. The transformations (or metamorphoses) of insects (Insecta, Myriapoda, Arachnida, and Crustacea) : being an adaptation, for English readers, of M. Émile Blanchard's "Metamorphoses, moeurs et instincts des insects;" and a compilation from the works of Newport, Charles Darwin, Spence Bate, Fritz Müller, Packard, Lubbock, Stainton, and others. THE LIBELULA. 157 the intestine and admits a quantity of water. This, of course^contains air mechanically suspended, which is taken up thetracheae just mentioned. Curiously enough, these insects, whichwalk very slowly, manage to get out of the way of enem
. The transformations (or metamorphoses) of insects (Insecta, Myriapoda, Arachnida, and Crustacea) : being an adaptation, for English readers, of M. Émile Blanchard's "Metamorphoses, moeurs et instincts des insects;" and a compilation from the works of Newport, Charles Darwin, Spence Bate, Fritz Müller, Packard, Lubbock, Stainton, and others. THE LIBELULA. 157 the intestine and admits a quantity of water. This, of course^contains air mechanically suspended, which is taken up thetracheae just mentioned. Curiously enough, these insects, whichwalk very slowly, manage to get out of the way of enemies byexpelling the water in their intestine with considerable violence,and this projects them to some distance. When about to undergo its transformation the nymph leavesthe water and crawls upon plants by the side. Then the skindries, splits, and sets the perfect insect free. The larva? live. OF THE AXn IllE PERFECT INSECT EMERGING. about a year before acquiring their full growth, and the nymph isvery active, and has the rudiments of wings. The ^EscJinita; have a rounded and robust body, and threearticulations to their lip. Some have enormous eyes, set closetogether, so that they nearly touch each other in the middleline, and others have their eyes set wide apart. The engraving shows the metamorphosis of ^-Esc/iiia macii-latissivia. On the right one of them is flying; immediately below,in the water, a nymph may be seen projecting her long underlip with its pincers; by its side is a larva in a quiet condition. 358 TRANSFORMATIONS OF INSECTS. and above it, on the leaves, a perfect insect may be seen crawlingout of the skin of the nymph preparatory to taking flight. The Agrionidt^ have slender bodies, and the abdomen is cylin-drical, and in the shape of a rod. They are usually very smalldragon flies, and there is a very common one whose males areof a beautif
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Keywords: ., bookcentury1800, bookdecade1870, booksubjec, booksubjectcrustacea
