title: [Host selection of Oncopeltus fasciatus dall. (Heteroptera: Lygaeidae): Glycosides of asclepiadaceae the chemical basis for host specificity].
abstract: The host selection of O. fasciatus is based on typical glycosides sequestered from the Asclepiadaceae. Neither the genins - characterised as 15-oxasteroids - nor the sugars are phagostimulants. After the passage through the insect the glycosides exhibit their biological activity furtheron.
authors.affiliation: Institut für angewandte Zoologie der Universität Bonn, Bonn, Deutsland.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Eggermann
authors.affiliation: Institut für angewandte Zoologie der Universität Bonn, Bonn, Deutsland.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Bongers