NO. 2050. LEPIDOPTERA OF THE PANAMA CANAL ZONE—DYAR. 317 



PTOCHOSTOLA INCANELLUS Zeller. 



10. Tabogilla Island, February, 1912 (Busck) ; Corozal, Canal Zone 

 April and May, 1912 (Busck); Cabima, May, 1911 (Busck); La 

 Chorrera, May, 1912 (Busck); Trinidad River, May, 1911 and June, 

 1912 (Busck); Taboga Island, June, 1911 (Busck). 



PTOCHOSTOLA PYGMAEUS Zeller. 



129. Paraiso, Canal Zone, February, May, and June, 1911 (Busck); 

 Corozal, Canal Zone, March and May, 1911, May, 1912 (Busck) and 

 July, 1912 (J. Zetek); Trinidad River, March, 1912, May, 1911 and 

 June, 1912 (Busck); Alhajuelo, April, 1911 (Busck); Porto Bello, 

 February, March, April, and May, 1911 (Busck); Cabima, May, 1911 

 (Busck); La Chorrera, May, 1912 (Busck); Taboga Island, June, 1911 

 (Busck). 



ARGYRIA NIVALIS Drury. 



6. Corozal, Canal Zone, March, 1911 (Busck) and August, 1912 

 (C. P. Crafts); Cabima, May, 1911 (Busck). 



The fringe is entirely dark leaden, not white-tipped as in the north- 

 ern form. It may be named fimbrialis, new subspecies. 



Type.— No. 16321, U.S.N.M. 



ARGYRIA TENELLA ZeUer. 



1. Trinidad River, March, 1912 (Busck). 



ARGYRIA OPPOSITA Zeller. 



19. Porto Bello, April and May, 1912 (Busck); Cabima, May, 1911 

 (Busck); Corozal, Canal Zone, May (Busck), July (J. Zetek) and 

 November, 1912 (C. P. Crafts); Trinidad River, June, 1912 (Busck). 



ARGYRLA PUSILLALIS Hubner. 



26. Porto Bello, February and March, 1911 (Busck); Trmidad 

 River, March, 1912 (Busck); Tabernilla, Canal Zone, May, 1907 

 (Busck); Corozal, Canal Zone, March, 1911 (Busck), July, August, 

 and November, 1912 (C. P. Crafts). 



All the specimens have the median band continuous across the 

 wing. The varietal name multifacta is proposed. 



TyjJe.—No. 16316, U.S.N.M. (Porto Bello, February, 1911). 



ARGYRIA MOLYBDOPLECTA, new species. 



Dark gray, the inner area of fore wing broadly shaded with duU 

 j^eilow nearly up to median vein. Hind wing whitish, shading to 

 fuscous at margin. In the males the wing is more blunt at apex 

 than in the females, the markings more distinct and contrasted. 

 Lines slender, black, edged with wliite very narrowly; inner line 

 crenulate, with inward angle at vein 1 ; outer line with a sinus below 

 vein 2 which joins the large reniform, making it part of the sinus; a 

 row of terminal dark dots. In the female the Unes are slender and 

 pulverulent, the sinus of outer hue appears occluded. Expanse, 14-24 

 mm. 



