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Max Fischer - One of the best experts on this subject based on the ideXlab platform.

  • Zusammenfassung der neotropischen Arten der pendulus-Gruppe des Genus Optus Wesm. (Hymenoptera, Braconidae)1
    Zeitschrift für Angewandte Entomologie, 2009
    Co-Authors: Max Fischer
    Abstract:

    Zusammenfassung Die pendulus-Gruppe der Gattung Opius Wesmael wird durch die Kombination folgender Merkmale gekennzeichnet: Ruckengrubchen des Mesonotums fehlt, Praecoxalfurche glatt oder ganz fehlend, Mund offen, Propodeum glatt, Abdomen hinter dem ersten Tergit glatt. Ein Bestimmungsschlussel fur 20 neotropische Arten wird vorgelegt. Als neu werden beschrieben: Opius citripes, O. citronipus, O. imperator, O. servus, O. signipes, O. tulcanensis, O. virtuosus und O. vocatus. Optus chilensis de Santis wird redeskribiert. Wichtige morphologische Einzelheiten der neubeschriebenen oder wiederbeschriebenen Arten sind abgebildet. Summary Taxonomy of Neotropic Species of Opius pendulus group (Hym., Bracon.) The pendulus-group of the genus Opius Wesmael is defined by the combination of following characters: dorsal fovea of mesonotum absent, precoxal furrow smooth or completely absent, mouth open, propodeum smooth, abdominal tergites beginning from 2nd without sculpture. A key for identification of 20 species of the neotropical region is proposed. Opius citripes, O. citronipus, O. imperator, O. servus, O. signipes, O. tulcanensis, O. virtuosus and O. vocatus are described as new. Opius chilensis de Santis is redescribed. Important morphological details of the newly described or redescribed species are figured.

  • Gezüchtete Opiinae aus dem Zoologischen Museum der Humboldt‐Universität zu Berlin (Hymenoptera, Braconidae)
    Zeitschrift für Angewandte Entomologie, 2009
    Co-Authors: Max Fischer
    Abstract:

    Zusammenfassung In der vorliegenden Arbeit werden die gezuchteten Opiinae des Zoologischen Museums der Humboldt-Universitat zu Berlin behandelt. Opius clidogastrae, Opius compressiventris, Opius periclymenii und Opius veratri werden als neue Arten beschrieben. 30 weitere Arten werden mit ihren hier festgestellten Wirten, deren Wirtspflanzen, Fundorten, Sammeldaten und bereits bekannten Wirten listenmasig festgehalten. Das bisher unbekannte ♀ von Opius curtifemur Fi. und das bis jetzt noch nicht festgestellte von Opius striatus (Forst.) werden nachgewiesen.

  • Über das Genus Opius Wesmael: Die neotropischen Arten der pallipes‐Gruppe (Hymenoptera, Braconidae, Opiinae)
    Zeitschrift für Angewandte Entomologie, 2009
    Co-Authors: Max Fischer
    Abstract:

    Zusammenfassung Die vorliegende Arbeit bringt eine neue taxonomische Bearbeitung der neotropischen Arten der pallipes-Gruppe der Gattung Opius Wesmael. 38 Arten werden in eine Bestimmungstabelle zusammengefast und ihre Verbreitung angegeben. Folgende 12 Arten werden neu beschrieben: Opius barrosensis, O. campinaensis, O. cuencaensis, O. curtisignum, O. cuzcoensis, O. horcomollensis, O. johannis, O. laplatanus, O. longisignum, O. mediosignum, O. rufisignum, O. zamoraensis. Auserdem wurden zwei Arten wiederbeschrieben, die in fruheren Revisionen nicht berucksichtigt werden konnten, namlich Opius levinotum Brues and Richardson und O. trimaculatus Spinola. Die Literatur uber die bereits fruher neu- oder wiederbeschriebenen Arten wird zitiert. Summary The present paper deals with a new taxonomic revision of the neotropic species of the pallipes-group of the genus Opius Wesmael. 38 species are summarized in the key for identification, and their distribution is indicated. The following 12 species are described as new: Opius barrosensis, O. campinaensis, O. cuencaensis, O. curtisignum, O. cuzcoensis, O. horcomollensis, O. johannis, O. laplatanus, O. longisignum, O. mediosignum, O. rufisignum, O. zamoraensis. Moreover, two species not treated in previous papers, e. g. Opius levinotum Brues and Richardson and O. trimaculatus Spinola, are redescribed. The literature concerning the species already described or redescribed previously is cited.

