. 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. Adult. Hydrachiia geographica. (Magnified.] Larva. weeds and bottom slowly, and seek a hole or a crevice, downwhich they plunge. There the metamorphosis takes place, andthe six-legged larvae become motionless nymphs. The nymphstage lasts fifteen days, and
. 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. Adult. Hydrachiia geographica. (Magnified.] Larva. weeds and bottom slowly, and seek a hole or a crevice, downwhich they plunge. There the metamorphosis takes place, andthe six-legged larvae become motionless nymphs. The nymphstage lasts fifteen days, and then a small brilliant red eight-leggedadult Liinnocharis emerges. The globular water mite called HydracJina geographica may betaken as the type of the genus HydracJina; but M. Duges hasgiven such interesting details respecting a closely-allied species,HydracJina globnla (Hermann), that we do not hesitate to takeadvantage of them, especially as they convey most correct impres-sions concerning the metamorphosis.* The true HydracJina; are distinguished by their beaks being as * Duges, Op. Cit., p. i6i et seq. THE HYDRACHNA GLOBULA. 439 long as their palpi, their having the third joint of the palpi thelongest, and by the presence of sharp blades for mandibles. Afull-grown female of Hydrachua globula measures two lines anda quarter in di
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Keywords: ., bookcentury1800, bookdecade1870, booksubjec, booksubjectcrustacea
