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Adult Feeding and Distribution of Dynastes Granti Horn (Coleoptera: Scarabaeidae)

Arnold S. Menke and Frank D. Parker
The Coleopterists Bulletin
Vol. 42, No. 2 (Jun., 1988), pp. 161-164
Stable URL: http://www.jstor.org/stable/4008541
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.
Adult Feeding and Distribution of Dynastes Granti Horn (Coleoptera: Scarabaeidae)
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Abstract

Adults of an Arizona population of Dynastes granti Horn were observed feeding on the common tree, velvet ash, Fraxinus velutina Torry. Feeding damage was restricted to young branches and resulted in linear scars that exposed the cambium. An apparent defense behavior was observed when the beetles were disturbed: a stream of liquid was squirted from the tip of the abdomen. The recorded range of the species is extended to adjacent areas in southern Utah, western New Mexico, and northern Mexico.

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