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Breeding Populations of Lixus carinerostris Boheman and Calodemas prolixus Faust (Coleoptera: Curculionidae) Co-Existing on Mesembryanthemaceae

Schalk Louw
The Coleopterists Bulletin
Vol. 47, No. 4 (Dec., 1993), pp. 335-339
Stable URL: http://www.jstor.org/stable/4009085
Page Count: 5
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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.
Breeding Populations of Lixus carinerostris Boheman and Calodemas prolixus Faust (Coleoptera: Curculionidae) Co-Existing on Mesembryanthemaceae
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Abstract

The lixine weevils Lixus carinerostris and Calodemas prolixus successfully breed whilst co-existing on the succulent Mesembryanthemum crystallinum in the Lesser Karoo, South Africa and southern pro-Namib, Namibia. The species exhibit trophic specializations: larvae of L. carinerostris develop endophytically only in the stems and crowns, whereas larvae of C. prolixum develop exophytically only on the tap roots.

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