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A Phenocline in the Sculpturing of the Egg Chorion in the Virgifera Species Group of Diabrotica (Coleoptera: Chrysomelidae)

James L. Krysan
The Coleopterists Bulletin
Vol. 41, No. 4 (Dec., 1987), pp. 323-326
Stable URL: http://www.jstor.org/stable/4008508
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A Phenocline in the Sculpturing of the Egg Chorion in the Virgifera Species Group of Diabrotica (Coleoptera: Chrysomelidae)
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Abstract

The egg of Diabrotica lemniscata LeConte is illustrated with a scanning electron micrograph, along with detail micrographs of the secondary sculpturing of nine taxa of Diabroticites. Comparison of the chorions of eggs revealed a phenocline in the secondary sculpturing in the virgifera species group of Diabrotica.

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