170 Journal New York Entomological Society. [Voi. xvii. 



wing from the marginal vein, but absent proximad (on the caudal margin absent 

 for a farther distance distad) ; longest along the caudal margin at the distal 

 fifth, shorter at the extremity of the wing and proximad on both margins and 

 shortest proximad at the caudal margin. Fore wings broadest at the distal 

 fifth, the usual dilatation of the caudal margin opposite to the marginal vein 

 and merely a broad convexity ; the last, most proximal of the marginal cilia 

 of the caudal margin about equal to the discal cilia. Fore wing oar-shaped, 

 delicately but distinctly fumated. excepting for a single subquadrate trans- 

 parent area caudad of the submarginal vein ; margins of the blade-shaped or 

 main portion of the wing, distad of the venation, dusky yellowish, as is also 

 the venation. 



Posterior wings delicately petiolate, feather-shaped, delicately fumated, 

 the petiole slightly less than a fifth the total length of the wing and including 

 most of the venation ; distad of the petiole, wing linear but curved, the cephalic 

 margin broadly concave, the caudal margin broadly convex, the blade of the 

 wing obliquely truncate proximad at the petiole and the marginal vein : 

 acuminate. Its marginal cilia complete, those of the caudal margin longest, 

 over twice as long as the wing is wide and twice the size of the cilia of the 

 cephalic margin ; discal absent in the proximal half of the blade, except- 

 ing the usual inconspicuous, longitudinal double row of them arising from 

 near the bases of the marginal cilia and running distad ; in the distal half of 

 the blade but a single row of about from 7-15 running along the center of the 

 blade ; this row becomes somewhat confused at the apex. 



Scape slightly swollen or convex ventrad, slightly longer than the club, 

 as long as the first and second funicle joints united, twice the length of the 

 pedicel, its dorsal margin but very slightly convex ; pedicel obconic, three 

 times the size of the small proximal funicle joint and not more than half the 

 length of the second funicle joint but wider at its apex than any of the 

 funicle joints ; proximal funicle joint somewhat like a ring-joint but slightly 

 longer than wide, minute, subglobose, about a fourth or fifth the length of 

 the second funicle joint and somewhat narrower, the smallest antennal joint 

 and conspicuous as such ; second funicle joint abruptly longer, the longest 

 antennal joint with the exception of the scape, very slightly longer than 

 funicle joint 3 ; funicle joints 3 and 4 subequal, each slightly shorter than 

 funicle joint 2 and slightly longer than funicle joints 5 and 6 which are sub- 

 equal and about a fourth shorter than funicle joint 2 ; funicle cylindrical, 

 6-jointed ; club ovate, divided obliquely slightly distad of its center, hence 

 2-jointed, as a whole widest at its middle and somewhat shorter than the 

 combined lengths of the fifth and sixth funicle joints, its greatest width about 

 twice that of the joints of the funicle, its proximal joint obconic, its apex 

 obliquely truncate, longer than the apical joint which is conic, its apex sub- 

 obtuse and its base obliquely truncate. Distal lateral angles of joints 3-6 of 

 the funicle, when seen in outline, slightly acute, the distal margins of these 

 joints acute. Club joints with distinct longitudinal ridges (balsam mounts). 



Male. — The same, with the exception of the usual secondary characters 

 pointed out in the generic description. 



