494 
ANNUAL REPORT OF NEW-YORK 
In its perfect state the Bark-louse lady-bird is 0.17 or 0.20 
long, very convex and almost hemispheric, highly polished and 
shining, covered with numerous very minute punctures. It is 
black with a round red or reddish yellow spot on the middle of 
each wing cover. Beneath it is black with the abdomen red or 
yellow, its basal segment black except upon each side. 
It is probable that the scale insect of the pine can be destroyed 
by thoroughly showering the leaves with a solution of soap or 
with tobacco water immediately after the young larvse have 
hatched from the eggs. Could we be so fortunate as to devise 
some mode by which we could multiply the lady-bird at plea¬ 
sure, it would undoubtedly be the most effectual mode of rid¬ 
ding the pine and also the apple tree of these minute vermin 
which are so pernicious to them. 
2. THE LARCH OR TAMARACK. 
AFFECTING THE LEAVES. 
On the limbs in June and July, consuming the leaves; a largo flattened 
ash-gray worm, resting appressed to and closely resembling the bark. 
The LARcn cheater or lappet moth, Planoaa Laricia, (plate 2, fig. 5,6,) 
new species. 
The modes by which nature has endowed many insects to ena¬ 
ble them to elude the search of birds and other enemies are 
often truly wonderful. Among the insects thus endowed, the 
lappet moths and their caterpillars have often excited the ad¬ 
miration of the curious. The latter when in repose have the 
body flattened, somewhat like that of a leech, and on each side 
of each segment projects a little lappet or flat lobe. These lap¬ 
pets are pressed down upon the surface of the limb on which 
the worm is at rest. The sides of the body are also fringed with 
hairs which are similarly appressed to the limb. Thus all ap¬ 
pearance of an abrupt elevation or an interstice to indicate the 
ends and sides of the worm is obliterated, and it resembles 
merely a slight swell of the natural bark, the deception being 
made complete by the color, which is commonly identical in its 
hue with that of the bark. And when there are spots or marks 
upon the caterpillar, they imitate the glandular dots, scars and 
