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It is evident that at this period the development of the insect has gone on in all important particulars much as in other insects, especially the Neuropterous Mystacides as described by Zaddach. The head is longer vertically than horizontally, the frontal, or clypeal region is broad, and greater in extent than the epicranio-occipital region.
Zaddach also enters into farther details, which in his opinion ally the worms nearer to the insects than many naturalists at his time were disposed to allow. I should, however, here add that I am told by Mr. In this calendar I propose to especially notice the injurious insects.
Moreover, nearly twenty years ago Zaddach, a German naturalist, contended that the worms are closely allied in their mode of development to the insects and crustaceans. This confirms the view of Leuckart and Ganin, who both seem to have overlooked Zaddach's remarks. Moreover, the rings of the harder bodied worms, as Zaddach says, contain chitine, as in the insects.
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