ORDER I.—BEETLES. 21 
The grubs (Jarve) of the Lady-birds are much the most 
voracious, and on that account are armed with two very 
powerful jaws. They creep along on the leaves and 
branches of plants until they find plant-lice, among which 
they then ravage like wolves in a sheep-fold. When full 
grown, their body is generally half an inch long, of an ob- 
long form and bluish colof, with four or six yellow spots, 
which generally become black spots upon the red wing- 
covers of the perfect insect. They remain in the condition 
of larvee about two weeks, when they fasten themselves upon 
a leaf, cast their skin, and metamorphose themselves into a 
variegated or ash-colored short cocoon, from which the per- 
fect Lady-bird issues in about a fortnight. 
A. great variety of these insects are found throughout the 
whole world, but the largest species we 
have in North America is the Northern 
Lady-bird (Coccinella borealis, Fig. 5), 
which is principally found upon the leaves 
of the Pumpkin vine, and several other 
species of gourd (Cucurbitacee). Here 
they feed in company with their grubs, 
not on the leaves of any of these plants, 
as many believe, but on the plant-lice and the larve of the 
Squash-bug which abounds on those vines. 
Many other species of this genus, which are found in this 
country, are named according to the number and form of 
the spots on their wing-covers. Thus we have 
Figure 3. 

Northern Lady-bird. 
Coccinella bi-punctata, ? 
ms immaculata, 
a , - and many others. 
ursina, 
+ novem-punctata, 
These Beetles were, several years ago, recommended as a 
superior remedy for tooth-ache, which was said to be im- 
mediately cured by putting one or two mashed Lady-birds 
into the hollow tooth. I tried this application in two in- 
