Summary
The defensive secretion of the opilionidPhalangium opilio contains 1,4-naphthoquinone and 6-methyl-1,4-naphthoquinone. Naphthoquinones are of rate occurrence in arthropods, having previously been reported only from certain tenebrionid beetles.
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Paper No. 60 of the series: Defense Mechanisms of Arthropods.
Acknowledgments. Partial support by the National Institutes of Health (grant Nos. AI-12020 and AI-02908, and fellowship award CA 05646 to D.F.W.) and the National Science Foundation (grant No. BMS 74-15084) is gratefully acknowledged. We thank Dr W.A. Shear for identifying the opilionid, and S. Daniels, K. Dodge, M. Guzewich and C. Smith for helping collect the specimens..
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Wiemer, D.F., Hicks, K., Meinwald, J. et al. Naphthoquinones in defensive secretion of an opilionid. Experientia 34, 969–970 (1978). https://doi.org/10.1007/BF01915290
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DOI: https://doi.org/10.1007/BF01915290