354 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 86 



1. NANAIA SUBSTITUTA, new species 



Plates 25, 42, 47; Figures &-8d, 7^72a, 97-97a 



Male. — General color (except hind wings) ocherous-fuscous pep- 

 pered with black and white ; the type darker than most of the para- 

 types. Fore wing with pale color confined to costal half of wing; 

 terminal area and the area between cell and imior margin darker, 

 with very little white dusting; in most specimens a rather pronounced, 

 broad, longitudinal, ocherous-fuscous shade in the fold; transverse 

 and discal markings almost obsolete; in a few specimens the ante- 

 medial line faintly indicated and in the palest of the paratypes the 

 discal black dots distinguishable, also some black scaling along the 

 veins. Hind wing white with a smoky tint toward apex and termen ; 

 terminal margin blackish fuscous; cilia smoky white with a dark 

 subbasal line. 



Alar expanse, 37-39 mm. 



Genitalia (figs. 8-8c) figured from type. 



Female. — Colored like the male except that the hind wing is 

 darker, whitish ocherous rather than white. 



Alar expanse, 38-40 mm. 



Genitalia (figs. 72-72a) with no appreciable scobinations or gi*an- 

 ulations in bursa; ductus bursae minutely scobinate at genital open- 

 ing, otherwise smooth. 



Type and paratypes. — U. S. N. M. no. 52748. Paratypes also sent 

 to Mr. Dodd. 



Type locality. — Cuzco, Peru. 



Food plant. — Opuntm {Cylindropuntia) exaltata Berger. 



Remarks. — Described from male type and 5 male and 6 female 

 paratypes, all from the typo locality and reared by Dr. J. E. Wille 

 from larvae feeding in the trunks of Opnntia exaltata ("Em. XII- 

 6-8-36, 1-5-19, 37," Wille no. 336-36). I also have before me two 

 specimens (male and female) that may be a variety of snhstituta but 

 that are probably a distinct species. They were reared by Dr. Wille 

 from larvae feeding in trunks of Trichocereiis at Cocachacra, Peru 

 («Em. Xn-12-36 and XIT-19-36," Wille no. 333-36) . Unfortunately 

 these specimens lack abdomens and are otherwise in such poor con- 

 dition that it is impossible to determine them any further than to 

 the genus. 



6. Genus CACTOBLASTIS Ragonot 



Oactotlastis Ragonot, M^moires sur les L^pidopt^res, vol. 8, p. 15, 1901. — 

 Dyab, Proc. Ent. Soc. Washington, vol. 30, p. 135, 1928. (Genotype: 

 Zophodia cactorum Berg.) 



Neopyralis Br^thes, Chacaras e Quinaes, vol. 20, no. 1, p. 18, 1920. (Genotype: 

 NeopyraUs ronnai BrSthes.) (New sjnionymy.) 



