536 PROCEEDINGS OF THE NATIONAL MUSEUM vol. im 



Female. — Coloration similar to that of cf. Labial palpi rather 

 long, porrect, closely appressed, densely clothed with large scales. 

 Eyes somewhat smaller than those of cf but otherwise similar. Anten- 

 nae simple, slender, completely covered by scales. Forewings more 

 elongate and slender than in cf, with apices subacute. Wing expanse: 

 19 mm. 



Male genitalia. — Vinculum typical, as in other species. 



Tegumen glabrous; lateral arm broad, narrowing at point of artic- 

 ulation with vinculum; dorsal area very broad, not separated along 

 meson. 



Harpe simple. Lateral aspect: sublinear, quite slender, with ven- 

 tral expansion near center, capitate; costa and sacculus fused, glabrous 

 except for punctate and setose ventrocaudal margin of sacculus, 

 apical area expanded ventrad, dorsal margin with small expansion 

 distad of base of arm of transtilla, narrowing considerably to base; 

 cucullus fairly distinct from costa and sacculus, comprising somewhat 

 less than apical half of harpe, heavily punctate and setose ectad and 

 entad, basal third narrow, apical two-thirds considerably expanded 

 ventrad, broadest portion near apex almost twice width of basal area, 

 dorsal margin curving slightly dorsad toward apex, apex broadly and 

 rather irregularly rounded. 



Transtilla with arm elongate, slender, glabrous, apical third curving 

 ventrad to overlap costa, terminating subacutely near base of harpe. 



Uncus simple, almost identical with that of bicornutus; base sub- 

 triangular, fused with tegumen, heavily punctate, lateral margins 

 sublinear and converging distad into base of uncal process; uncal 

 process of medium length, tubular, sparsely punctate and setose, 

 curving slightly ventrad toward apex, apex minutely and acutely bifid. 



Gnathos fused, same as that of bicornutus; in form of moderately 

 sclerotized flap directed ventrocaudad, lateral margins weakly sin- 

 uate and converging distad to form broadly rounded apex, ental sur- 

 face of apex finely pitted. 



Anellus membranous, unarmed, juxta absent. 



Aedeagus of medium length, slender, glabrous, asymmetrical, 

 approximately linear in dorsal and ventral aspects, basal and apical 

 portions curving slightly ventrad in lateral aspect, base moderately 

 expanded, basal two-thirds cylindrical, apical third opening dorsad; 

 apex produced into small, acute, minutely dentate process. 



Vesica small, membranous, unarmed. 



Type. — Holotype cf (type no. 61434) in the U.S. National Museum. 



Paratypes (5 cf cf, 1 9). — American Museum of Natural History 

 (Icf, 1 9), California Academy of Sciences (1 cf), Cornell University 

 (1 cf ), U.S. National Museum (1 cf). University of Kansas (1 cf ). 



