Directions for collecting and preserving insects . thereception of his cages, and employs a small portable crane to lift themOllt of the ground when it is desirable to examine them. COLLECTING AND PRESERVING INSECTS RILEY. Other Apparatus.—Much of the breeding of insects can be clone withthe simplest apparatus, and for the rearing of Microlepidoptera, Gall-iiisects, and the keeping of cocoons and chrysalides of small species, noth-ing is more convenient than a medium sized test-tube, the end of whichmay be plugged with cotton. 1 have recently successfully carried overthe winter the larva of Sp
Directions for collecting and preserving insects . thereception of his cages, and employs a small portable crane to lift themOllt of the ground when it is desirable to examine them. COLLECTING AND PRESERVING INSECTS RILEY. Other Apparatus.—Much of the breeding of insects can be clone withthe simplest apparatus, and for the rearing of Microlepidoptera, Gall-iiisects, and the keeping of cocoons and chrysalides of small species, noth-ing is more convenient than a medium sized test-tube, the end of whichmay be plugged with cotton. 1 have recently successfully carried overthe winter the larva of Spite-dux xpeciosus, which had been removed earlyin the fall from its earthen pod or cocoon, the larva transforming to aperfect pupa in the spring. In this case the test tube was plugged withcotton and inserted in a wooden mailing tube to exclude the jars with glass covers or with a covering of gauze may be em-ployed for most insects, with the advantage of occupying comparativelylittle space and of isolating the species under FIG. 125—Root cage: a, frame rath slide removed; 6, movable slide; c, top view (original). Long glass tubes, open at both ends^ are useful in many other ways,especially in the rearing and study of the smaller hypogean insects orthose which bore and live in the stems of plants. An infested stem cutopen on one side and placed in such a tube will generally carry anyinsect that has ceased feeding, or any species like the wood-boring beeswhich feed upon stored food, successfully through their transformations;while root-lice may be kept for a lengthy period upon the roots in suchtube, providing a portion of the root extends outside of the tube and iskept in moistened ground or water. In all such cases these tubes, withtheir contents, should be kept in the dark, either in a drawer or elsecovered with some dark material which can be wound around or slippedover them, and the ends must be closed with cotton or cork. The rearer of insects will
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Keywords: ., bookauthorrileycha, bookcentury1800, bookdecade1890, bookyear1892
