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Glandular Pyrazine Emission by a Tropical Katydid: An Example of Chemical Aposematism? (Orthoptera: Tettigoniidae: Copiphorinae: Vestria Stål)
David A. Nickle, James L. Castner, Scott R. Smedley, Athula B. Attygalle, Jerrold Meinwald and Thomas Eisner
Journal of Orthoptera Research
No. 5 (Aug., 1996), pp. 221-223
Published by: Orthopterists' Society
Stable URL: http://www.jstor.org/stable/3503597
Page Count: 3
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The Peruvian Crayola® katydid, Vestria undescribed species, responds to disturbance by everting a small odoriferous gland from near the tip of its abdomen. Three pyrazines have been characterized from the secretion of this gland, which is present in both sexes of this insect. It is argued that the gland serves for dissemination of a warning odor. A second undescribed species of Vestria, sympatric with the Crayola katydid, also produces pyrazines.
Journal of Orthoptera Research © 1996 Orthopterists' Society