Image: Chlaenius Plate 10 Eisner et al 1963

Description: Figs. 1-4. Four consecutive discharges of Chlaenius, elicited by pinching with forceps individual pro- and metathoracic legs as shown. The spray pattern is registered on filter paper impregnated with a chemical indicator (see text, part I). Fig. 5. An individual Chlaenius, after having been caused to discharge, was transferred from place to place on a sheet of indicator paper. As long as residual secretion remained on its body and feet, a conspicuous discolored zone developed around it at each locus (the dark spots within each zone are footprints). Transfer was at two-minute intervals; the times given are from the moment of discharge.
Title: Chlaenius Plate 10 Eisner et al 1963
Credit: T. Eisner, J. J. Hurst, and J. Meinwald, “Defense Mechanisms of Arthropods. XI. The Structure, Function, and Phenolic Secretions of the Glands of a Chordeumoid Millipede and a Carabid Beetle,” Psyche, vol. 70, no. 2, pp. 94-116, 1963. doi:10.1155/1963/69817
Author: T. Eisner, J. J. Hurst, and J. Meinwald
Usage Terms: Public domain
License: Public domain
Attribution Required?: No