. Economic entomology. Beneficial insects; Insect pests; Thysanura. SPRING TAILS. 403 CASE of species of Collembola, being that of a scale of Lepidocyrtus curvicollis, which, no doubt, deviates from the others, but still. Scale of Lepidocyrtus curvicollis, much magnified, and portion of it still more enlarged. bears the same cachet. We therefore propose to retain the name Thysanura for the whole order, and to take Sir John's name Col- lembola for the first section, and leave the other under its old name of Lepismidse. Tribe COLLEMBOLA. Horticulturists, at least those who possess "frames,&
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. Economic entomology. Beneficial insects; Insect pests; Thysanura. SPRING TAILS. 403 CASE of species of Collembola, being that of a scale of Lepidocyrtus curvicollis, which, no doubt, deviates from the others, but still. Scale of Lepidocyrtus curvicollis, much magnified, and portion of it still more enlarged. bears the same cachet. We therefore propose to retain the name Thysanura for the whole order, and to take Sir John's name Col- lembola for the first section, and leave the other under its old name of Lepismidse. Tribe COLLEMBOLA. Horticulturists, at least those who possess "frames, " still more those who have cucumber-frames or hot-beds, are pretty familiar with the insects of this family. If we place a cloth over the glass, we shall probably find next morning, on removing it, that the place where it lay is swarming with a quantity of minute soft delicate insects, some of which will take to their heels and endea- vour to escape by running, and others will spring upwards with considerable force, taking bounds which, were we able to take them proportionately high, would carry us over our highest steeples. These surprising leaps are not made like those of the flea and most other jumping insects, by means of powerful muscles placed in very thick thighs, but by means of a sub-abdominal forked organ, which acts as a spring very much in the same way that the toy familiar to our boyhood called a jumping-frog does. These are Collembola. But it is inside the frames that we see tjiem in greatest numbers ; they often swarm there as tliick as powder, . 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 work.. Murray, Andrew, 1812-1878. [London] Chapman and Hall