  • uber das genus Opius wesmael die neotropischen arten der pallipes gruppe hymenoptera braconidae opiinae
    Journal of Applied Entomology, 2009
    Co-Authors: Max Fischer
    Abstract:

    Zusammenfassung Die vorliegende Arbeit bringt eine neue taxonomische Bearbeitung der neotropischen Arten der pallipes-Gruppe der Gattung Opius Wesmael. 38 Arten werden in eine Bestimmungstabelle zusammengefast und ihre Verbreitung angegeben. Folgende 12 Arten werden neu beschrieben: Opius barrosensis, O. campinaensis, O. cuencaensis, O. curtisignum, O. cuzcoensis, O. horcomollensis, O. johannis, O. laplatanus, O. longisignum, O. mediosignum, O. rufisignum, O. zamoraensis. Auserdem wurden zwei Arten wiederbeschrieben, die in fruheren Revisionen nicht berucksichtigt werden konnten, namlich Opius levinotum Brues and Richardson und O. trimaculatus Spinola. Die Literatur uber die bereits fruher neu- oder wiederbeschriebenen Arten wird zitiert. Summary The present paper deals with a new taxonomic revision of the neotropic species of the pallipes-group of the genus Opius Wesmael. 38 species are summarized in the key for identification, and their distribution is indicated. The following 12 species are described as new: Opius barrosensis, O. campinaensis, O. cuencaensis, O. curtisignum, O. cuzcoensis, O. horcomollensis, O. johannis, O. laplatanus, O. longisignum, O. mediosignum, O. rufisignum, O. zamoraensis. Moreover, two species not treated in previous papers, e. g. Opius levinotum Brues and Richardson and O. trimaculatus Spinola, are redescribed. The literature concerning the species already described or redescribed previously is cited.

Renato C Bautista - One of the best experts on this subject based on the ideXlab platform.

  • oviposition response and development of the egg pupal parasitoid fOpius arisanus on bactrocera oleae a tephritid fruit fly pest of olive in the mediterranean basin
    Entomologia Experimentalis Et Applicata, 2002
    Co-Authors: Maurizio Calvitti, Riccardo Moretti, Marco Antonelli, Renato C Bautista
    Abstract:

    To date, information is wanting with regard to the use of new exotic parasitoids against olive fruit fly, Bactrocera (=Dacus) oleae (Gmelin) (Diptera: Tephritidae), a serious pest of olives Olea europaea L., in the Mediterranean basin. We investigated the oviposition response and developmental biology on B. oleae of FOpius (=Biosteres) arisanus (Sonan) (=Opius oophilus Fullaway) (Hymenoptera: Braconidae), an egg-pupal parasitoid of tephritid fruit flies, never tested before as a potential parasitoid of this host. Our results showed that olive fruits infested with B. oleae eggs exerted a relevant attraction to gravid F. arisanus and represented a stimulus for oviposition. Nevertheless they were not as attractive to female parasitoids as the Mediterranean fruit fly, Ceratitis capitata Wiedemann (Diptera: Tephritidae), eggs infested papaya fruits (Carica papaya L.). In our experimental conditions, F. arisanus completed development in B. oleae within 33 ± 1.7 days (males) and 35 ± 1.6 (females). Increases in host egg to female parasitoid ratios of 1:1, 5:1, 10:1 and 20:1 corresponded with decreases in the percentage of B. oleae parasitisation and host killing but corresponded also with increases in absolute parasitisation. Our findings are discussed in light of possibilities of utilising F. arisanus for biological control of olive fruit fly.

  • The fruit fly parasitoid FOpius arisanus: reproductive attributes of pre-released females and the use of added sugar as a potential food supplement in the field
    Entomologia Experimentalis et Applicata, 2001
    Co-Authors: Renato C Bautista, Ernest J. Harris, Roger I. Vargas
    Abstract:

    FOpius (= Biosteres) arisanus (Sonan) (= Opius oophilus Fullaway) (Hymenoptera: Braconidae) is an egg-pupal parasitoid of tephritid fruit flies. Small scale releases of F. arisanus were undertaken in coffee, Coffea arabica L., on the island of Kauai, to evaluate its potential for suppression of fruit fly populations. In conjunction with field releases, assays were conducted to determine the quality of pre-released parasitoids. In addition, the suitability of various sugars as potential food supplements in the field was evaluated. Spermathecal dissection showed that >70% of a total 1.7 million females released in 1998 and 1999 were successfully mated. Moreover, a sperm rating of 2.5–2.6 indicated that the spermathecae of inseminated females were 50% full. There were 85-137 matured eggs (mean =101.7±11.5) in the ovaries of mated or virgin females. When honey was replaced with ripe coffee and water, ripe coffee, or water alone, 10 days after emergence, females remained alive for another 5.5, 5.4, and 4.9 days, respectively. There was corresponding deterioration in the ovaries of gravid females. Mean eggs of honey-deprived females declined from >100 to

