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Quarterly Journal of Microscopical Science, Vol s3-102, 249-255, Copyright © 1961 by Company of Biologists

The Shell of Acridid Eggs

J. C. HARTLEY 1

1 Department of Zoology, University of Bristol

The shell of the newly-laid egg of Locusta migratoria is composed of a chorion and an outer layer, here termed the extrachorion. The development of the chorion and extrachorion has been followed. The structures of the egg-shells of Schistocerca gregaria, Romalea microptera, and 6 species of British grasshoppers are also described and are found to conform to the same pattern. The chorion has a meshwork structure which may be filled with air or water. Wound repair in the eggs is also noted.






© The Company of Biologists Ltd 1961