You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. 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.
Mantids and Milkweed Bugs: Efficacy of Aposematic Coloration Against Invertebrate Predators
May R. Berenbaum and E. Miliczky
The American Midland Naturalist
Vol. 111, No. 1 (Jan., 1984), pp. 64-68
Published by: The University of Notre Dame
Stable URL: http://www.jstor.org/stable/2425543
Page Count: 5
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.
Preview not available
After attacking and consuming milkweed bugs (Oncopeltus fasciatus) raised on seeds of milkweed (Asclepias syriaca), the mantid Tenodera ardifolia sinensis regurgitates and shows signs of poisoning by cardenolides, secondary substances sequestered by the bugs from their host plants. After several encounters, mantids refuse to attack milkweed bugs altogether; moreover, they refuse to attack palatable and non-toxic O. fasciatus raised on seeds of sunflower, a plant lacking cardenolides. This, then, is the first report of the efficacy of automimicry as a defense against invertebrate predators, and the first report of emetic potential of substances derived from milkweed against insects.
The American Midland Naturalist © 1984 The University of Notre Dame