  • Implications of host mortality on the economics of FOpius arisanus (Hymenoptera: Braconidae) mass rearing
    BioControl, 2001
    Co-Authors: Ernest J. Harris, Renato C Bautista
    Abstract:

    FOpius (= Biosteres ) arisanus (Sonan) (= Opius oophilus Fullaway) is an egg-pupal parasitoid of tephritid fruit flies. Our breakthrough in the development of a laboratory-adapted strain of F. arisanus facilitated insectary rearing of parasitoids in large numbers. First colonized in captivity in 1989, F. arisanus has been reared routinely on the oriental fruit fly, Bactrocera (= Dacus ) dorsalis (Hendel), its natural host. Parasitization by F. arisanus results in the latent death of developing hosts. Host mortality data are presented in a life table to estimate cost of parasitization on the economics of F. arisanus mass rearing. Percent kills of 10, 32, and 76% exerted by F. arisanus on the egg, larval, and pupal stages of the rearing hosts, respectively, resulted in a mean parasitoid recovery of 23.6%. The production cost was estimated by integrating life table data with the costs of rearing supplies and materials and personnel-hours requirements. Production of 1 million parasitoid adults requires the exposure of 4.2 million B. dorsalis eggs (= propagation hosts). We estimated the cost of producing 1 million parasitoids to be $2,363.30 and identified the most expensive aspects of F. arisanus rearing. Recommendations for streamlining the rearing process to reduce costs are provided.

  • mass rearing of the tephritid fruit fly parasitoid fOpius arisanus hymenoptera braconidae 1
    Biological Control, 1999
    Co-Authors: Renato C Bautista, Noboru Mochizuki, Ernest J. Harris, John P. Spencer, Dwayne M Ichimura
    Abstract:

    Abstract FOpius (=  Biosteres ) arisanus (Sonan) (=  Opius oophilus (Fullaway)) (Hymenoptera: Braconidae), an egg-pupal parasitoid of tephritid fruit flies was successfully bred in captivity, resulting in the development of a laboratory-adapted strain. Subsequently, we developed a mass-rearing method that facilitated large scale production of F. arisanus for the first time. Over 13 months, nearly 10 million parasitoids were propagated on the oriental fruit fly, Bactrocera (=  Dacus ) dorsalis (Hendel). The rearing procedures and equipment used for mass production of F. arisanus are described.

Chen Xue-xin - One of the best experts on this subject based on the ideXlab platform.

Dwayne M Ichimura - One of the best experts on this subject based on the ideXlab platform.

  • mass rearing of the tephritid fruit fly parasitoid fOpius arisanus hymenoptera braconidae 1
    Biological Control, 1999
    Co-Authors: Renato C Bautista, Noboru Mochizuki, Ernest J. Harris, John P. Spencer, Dwayne M Ichimura
    Abstract:

    Abstract FOpius (=  Biosteres ) arisanus (Sonan) (=  Opius oophilus (Fullaway)) (Hymenoptera: Braconidae), an egg-pupal parasitoid of tephritid fruit flies was successfully bred in captivity, resulting in the development of a laboratory-adapted strain. Subsequently, we developed a mass-rearing method that facilitated large scale production of F. arisanus for the first time. Over 13 months, nearly 10 million parasitoids were propagated on the oriental fruit fly, Bactrocera (=  Dacus ) dorsalis (Hendel). The rearing procedures and equipment used for mass production of F. arisanus are described.

Robert A. Wharton - One of the best experts on this subject based on the ideXlab platform.

  • New species and host records of New World, mostly Neotropical, opiine Braconidae (Hymenoptera) reared from flower-infesting, stem-galling, and stem-mining Tephritidae (Diptera).
    ZooKeys, 2013
    Co-Authors: Robert A. Wharton, Allen L. Norrbom
    Abstract:

    New host records (all members of the family Tephritidae) are presented for 14 newly described species of opiine Braconidae from the neotropics and two previously described species, one from the neotropics and one from the Nearctic Region. Doryctobracon anneae Wharton, Opius baderae Wharton, O. baeblus Wharton, O. cablus Wharton, O. dablus Wharton, O. danielsae Wharton, O. gabriellae Wharton, O. godfrayi Wharton, O. marshi Wharton, O. nablus Wharton, O. pipitae Wharton, O. stecki Wharton, O. taramegillae Wharton, and O. yoderi Wharton are newly described. Hosts are newly recorded for the previously described species Opius nympha Fischer and O. peleus Fischer. A key is presented to Opiinae that have been reared from flower, stem, and leaf feeding tephritids in the New World. Host and host plant associations are discussed; a few of the tephritid host plant records are also new. Opius cosa (Fischer), is a comb. n.

