132 PROC. ENT. SOC. WASH., VOL. 24, NO. 6, JUNE, 1922 



tipped with white. Abdomen silvery white with light buff shading at base 

 dorsally and on anal segment; legs white. Fore wings creamy white, the costa 

 medially and inner margin white; black irrorations forming a subbasal shade 

 from costa to vein 1; at middle of cell and extending below it a black patch of 

 scales inwardly oblique, its outer edge rounded followed by a streak of black 

 scales from subcostal to vein 2; fine oblique chrome streaks on costa medially, 

 postmedially and at outer line; outer line creamy white finely edged with black, 

 oblique to vein 6, then wavily curved and indentate on vein 2 preceded and 

 followed between veins 4 and 6 by black spots consisting of finely striated lines; 

 apex beyond line mars yellow containing a silvery streak above vein 7, and an 

 upright fine white line above it to costa; termen mars yellow except between 

 veins 3 and 4, and from vein 2 to tornus; cilia iridescent silvery white or 

 fuscous gray. Hind wings silvery white; a fine dark terminal line from vein 4 

 to vein 7. Wings below silvery white a fuscous shade through cell to near 

 termen on fore wing. 

 Expanse 15 mm. 



Habitat. Rio de Janeiro, Brazil; also from French Guiana. 

 Type Cat. No. 25534, U. S. N. M. 



Diptychophora herstanella, new species. 



Male. Head and thorax white. Abdomen whitish buff. Fore wings white; 

 costal edge finely tuscous; a small brown spot on costa near middle; a dark point 

 in middle of cell; some dark scales just beyond cell; a fine subterminal black 

 line outcurved from costa, followed by a short thick light orange yellow line 

 from costa to vein 7, outbent to termen on vein 7, and a shorter streak below 

 it; an interrupted terminal yellow line with black points below veins 4-2; cilia 

 white, basally fuscous towards apex. Hind wings white; a terminal fuscous line 

 from apex to vein 2. 



Expanse 9 mm. 



Habitat. Porto Bello, Panama. 

 Type Cat. No. 25535, U. S. N. M. 



Argyria quevedella, new species. 



Female. Head and palpi cinnamon. Collar and thorax silvery white. 

 Abdomen white at base, otherwise light buff with white segmental lines. Fore 

 wings silvery white; costal edge finely light brown; a small light orange yellow 

 spot on costa above end of cell; a similar short curved subterminal streak from 

 costa, followed by a shorter streak; cilia white with a very fine golden brown 

 line at base. Hind wings white. Wings below silvery white. 



Expanse 17 mm. 



Habitat. Quevedo, Ecuador. 

 Type Cat. No. 25536, U. S. N. M. 



Argyria tunuistrigella, new species. 



Male. Head and palpi white, the latter cinnamon below. Front of collar, 

 thorax and abdomen pale drab gray, the collar otherwise and patagia silvery 

 white. Fore wings silvery white; the costa narrowly light buff shaded with 



