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Psyche
Volume 96, Issue 3-4, Pages 153-160
http://dx.doi.org/10.1155/1989/31512

Chemical Defense of an Ozaenine Bombardier Beetle From New Guinea

1Section of Neurobiology and Behavior, Cornell University, Ithaca 14853, New York, USA
2Department of Entomology, University of Alberta, Edmonton AB, T6G 2E3, Canada
3Department of Chemistry, Cornell University, Ithaca 14853, New York, USA
4Department of Agricultural and Biological Engineering, Cornell University, Ithaca 14853, New York, USA

Received 5 September 1989

Copyright © 1989 Thomas Eisner et al.

Abstract

We had occasion recently to study 3 live specimens of Pseudozaena orientalis opaca, an ozaenine carabid beetle (subfamily Paussinae, tribe Ozaenini) from New Guinea, and report here on the biology and chemistry of its defensive spray mechanism. A number of New World ozaenines had previously been studied chemically and shown to be “bombardiers” that discharge a hot quinonoid mixture (Aneshansley et al. 1969, 1983; Eisner and Aneshansley 1982; Eisner et al. 1977; Roach et al. 1979). Pseudozaena proved no exception.