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Within the rove beetle subtribe Philonthina (Staphylinidae) there are found paired abdominal defensive glands which show a bipartition and are characterized by an unique, evaginable evaporation tissue which is described for the first time. The gland chemistry is found to be characterized by at least 27 compounds. The main component is represented by the alkaloid actinidine, minor components are iridodial, three possible monoterpenoid iridodial precursors, an octadecenole and two series o f hydrocarbons and acetates which are partly branched and unsaturated. It could be shown, that the separated gland of the evaporation tissue, whose evagination was studied, has no different synthetic abilities as compared with the main gland system. Chemotaxonomic results according to Hennig’s principle reveal an isolated position of the rove beetle tribe Quediini within the subfamilies X antholininae and Staphylininae. The morphologically unique defensive gland of the Xantholininae may be homologized with other abdominal glands of the Staphylinina and Philonthina, based on the common presence of iridoid defensive components

zeitschrift für naturforschung c

Vergleichende untersuchungen zur wehrchemie und drüsenmorphologie abdominaler abwehrdrüsen von kurzflüglern aus dem subtribus philonthina (coleoptera, staphylinidae) / Comparative investigations on defensive chemistry and gland morphology of abdominal defensive glands from rove beetles of the subtribe philonthina (coleoptera, staphylinidae)