378 PROCEEDINGS OF THE NATIONAL MUSEUM vol.86 



Iwith basal area (to antemedial line), and all the area between ante- 

 medial and subterminal transverse dark shade and the fold and costa, 

 ;white; area between fold and inner margin luteous; outer area (be- 

 yond subterminal dark shade) ashy white, shading to luteous at 

 tornus; transverse antemedial line well contrasted against ground 

 color, thin, black, irrorate, forming a sharp angle at the fold, the 

 apex of the angle extending almost to the middle of the fold; sub- 

 terminal line obsolete, replaced by a dark, transverse shade below end 

 of cell and some scattered blackish dusting toward apex; veins 2 to 

 10 and upper and lower veins of cell more or less outlined in black, 

 the lines very faint on all the veins except vein 4; along termen, 

 between the vein ends, a row of very famt blackish dots; no discal 

 marks at end of cell. Hind wing shiny white, semihyaline, with a 

 faint pale- fuscous shading along costa, on veins 6, 7, and 8, and at 

 extreme apex. 



Alar expanse, 34 mm. 



Genitalia (figs. 24-24c) with lateral margins of anellus smooth; 

 vinculum with terminal margin straight, rather broad, lateral margins 

 excavate. 



Female. — Unknown. 



Type. — In United States National Museum. 



Type locality. — San Diego, Calif. (July). 



Food plant. — Unknown. 



Remarks. — Known only from the unique male type. It is a strik- 

 ing species and should be easily recognized from the description and 

 genitalic figures. 



S. EREMBERGA INSIGNIS, new species 



Plate 29 ; Fiqukes 2a-23c 



Male. — Palpi, face, head, thorax, and fore wing dark grayish 

 fuscous. Fore wing very faintly dusted with white on costal half; 

 lower half of wing faintly shaded with dull luteous-ocherous ; ante- 

 medial and subterminal lines as in leuconips^ except antemedial not 

 obliterated toward costa ; veins 2 to 9 very faintly outlined in black, 

 the black lining most distinct on lower vein of cell; a conspicuous 

 black spot at end of cell ; along termen, between the vein ends, a row 

 of rather conspicuous black dots. Hind wing shiny white, semi- 

 hyaline, with a fuscous shade bordering costa and a pale fuscous lino 

 on termen for a short distance from apex. 



Alar expanse, 35 nun. 



Genitalia (figs. 23-23c) with lateral margins of anellus smooth; 

 vinculum with terminal margin straight and narrow, lateral margins 

 outwardly angled. 



Femxile. — Unknown. 



