846 
ANNUAL REPORT OF NEW YORK 
FOPLAB. LEAVES. 
fore wings black, thick, much thicker at its apex along the inner margin 
of the stigma-spot, and the short veinlet bounding the anterior end of this 
spot more slender than the rib-vein ; its length 0.10, and to the tips of its 
wings 0.15. 
This insect is attracting much notice in the city of Albany at the time 
these pages are passing through the press. The latter part of June, an 
article appeared in one of the daily papers of the city, directing attention 
to the remarkable phenomenon presented by the poplars in a particular 
yard on the opposite side of the river in Greenbush, most of the leaves 
having at their base a little ball filled with insects. Several of the leaves 
of these trees were kindly procured and forwarded to me by L. A. Orcutt, 
Esq. Visiting the city personally a fortnight after, I was informed the 
