392 PROCEEDINGS OF THE NATIONAL JIUSEUM VOL.86 



responding to the black shade outwardly borderino; the white an- 

 temedial line in the North American species of Ozamia) ; subterminal 

 line whitish, dentate, bordered inwardly and outwardly by black; a 

 short, dentate, black line from vein 8 to vein 2, midway between the 

 end of cell and the subterminal line and parallel with the latter; a 

 black curved mark at end of cell ; a row of black dots along termen 

 at or near the vein ends; a faint wliitish color dusted with black in 

 apical area. Hind wing white, seniihyaline, with a fuscous shade 

 at apex and for a short distance along termen; cilia whitish with a 

 very faint fuscous subbasal line. 



Alar expanse, 26 mm. 



Genitalia (figs. 62-62a) with signum a small buttonlike thorn; 

 bursa copulatrix wrinkled and finely scobinate; ductus bursae long, 

 coarsely scobinate toward bursa. 



Type. — In United States National Museum. 



Type locality. — Catamarca, Argentina. 



Food plant. — Cereus validiis Haworth. 



Remarks. — This species is known only from the female type reared 

 March 7, 1921, by W. B. Alexander from a larva that had excavated 

 a hollow in a stem of Cereus validus. 



O. stigmaferelJa and the two following species {hemilutella and 

 pimicans) are the South American representatives of the genus and 

 differ from the North American and "West Indian forms in having 

 the ductus bursae of the female coarsely scobinate and the bui"sa 

 copulatrix decidedly wrinkled. 



6. OZAMIA HEMILUTELLA Dyar 



Plates 33, 41; Figures 35-35(1, 65-65a 



Ozamia hemilutella Dyae, Insecutor Inscitiae Menstruus, vol. 10, p. 17, 1922. 



Male. — Palpi, head, and thorax brownish fuscous, finely and evenly 

 sprinkled with white, making the general color (to the naked eye) 

 pale gray; collar of thorax with a slight yellowish tint. Fore wing 

 with area between lower vein of cell, vein 2, and inner margin pale 

 yellow without any markings; remainder of wing pale gray, concolor- 

 ous with head and thorax; antemedial line obsolete: from costa just 

 before middle to middle of lower vein of cell, a rather broad, trans- 

 verse, brownish shade; a brown discal dot at end of cell and some 

 brown shading just beyond; subterminal line faint, weakly dentate, 

 parallel with termen, bordered inwardly and outwardly by thin 

 faintly brownish lines; a row of minute black dots along termen at 

 the vein ends ; cilia pale gray. Hind wing white, semihyaline with a 

 thin fuscous line along termen and some fuscous shading bordering 

 the costa. Abdomen with one pair of strong tufts. 



Alar expanse, 29 mm. 



