title: Orientation of the pit-building antlion larva Euroleon (Neuroptera, Myrmeleontidae) to the direction of substrate vibrations caused by prey.
abstract: Pit-building antlion Euroleon nostras constructs efficient traps in sand to catch its prey. The predator is known to react to substrate vibrations produced by movements of its prey outside the pit with sand-tossing behaviour but it has not yet been ascertained if this reaction is directed towards the prey. The accuracy of the sand-tossing response in the presence of four prey species was measured using a video recording method. The sand-tossing angle was highly positively correlated with the prey angle. Sand tossing was most frequently elicited when prey was on the posterior sand surface. Covering the larval photoreceptors did not influence the antlion's localizing behaviour.
authors.affiliation: Department of Biology, Faculty of Natural Sciences and Mathematics, University of Maribor, Koroska 160, 2000 Maribor, Slovenia.
authors.forename: Bojana
authors.initials: B
authors.lastname: Mencinger-Vracko
authors.forename: Dusan
authors.initials: D
authors.lastname: Devetak
mesh_terms: D000818:Animals; D007313:Insecta / Q000502:physiology*; D007814:Larva; D009949:Orientation / Q000502:physiology; D011235:Predatory Behavior / Q000502:physiology*; D012822:Silicon Dioxide; D014732:Vibration
chemical_list: D012822:Silicon Dioxide