610 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



Type.— No. 9905, U.S. National Museum. 



A pretty species, which can not be confounded with any other American 

 anaphorid, and is easily recognized by the pearly-black dusted fore wings. 



Male genitalia.- — Vinculum rather small; typical, as in other 

 species. 



Tegumen with lateral arm broad, glabrous, gradually narrowing to 

 point of articulation with vinculum, margins weakly sinuate; dorsal 

 area broad, glabrous, cephalic margin slightly concave, caudal margin 

 produced caudad to fill mesal emargination in base of uncus. 



Harpe simple. Lateral aspect: slender, broadest in area of costa 

 and sacculus giving rise to arm of transtilla. Costa and sacculus 

 fused, narrowing slightly toward base, comprising approximate basal 

 half of harpe, glabrous except for punctate and setose ventrocaudal 

 margin of sacculus. Cucullus indistinctly fused with costa and 

 sacculus, sublinear, directed somewhat ventrad, apical three-fourths 

 sparsely punctate and setose (especially along ventral margin), mar- 

 gins sublinear and gradually diverging toward apex, broadest portion 

 of apical area approximately twice width of narrowest portion of 

 basal area; apex with ventral portion produced caudoventrad, ventral 

 margin rather narrowly but evenly rounded, mesal margin broadly 

 and weakly emarginate, dorsal margin very broadly and evenly 

 rounded. 



Transtilla with arm well sclerotized, glabrous, approximately one- 

 fifth as long as harpe, widely separated from costal margin, terminating 

 considerably above base of harpe. 



Uncus very obscurely bifid. Dorsal aspect: base indistinctly 

 separated from tegumen by narrow area of reduced sclerotization, 

 cephalic margin broadly and deeply emarginate mesad, mesal area 

 glabrous; lateral areas heavily sclerotized, punctate and setose, con- 

 verging distad and fusing into bases of furcae; angle of bifurcation 

 extremely acute and obscure, located slightly basad of midpoint of 

 main uncal process; furcae of medium length, approximate, appearing 

 as single process (especially in untreated specimens), heavily sclero- 

 tized, directed caudad and slightly ventrad, lateral margins punctate 

 and setose, apices acute and approximate. 



Gnathos fused, rather broad, directed caudoventrad, dorsal portion 

 scobinate, lateral margins well sclerotized, converging slightly to 

 broadly and evenly rounded apex. 



Anellus membranous, unarmed, juxta absent. 



Aedeagus of medium length and width, approximately four-fifths 

 as long as harpe, cylindrical, asymmetrical, basal three-fourths sub- 

 linear in all aspects, apical fourth evenly curving ventrad, basal 

 fourth broadly expanded laterad and terminating in pair of sub- 

 digitate lateral processes; apical third opening broadly ventrad and 



