. A manual for the study of insects. Insects. 188 THE STUDY OF INSECTS, make this style of house live in still water, and may, there- fore, be easily kept alive in aquaria. There are caddice-worm houses closely resembling in plan those just described but differing in appearance, being made of bits of moss. Sometimes the houses are built of leaves ; these may be fastened so as to form a flat case; or are ar- ranged in three planes, so as to form a tube, a cross-section of which is a triangle. Other Caddice-worms are masons, building their houses of grains of sand or of small stones. Sometimes t
. A manual for the study of insects. Insects. 188 THE STUDY OF INSECTS, make this style of house live in still water, and may, there- fore, be easily kept alive in aquaria. There are caddice-worm houses closely resembling in plan those just described but differing in appearance, being made of bits of moss. Sometimes the houses are built of leaves ; these may be fastened so as to form a flat case; or are ar- ranged in three planes, so as to form a tube, a cross-section of which is a triangle. Other Caddice-worms are masons, building their houses of grains of sand or of small stones. Sometimes these houses are tubes very regular in outline, being composed only of grains of sand fastened together with silk; but certain spe- cies of Mason Caddice-worms fasten larger stones on each side of this tube of sand (Fig. 228). Some of the species that. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
