Abstract
THE life-history of a water-beetle can be outlined in a very few words. An egg is laid by the mother-beetle: an aquatic larva hatches out which feeds and grows, and, during the process of growth, moults several times. When full grown it leaves the water and burrows into the earth, forming a “cell,” in which it changes to a pupa. After a time the pupal skin is cast off, and the perfect insect makes its way out of the cell and resumes its life in the water.
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The Life-History of a Water-Beetle 1 . Nature 92, 20–24 (1913). https://doi.org/10.1038/092020a0
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DOI: https://doi.org/10.1038/092020a0