332 
WISCONSIN STATE AGRICULTURAL SOCIETY. 
The wings of this insect, like those of several allied species, 
are of a bright rose-color, and with its cream-colored body, and 
the five black stripes upon each wing-case, it presents a beau¬ 
tiful appearance as it flies abroad in the clear light of the sun. 
The junior editor of this paper was the first person in the Uni¬ 
ted States to breed this species from the egg to the beetle state, 
and to ascertain that it required less than a month to pass 
through all its changes. In the Prairie Farmer for August 8, 
1863, will be found the lull account, by this writer, of the 
whole process, illustrated by a figure of the larvae. Subse¬ 
quently, in 1866, Dr. Shimer added some very interesting par¬ 
ticulars bearing upon this subject, in a paper which he pub¬ 
lished in the Practical Entomologist. There are about three 
broods of larvae every year in north Illinois and central Mis¬ 
souri, each of which goes underground to pass into the pupa 
state, the two first broods coming out of the ground in the 
beetle state about ten or twelve days afterwards, while the last 
one stays underground all winter, and only emerges in the 
beetle state in the following spring, just in time to lay its eggs 
upon the young potato leaves. The eggs, it may be added, 
are of a yellow color, and are always laid upon the underside 
of the leaves in patches of 20 or 30. At Fig. 44 «, a, the 
eggs are shown, and at Fig. 45 a, a, those of the bogus Colo¬ 
rado potato bug, which are of a lighter color, are also shown, 
all of the natural size. 
Unlike many other noxious insects, this larvae is not a gen¬ 
eral feeder, but is confined to plants belonging to the potato 
family ( Solanacece ,) and especially the genus to which the po¬ 
tato belongs {Solarium.) Occasionally it feeds on the tomato, 
and a few specimens have been noticed by us on the ground- 
cherry ( Physalis ,) and on the imported James town-weed, or 
gympson-weed {Datura.) According to Mr. Terry of Iowa, it 
also occurred in that state, several years ago, on the horse- 
nettle ( Solarium ,) upon which plant we have ourselves noticed 
it in great numbers in Missouri; and it is certainly far more 
destructive to the egg-plant than even to the potato. Now, the 
