The Experts below are selected from a list of 234 Experts worldwide ranked by ideXlab platform
Jacques M. Pasteels - One of the best experts on this subject based on the ideXlab platform.
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Chilocorine D, a novel heptacyclic alkaloid from a coccinellid beetle (Chilocorus renipustulatus)
Tetrahedron Letters, 2002Co-Authors: Pascal Laurent, Jean Claude Braekman, Désiré Daloze, Jacques M. PasteelsAbstract:Abstract Chilocorine D, a new heptacyclic ‘dimeric’ alkaloid, has been isolated from the coccinellid beetle Chilocorus renipustulatus and its structure determined by 1D and 2D NMR analyses. It is constituted of a hippodamine moiety linked to a modified octahydro-azaacenaphtylene skeleton encompassing a seven-membered ring.
Pascal Laurent - One of the best experts on this subject based on the ideXlab platform.
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Chilocorine D, a novel heptacyclic alkaloid from a coccinellid beetle (Chilocorus renipustulatus)
Tetrahedron Letters, 2002Co-Authors: Pascal Laurent, Jean Claude Braekman, Désiré Daloze, Jacques M. PasteelsAbstract:Abstract Chilocorine D, a new heptacyclic ‘dimeric’ alkaloid, has been isolated from the coccinellid beetle Chilocorus renipustulatus and its structure determined by 1D and 2D NMR analyses. It is constituted of a hippodamine moiety linked to a modified octahydro-azaacenaphtylene skeleton encompassing a seven-membered ring.
Shahram Hesami - One of the best experts on this subject based on the ideXlab platform.
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Review of the tribe Chilocorini Mulsant from Iran (Coleoptera, Coccinellidae)
ZooKeys, 2017Co-Authors: Amir Biranvand, Wioletta Tomaszewska, Lida Fekrat, Jahanshir Shakarami, Wenjing Li, Vincent Nicolas, Shahram HesamiAbstract:The Iranian checklist of the tribe Chilocorini Mulsant, 1846 (Coleoptera: Coccinellidae) is updated. In total, 13 species belonging to four genera (Brumoides Chapin, 1965, Chilocorus Leach, 1815, Exochomus Redtenbacher, 1843, and Parexochomus Barovsky, 1922) are listed from Iran. An identification key to all genera and species currently known from Iran is presented along with illustrations of adult specimens and male genitalia.
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Review of the tribe Chilocorini Mulsant from Iran (Coleoptera, Coccinellidae)
ZooKeys, 2017Co-Authors: Amir Biranvand, Wioletta Tomaszewska, Lida Fekrat, Jahanshir Shakarami, Wenjing Li, Vincent Nicolas, Shahram HesamiAbstract:The Iranian checklist of the tribe Chilocorini Mulsant, 1846 (Coleoptera: Coccinellidae) is updated. In total, 13 species belonging to four genera (Brumoides Chapin, 1965, Chilocorus Leach, 1815, Exochomus Redtenbacher, 1843, and Parexochomus Barovsky, 1922) are listed from Iran. An identification key to all genera and species currently known from Iran is presented along with illustrations of adult specimens and male genitalia.
Lynch, Christine Ann - One of the best experts on this subject based on the ideXlab platform.
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Established Predators of \u3cem\u3eFiorinia externa\u3c/em\u3e Ferris (Hemiptera: Diaspididae) on Eastern Hemlock (\u3cem\u3eTsuga canadensis\u3c/em\u3e (L.) Carriere) in Urban and Forest Sites
TRACE: Tennessee Research and Creative Exchange, 2006Co-Authors: Lynch, Christine AnnAbstract:A project was initiated in September 2004 to determine the indigenous predators of Fiorinia externa Ferris, the elongate hemlock scale (EHS), on eastern hemlock and their impact on the pest populations. Branch samples were taken monthly from four sites (two forest and two urban) in eastern Tennessee and western North Carolina to assess predator damage from October 2004 to April 2006. Predators of this exotic pest were collected from beat sheet samples from September 2004 to May 2006. Laboratory tests were conducted from field-collected predators to assess food consumption, feeding behavior, and intraguild competition among predators of EHS. From field samples, the average predator damage was 8.28% (range 4.72 to 9.84%) for the four sites, and predator damage was found throughout the year. Six predaceous species (Chilocorus stigma, Harmonia axyridis, Rhyzobius lophanthae, Scymnillus horni, Scymnus loweii, and Conwentzia pineticola) were documented to feed on EHS. There were 346 total adult predators, one pupa, and 157 larvae collected from September 2004 through May 2006. Rhyzobius lophanthae was the only predator collected throughout the year. The highest numbers of specimens collected were from the urban sites. Chilocorus stigma, R. lophanthae, and S. horni had the highest EHS consumption rates. From the functional tests, S. horni, R. lophanthae, and C. stigma exhibited different searching patterns for recognizing EHS as prey. Chilocorus stigma had the shortest prey recognition times, while R. lophanthae had the longest prey recognition times. Scymnus loweii did not feed during the functional tests. When four of the predators were tested in different combinations, all four exhibited aggressive tendencies, and this territorial behavior could cause feeding disruption. Rhyzobius lophanthae and S. horni consumed fewer Adelges tsugae females or immatures compared to EHS and were more prey specific. In fecundity tests, R. lophanthae most commonly laid eggs singly on a branch, needles, side of Petri dish, or filter paper than in clusters. It also laid eggs near or under EHS exuviae. Based on consumption and seasonal abundance, R. lophanthae, C. stigma, and S. horni should be further evaluated for use as biological control agents to complement the parasitoid, Encarsia citrina. (348 words
R.g. Booth - One of the best experts on this subject based on the ideXlab platform.
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A review of the species resembling Chilocorus nigrita (Coleoptera: Coccinellidae): potential agents for biological control
Bulletin of Entomological Research, 1998Co-Authors: R.g. BoothAbstract:Chilocorus nigrita (Fabricius) is a well-known predator of scale insects. It has been widely used for biological control and has spread naturally beyond its previous native range over the last three decades or so. Three other Oriental species closely resembling C. nigrita can now be separated. Chilocorus melas Weise is redescribed and a lectotype designated. Chilocorus gressitti Miyatake is a junior synonym of C. melas. Chilocorus subindicus from the southern parts of the Indian subcontinent and C. gracilior from eastern Indonesia are described as new.