526 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



portion with heavily sclerotized margins and rather weakly sclerotized 

 mesal area, approximate apical two-thirds to three-fourths gradually 

 expanding distad and curving strongly toward meson, broadest near 

 apex, apex markedly emarginate. 



Transtilla with arm glabrous, well sclerotized, approximately one- 

 fourth as long as harpe, sinuate, apical portion converging to margin 

 of costa, terminating subacutely somewhat caudad of basal extremity 

 of harpe. 



Uncus obscurely and wealdy bifid. Dorsal aspect: sub triangular, 

 distinctly set off from tegumen by irregular areas of reduced sclero- 

 tization, cephalic margin broadly and evenly emarginate mesad, 

 laterobasal areas finely but heavily punctate, apical portion finely 

 and sparsely punctate, lateral margins sublinear and evenly con- 

 verging caudad into furcae; angle of bifurcation obscured; furcae very 

 short, stout, approximate, well sclerotized, sparsely punctate, evenly 

 curving caudoventrad, apices subacute to acute. 



Gnathos weakly paired, somewhat reduced, rather short, directed 

 mostly ventrad, mesal portion weakly sclerotized, lateral margins 

 heavily sclerotized and evenly converging distad; apical extremities 

 short, rather stout, weakly scobinate, curving ventrocaudad, apices 

 subacute to narrowly rounded. 



Anellus very large; dorsal surface composed mostly of large, some- 

 what irregular, rather weakly but distinctly sclerotized area artic- 

 ulating with surrounding portions by means of definite membranous 

 infoldings; remainder membranous, unarmed, juxta absent. 



Aedeagus very large and distinctive, approximately two-thirds as 

 long as harpe, considerably flattened dorsoventrad and normally 

 resting just beneath sclerotized dorsal area of anellus, greatly expanded 

 laterad and appearing goblet-shaped in dorsal and ventral aspects, 

 asymmetrical, directed slightly ventrad in lateral aspect, base consider- 

 ably expanded laterad and opening broadly dorsad, portion just above 

 base constricted to about half width of base, approximate apical five- 

 sevenths very broadly expanded laterad and opening broadly but 

 rather indistinctly in dorsomesal and apical areas, apex very broad 

 and irregularly emarginate; dextral margin of apical portion armed 

 with several dozen, variously sized, heavily sclerotized, acute, spine- 

 like processes directed laterad and distad; approximately five to six 

 circular, well sclerotized inclusions scattered near bases of spinelike 

 processes. 



Vesica fairly large, membranous, apparently unarmed, limits vague 

 and blending with weakly sclerotized areas of aedeagus, appearing as 

 free and distinct membrane only at sinistral apical extremity of 

 aedeagus. 



Type. — ^Type cf (type no. 5346) in the U.S. National Museum. 



