caa a22 4500 388092793 CHVBK 20180307125256.0 cr unu---uuuuu 161130e199908 xx s 000 0 eng 10.4039/Ent131495-4 doi S0008347X00010117 pii (NATIONALLICENCE)cambridge-10.4039/Ent131495-4 MARKING THE PACKAGE OR ITS CONTENTS: HOST DISCRIMINATION AND ACCEPTANCE IN THE ECTOPARASITOID DENDROCERUS CARPENTERI (HYMENOPTERA: MEGASPILIDAE) [Elektronische Daten] Dendrocerus carpenteri (Curtis) was reared in the laboratory on prepupae of Aphidius ervi Haliday (Hymenoptera: Braconidae, Aphidiinae) developing in pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae). To test alternative hypotheses about host-marking behaviour and discrimination, we transferred unparasitized and previously parasitized A. ervi prepupae from donor to recipient mummies, which were either "unparasitized" or "parasitized." Females accepted already parasitized hosts within unparasitized mummies, but they rejected unparasitized hosts within previously parasitized mummies. Host discrimination was not influenced by self and conspecific parasitism. Eggs were frequently placed directly on the mummy shell, rather than on the primary parasitoid, or on dummies made from dental wax. Prepupae removed from their mummy shell were not accepted for oviposition. We propose that the "search template" of D. carpenteri is defined, primarily, by the aphid mummy, which is being marked with a contact pheromone after oviposition. Copyright © Entomological Society of Canada 1999 Chow Andrew Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6 Mackauer Manfred Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6 The Canadian Entomologist Cambridge University Press 131/4(1999-08), 495-505 0008-347X 131:4<495 1999 131 TCE https://doi.org/10.4039/Ent131495-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent131495-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chow Andrew Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6 NATIONALLICENCE 700 1- Mackauer Manfred Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 131/4(1999-08), 495-505 0008-347X 131:4<495 1999 131 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge