826 
ANNUAL REPORT OF NEW YORK 
OAK. LEAVES. 
unipunctata of Haworth, that it may prove to be only a variety of that 
species, which I have never met with in this State, and know only from 
specimens received from Hr. Morris of Baltimore, and the figures and des¬ 
criptions of authors. In these I discern no traces of but the one white 
spot, whilst here there are three, in a transverse row, contiguous and 
somewhat confluent with each other, their edges illy defined and the inner 
two less clear and bright, yet perfectly distinct. The colors also are gray 
and blackish, without any tinge of rusty yellow. The fore wings, as in 
unipunctata, show faintly a curved darker band near the base, and a 
Straight cloud-like streak still more faint from the middle of the inner to 
the middle of the outer margin, in which is a faint black crescent-shaped 
spot near the center, and the black band or line margining the dusky hind 
border has back of its inner end a curved transverse gray spot, and at its 
outer end a broader one of the same color, occupying the space between the 
outer white spot and the outer margin. The larva, moreover, of this moth, 
appears to be unlike that of unipunctata , as described by Guenee* from 
a drawing of Abbot’s ; though there can be but limited confidence in the 
accuracy of descriptions thus obtained. And furthermore, the Single white- 
spot moth is said to come abroad at the end of the season. 
Authors are discordant and in doubt with respect to the place of these 
moths in the family to which they pertain. I am inclined to think their 
true location is beside the genus Hypcretis of Guenee. 
320. Oak-i.f.af Tortrix, Argyrolepia Qucrcifoliana, now species. (Lepidoptera. Tor- 
tricidee.) 
The fore part of June, the sides of particular leaves curved upward and 
drawn slightly together by numerous cobweb-like threads, beneath which 
lies a slender grass-green sixteen-footed worm, about three-fourths of an 
inch long and the thickness of a rye straw, which eats the end of the leaf, 
and passes its pupa state in the same situation ; about the first of July 
giving out a small moth of a pale straw color with its body and hind wings 
glossy white, its fore wings prettily speckled with numerous small rusty 
yellow spots which run together in many transverse bands, leaving a space 
at their tips more vacant; its width 0.70. 
The moth here noticed may frequently be captured in our forests the fore 
part of July. Its larva resides under a thin cobweb covering which it 
constructs over the upper surface of the leaf towards its end, hereby draw¬ 
ing the sides somewhat together into a concave shape. As it merely cats 
off the end of the leaf, transversely, moving its quarters further back as it 
thus consumes successive portions of it, it is obviously liable to do no 
seusible amount of injury, unless like some of its kindred, it has the habit 
tlmt the important volumes of this author on the nocturnal Lepidoptera (Suites 
a Button) have not been in my hands a sufficient time for me to avail myself of them but 
slightly in the present Report. Hence, also, a number of species which 1 had prepared for 
insertion herein, are withdrawn, until their nomenclature can bo revised and compared with 
that ol these volumes. 
