The forests of Brazil exhibit numerous beautiful examples of insect workmanship. Among others is the work of a caterpillar--a cocoon about the size of a sparrow's egg, woven in broad meshes of either buff or rose-coloured silk, and seen suspended from the tip of an outstanding leaf by a strong thread, five or six inches in length. It forms a conspicuous object hung thus in mid-air. The glossy threads with which it is knitted are stout, and the structure is not likely therefore to be torn by the beaks of insectivorous birds; while its pendulous position makes it doubly secure against their attacks, as the apparatus gives way when they peck at it. There is a small orifice at each end of the egg-shaped bag, to admit of the escape of the moth when it changes from the little chrysalis which sleeps tranquilly in its airy cage. Other caterpillars form cases with fragments of wood or leaves, in which they live secure from their enemies, whilst they are feeding and growing. Some of these, composed of small bits of stick, are knitted together with fine silken threads, and others make tubes very like the cadis-worms of English ponds. Others choose leaves, with which they form an elongated bag, open at both ends, having the insides lined with thick webs. As the weight of one of these dwellings would be greater than the caterpillar inside could sustain, it attaches the case by one or more threads to the leaves or twigs near which it is feeding. LANTERN-FLY. There is a large and beautiful insect, with an enormous transparent prolongation of the forehead, which is supposed to have a resemblance to a lantern: it is called the lantern-fly (Fulgora laternaria). Though often described as possessing luminous properties, it is now known to be destitute of any phosphorescence whatever. THE TANANA. [Chlorocelus tanana.]