554 
ANNUAL REPORT OF NEW-YORK 
colored, appearing as though denuded of their scales. Commonly a dull tawny yel¬ 
low spot beyond the centre of the wing is more or less distinct, and sometimes 
there is a band of the same color on the hind margin, which is broader towards the 
outer edge. Their tips arc rounded and the hind margin is cut off obliquely and 
feebly rounded. The hind wings are white and slightly glossy, with a pale leaden 
blue reflection, their hiud edge and tips pale brown. They have a long silky 
whitish fringe, which is longer on the inner margin, and shows a more pure white 
band on its base. The body is of the same blackish gray color with the fore wings, 
often varied with tawny yellow or reddish upon the neck and the hind part of the 
thorax. Beneath it is of the same color ns above, the wings being pale leaden, 
the lustre of satin, the hind pair paler. The shanks of the hind pair of legs aro 
thickened and robust. The antennaj are without any hairiness; they taper slightly, 
and are about two-thirds the length of the body. The feelers arc longer than tho 
head and are held horizontally forward, forming, in connection with a small tuft of 
hairs projecting forward from the face between their upper edges, a conical beak. 
Their apical joint is distinctly exposed, small, twice as long as broad, and is oval 
or slightly thicker towards its base. The spiral tongue is long, and whon alive the 
abdomen extends to the tips of the closed wings. 
