WOOLY BEARS. 75 
very gaily colored, others are pure white. When at rest they 
usually fold their wings roof-like upon the body. Most of 
them are nocturnal and are attracted to lights. Their larve 
are mostly clothed with dense clusters of hairs, and are 
usually very general feeders, preferring herbaceous plants, 
though some are destructive to the foliage of trees. 
THE BLUE-SPANGLED CATERPILLARS. 
(Callimorpha Leconte Boisd. and fulvicosta Clem.). 
There are some slender bodied Arctiids that possess fine 
or bristle-like antennz, which are not distinctly feathered in 
either sex; their tongues are also quite long. They belong 
to the genus Callimorpha (meaning beautiful form). In the 
Eastern and Southern States these caterpillars occur more 
commonly upon the peach; here in Minnesota they have been 
found upon the apple, but chiefly upon the blackberries. 
They are black worms, covered with short stiff hairs, and 
studded with peculiar blue spots, which have given them the 
above name. They spend the winter in some sheltered spots, 
as under loose bark, etc., but as soon as the leaves expand 
in spring, they forsake these sheiters and commence to feed. 
As they grow rapidly they soon reach their full size, and 
now measure about one inch in length. They are of a vel- 
vety-black color above, and pale bluish, speckled with black, 
below. A deep orange line extends along the back, and a 
still more distinct wavy or broken one along each side. 
The body is covered with many steel-blue warts, with a 
polished and auite brilliant surface; from each issues a short 
and bristly hair. As soon as full grown the caterpillar 
selects a sheltered spot, and here spins a slight and white 
silken cocoon. The pupa is purplish-brown, finely punctated, 
and terminates in a flat plate tipped with vellowish-brown 
and curled bristles. 
