01813nas a2200181   4500008004100000020001400041245010400055210006900159260001300228300001200241490000700253520116200260653002401422100002501446700002201471700002101493856011701514       2009                        eng d  a1405-319500aCues used during the host recognition by Phymastichus coffea, a parasitoid of the coffe berry borer0 aCues used during the host recognition by Phymastichus coffea a p  cMay-June  a393-4010 v433 aThe wasp Phymastichus coffea LaSalle (Hymenoptera: Eulophidae) is a parasitoid of the adults of the coffee berry borer (CBB), Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae), considered the most important pest of this crop. A previous study has shown that A coffea uses long-range chemical cues during the host location process. The objective of this study was to investigate the role of physical and chemical cues at short range during the host recognition by P. coffea. The assays were performed with glass vials used as experimental arenas under laboratory controlled conditions. The results showed that the movement of the host did not influence the recognition process. CBB females were better accepted than males by P. coffea, mostly because they are bigger than males. The use of spherical plastic models, instead of borers, allows confirming that size is an important cue for host recognition by P. coffea. Color did not affect the time spent by parasitoids in contacting the host, though dark colors were handled longer by P. coffea. Our results seem to suggest that cuticular compounds were not involved in host recognition by P. coffea.10aHypothenemus hampei1 aChiu-Magana, Marcela1 aCastillo, Alfredo1 aRojas, Julio, C.  uhttps://weevil.myspecies.info/cues-used-during-host-recognition-phymastichus-coffea-parasitoid-coffe-berry-borer01567nas a2200169   4500008004500000020001400045245018400059210006900243260001300312300001200325490000700337520084800344653002401192100002501216700002101241856013501262       2008                        Engldsh    a1742-758400aHost location behaviour by two Cephalonomia spp. (Hymenoptera: Bethylidae) wasps associated with the coffee berry borer Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae)0 aHost location behaviour by two Cephalonomia spp Hymenoptera Beth  cDecember  a179-1840 v283 aThe host location behaviour of two closely related bethylid parasitoids was investigated under laboratory conditions. Although both species of parasitoid attack the coffee berry borer (CBB) Hypothenemus hampei Ferrari, they differ in their diet breadth. In Y-tube olfactometer bioassays, we investigated the behavioural responses of Cephalonomia stephanoderis (Betrem), a parasitoid with a narrower diet breadth, and Cephalonomia hyalinipennis (Ashmead), a parasitoid with a wider diet breadth, to the coffee-CBB complex volatiles. The results revealed that the responses differed for the two species. In single- and dual-choice tests, C. stephanoderis was attracted to volatiles emitted by CBB-infested coffee berries, dust/frass and CBB immature stages, whereas C. hyalinipennis was not attracted to any cues from plant-host complex offered.10aHypothenemus hampei1 aChiu-Alvarado, Pilar1 aRojas, Julio, C.  uhttps://weevil.myspecies.info/host-location-behaviour-two-cephalonomia-spp-hymenoptera-bethylidae-wasps-associated-coffee-berry-bo02385nas a2200169   4500008004100000020001400041245013500055210006900190260000800259300001000267490000700277520172600284653002402010100002502034700002102059856013502080       2011                        eng d  a1386-614100aBehavioural responses of bethylid parasitoid species of the coffee Berry borer to chemicals cues from host and non-host dust/frass0 aBehavioural responses of bethylid parasitoid species of the coff  cFeb  a45-530 v563 aThe bethylid wasps Cephalonomia stephanoderis Betrem and Prorops nasuta Waterston are parasitoids of the coffee berry borer, Hypothenemus hampei (Ferrari), the most serious insect pest of coffee worldwide. Recent studies on the host location behaviour of these parasitoids have shown that females are attracted to volatile compounds released by immature stages and dust/frass of H. hampei. Also, these studies have reported that the locomotory behaviour of parasitoids is influenced by contact chemical cues from host dust/frass. In this study, we investigated the responses of females of both species to volatiles and contact cues from dust/frass from different sources. Volatiles from dust/frass from H. hampei-infested coffee and maize infested with Sitophilus sp were attractive to P. nasuta females. In contrast, C. stephanoderis females were only attracted to the volatiles from dust/frass from H. hampei-infested coffee. Volatiles from an artificial diet used for rearing H. hampei were not attractive to females of both species. The effect of methanolic extracts from dust/frass from different sources on the patch-searching time of parasitoids was analysed using the Ethovision software. P. nasuta females spent more time in the patches treated with extracts of dust/frass from H. hampei-infested berries, artificial diet, and from maize infested with Sitophilus sp than on patches treated with dry coffee extract or solvent control. C. stephanoderis females spent more time on patches treated with dust/frass extracts from H. hampei-infested berries and artificial diet than on patches treated with an extract of dust/frass from maize infested with Sitophilus sp, an extract of dry coffee, and methanol control.10aHypothenemus hampei1 aChiu-Alvarado, Pilar1 aRojas, Julio, C.  uhttps://weevil.myspecies.info/behavioural-responses-bethylid-parasitoid-species-coffee-berry-borer-chemicals-cues-host-and-non-hos01932nas a2200181   4500008004100000020001400041245016200055210006900217260001200286300001200298490000800310520120500318653002401523100002501547700002201572700002101594856013501615       2009                        eng d  a0013-874600aAttraction of Prorops nasuta (Hymenoptera: Bethylidae), a parasitoid of the coffee berry borer (Coleoptera: Curculionidae), to host-associated olfactory cues0 aAttraction of Prorops nasuta Hymenoptera Bethylidae a parasitoid  cJanuary  a166-1710 v1023 aThe parasitoid Prorops nasuta Waterston (Hymenoptera: Bethylidae) is a wasp of the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae). In this study, the attractiveness of different volatiles to P. nasuta was studied in the laboratory using a Y-tube olfactometer. Female wasps were attracted to coffee berry borer-infested coffee berries but not to uninfested or artificially damaged berries. Full-grown larvae and pupae, and dust/frass of H. hampei isolated from infested berries, were attractive to parasitoid females, whereas immature coffee berry borer and dust/frass originating from coffee berry borer reared on an artificial diet were not. Adult coffee berry borer, derived from both infested berries or artificial diet, were not attractive to parasitoids. Females of P. nasuta did not show a preference for volatiles released from unparasitized versus parasitized hosts independent of the time since parasitization. Wasp attraction was influenced by the amount and age of dust/frass but not by the density of immature larvae. These findings show that host searching behavior of P. nasuta is mediated by chemical cues emitted from the coffee berry-H. hampei complex.10aHypothenemus hampei1 aChiu-Alvarado, Pilar1 aBarrera, Juan, F.1 aRojas, Julio, C.  uhttps://weevil.myspecies.info/attraction-prorops-nasuta-hymenoptera-bethylidae-parasitoid-coffee-berry-borer-coleoptera-curculioni