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Tent

caterpillars, common and ground

TENT, a portable dwelling-place formed of flexible material, as blankets, hides or more commonly canvas, stretched with cords on poles. Tents are chiefly used in Europe and the United States as shelters for soldiers, although the first hunters in this country, following the Indians. made partial use of them. The most common form of tent is the A tent, having a ridge-pole, across which a canvas is slung and sloped to form the main roof, the sides being fastened by cords to stakes in the ground, and flies or wings being hung for sides. When a hoop is used instead of a ridge-pole as the main support it is a bell-tent. The circus tent usually has two, three or more main masts, with ridge-poles or ropes between them, and a vast spread of canvas reaching to the ground.

caterpillars of some moth of the genus Clisiocampa, specifi cally the apple-tree or spring species (C. amer icana) of the northeastern States. The moth ts.of.rnedium size and plain colors. Its eggs are laid in autumn in the fortn of bands of 300 to 400 glued about the twigs of fruit-trees. They hatch early in spring, and.the caterpillars begin to spin across nearby forking twigs a triangular silken web or tent, in which they take shelter and grow; many other trees as well as those of the orchard are affected. They go out in the

daytime to feed on foliage and at night gather inside the web, which should be burned at night when it is populous, or destroyed by a spray of kerosene. The caterpillars become full grown in June, and then are about two inches long, hairy, with a white dorsal stripe and with numerous fine crinkled black lines on a yellow ground, united below into a common black band, with a blue spot on the side of each ring. Then the caterpillars spin their dense white fuzzy cocoons behind the loose bark, or boards, and the moths appear about July 1. Another spe cies, often very destructive to the foliage of shade-trees, is the forest tent-caterpillar moth (C. disstria), whose caterpillars are to be dis tinguished by a row of spots instead of a line along the back. The more common tent-cater pillars of the Pacific Coast are the larvw of the early C. californica and of the later C. con strict°, both orchard-pests. The last-named live in colonies but do not malce tents.