318 PROCEEDIXGS OF THE XATTOXAL MUSEUM. vol.47. 



Cotypes. — Male and female, No. 16315, U.S.N.M.; Corozal, Canal 

 Zone, July and November, 1912 (C. P. Crafts). Also 52 others with 

 additional data, Cabima, May, 1911 (Busck); Corozal, Canal Zone, 

 April and May, 1911 (Busck), and July, 1912 (J. Zetek); Porto Bello, 

 Februar}^, 1911 (Busck); Truiidad River, May, 1911 (Busck). 



ARGYRIA ARGYRODIS, new species. 



!MarIdngs as in A. croceivitella Walker, but without any yellow 

 along the inner margin of fore wing; silvery white; vertex of head 

 and dorsal stripe on thorax golden yellow; fore wing with erect 

 median band, costal stripe and subapical patch, with obHque spur 

 3-ellow, stained Avith bro^\^l; termen and fringe of same color. Ex- 

 panse, 14 mm. 



Type.— Female, No. 16317, U.S.N.M.; La Chorrera, May, 1912 

 (Busck). Also six othei-s from the same place. 



ARGYRIA CENTRIFUGENS, new species. 



Wliite; front wliite, vertex dark ocher; fore \%'ing silvery white; a 

 dark brown spot on costa and one on inner margin joined by a slender 

 Une; costal triangle divided by a white line; a dark termuial line, the 

 fringe leaden brown. EQnd wing white. Expanse, 14 mm. 



Type.— No. 16318, U.S.N.M.; Paraiso, Canal Zone, February, 1911 

 (Busck). Also two others, Cabima, May, 1911 (Busck). 



ARGYRIA XANTHOGUMA, new species. 



Palpi white-tipped; front wliite; fore wing with median line slender, 

 forming costal and marginal dots; costal triangle cut by a wMte line; 

 terminal line narrow, the fringe dark leaden. Hind wing pale yellow 

 tinted. Expanse, 14 mm. 



Type.—lMe, No. 16319, U.S.N.M.; La ChoiTera, May, 1912 

 (Busck). Also tliree others from the same place. 



UBIDA THYONELLA Schaus. 



Platytes thy nella Schaus, Ann. Mag. Nat. Hist. (8), vol. 11, 1913, p. 239. 



1. Chiriqui, May, 1907 (W. Schaus). 



The specimen is smaller than the type and in better condition. I 

 thuik it is conspecific. 



UBIDA CRETACEIPARS, new species. 



Chalky white, the margin dull ocher; vems lined with dark brown, 

 an oblique line from near middle of inner margin curving around 

 ceU to costa, with a broad shade from its loop to apex, cut by black 

 veins; discal dot roimd, black; a terminal row of black dots. Hind 

 wing white, immarked. Expanse, 15 mm. 



Typ^.— Female, No. 16329, U.S.N.M.; La Chorrera, May, 1912 

 (Busck). Also another female from the same place. 



UBIDA MONODISA, new species. 



Chalky white, the veins narrowly dark brown, the interspaces 

 largely filled with, dull ocher rays, broadest in the cell and in a broad 

 shade beyond; a white ray dividing the cell to the round black discal 



