Abstract
THE EARLY TYPES OF INSECTS.—Samuel H. Scudder has published a memoir on the early types of insects (Memoirs of the Boston Society of Natural History, vol. iii. Part i. No. II, March, 1879). He concludes that the hexapods, arachnids, and myriapods appeared together in the carboniferous strata. That the hexapod insects may be divided into a higher group (Metabola), and a lower group (Heterometabola), that the latter are Devonian and carboniferous, the former just appearing in the Jurassic period. The Devonian forms were in the early stages of their life, undoubtedly aquatic. Nearly all the palasozoic orthoptera belong to the lower Saltatorial families. It would seem that the earlier types were of inferior organisation, and that the general type of wing structure in insects has remained unaltered from the earliest times.
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Biological Notes . Nature 19, 584–585 (1879). https://doi.org/10.1038/019584a0
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DOI: https://doi.org/10.1038/019584a0