikingly 

 different from the males in general appearance. It is not only smaller 

 than the males but the wings are much narrower with the costal and 

 dorsal margins nearly parallel. The apices of both fore- and hind- 

 wings are produced and acutely pointed and the terminal margins 

 are concave. This sort of dimorphism is not uncommon in insular 

 areas but this is the only example I know from these islands. 



Scoparia dela, new species 



Figure 45 



Alar expanse 22 mm. 



Labial palpus sordid white; second segment strongly overlaid with 

 fuscous on outer side and with pale brownish on lower half of inner 

 surface; third segment ground color almost wholly obscured by pale 

 brownish suffusion. Head white mixed with pale brownish scales; 

 antenna with scape whitish, remainder pale brown with whitish scales 

 at ends of segments. Thorax and ground color of forewing sordid 

 white; tegula with fuscous base and with pale yellowish scales mixed 

 with the white ground posteriorly; extreme edge of costa, from base 

 to two-fifths, blackish fuscous; from base of costa to fold an out- 

 wardly oblique blackish-fuscous bar; from basal two-fifths of costa an 

 outwardly oblique, transverse, blackish-fuscous line extends to 

 dorsum; from this line two spurs of similar color extend into cell and 