  • An opiine Braconidae (Hymenoptera) reared from Richardiidae (Diptera) and recognition of a new species group of Opius s. l.
    ZooKeys, 2013
    Co-Authors: Robert A. Wharton, Sophia Daniels, Xanthe Shirley, Danielle Restuccia
    Abstract:

    A new species of opiine Braconidae, Opius rojam Daniels & Wharton, is described from Trinidad. The description is based in part on two individuals reared from Sepsisoma erythrocephalum infesting shoots of the grass Paspalum fasciculatum. This is the first record of members of the Opiinae attacking species in the dipteran family Richardiidae. The Opius ingenticornis species group is proposed and delineated to accommodate this and several putatively related species formerly included in Opius (Merotrachys), Opius (PendOpius), and Opius (IlicOpius). A key to the species of this group is provided. Descriptions and diagnoses are referenced to the Hymenoptera Anatomy Ontology.

  • New neotropical species of Opiinae (Hymenoptera, Braconidae) reared from fruit-infesting and leaf-mining Tephritidae (Diptera) with comments on the Diachasmimorpha mexicana species group and the genera LorenzOpius and TubiformOpius.
    ZooKeys, 2012
    Co-Authors: Robert A. Wharton, Lauren Ward, István Mikó
    Abstract:

    Four new species of opiine Braconidae are described from Mexico. These are Diachasmimorpha martinalujai Wharton reared from Rhagoletis infesting fruits of Crataegus spp., Diachasmimorpha norrbomi Wharton reared from Euphranta mexicana infesting fruits of Ribes pringlei, Eurytenes (Stigmatopoea) norrbomi Wharton reared from Trypeta concolor mining leaves of Barkleyanthus salicifolia and Eurytenes (Stigmatopoea) maya Wharton reared from Rhagoletis pomonella infesting apples and fruits of Crataegus spp. Morphological features of the first metasomal segment and occipital carina, useful for placement of these species, are discussed relative to the genera Diachasmimorpha, Eurytenes, LorenzOpius, TubiformOpius, and Opius s.l. Descriptions and diagnoses are referenced to the Hymenoptera Anatomy Ontology. The following represent new combinations: Diachasmimorpha hildagensis, LorenzOpius euryteniformis, and TubiformOpius tubibasis. Revised diagnoses are provided for Diachasmimorpha hildagensis, Diachasmimorpha mexicana, Diachasmimorpha sanguinea, Eurytenes (Stigmatopoea), LorenzOpius, LorenzOpius euryteniformis, TubiformOpius, TubiformOpius tubigaster, TubiformOpius tubibasis, Opius incoligma, and Opius rugicoxis. Two species groups are delineated within LorenzOpius and a key to species of Diachasmimorpha occurring in the New World is provided.

  • australian species of the genus Opius wesmael hymenoptera braconidae attacking leaf mining agromyzidae with the description of a new species from south east asia
    Australian Journal of Entomology, 2004
    Co-Authors: Sergey A. Belokobylskij, Robert A. Wharton
    Abstract:

    The species of Opius Wesmael that attack leaf-mining Agromyzidae in Australia are discussed, and a key provided for their separation. Opius cinerariae Fischer is redescribed based on specimens reared from Liriomyza chenopodii (Watt) (Agromyzidae), and its subgeneric placement is discussed in light of newly discovered morphological features. Opius (Opiothorax) chromatomyiae Belokobylskij & Wharton sp. n. is described from specimens reared from Chromatomyia horticola (Goureau) and Liriomyza huidobrensis (Blanchard) (Agromyzidae) in Malaysia, Indonesia and Vietnam. Opius insulicola Tobias nom. n. is proposed for Opius insularisTobias (1998), a junior primary homonym.

  • Australian species of the genus Opius Wesmael (Hymenoptera: Braconidae) attacking leaf‐mining Agromyzidae, with the description of a new species from South‐east Asia
    Australian Journal of Entomology, 2004
    Co-Authors: Sergey A. Belokobylskij, Robert A. Wharton
    Abstract:

    The species of Opius Wesmael that attack leaf-mining Agromyzidae in Australia are discussed, and a key provided for their separation. Opius cinerariae Fischer is redescribed based on specimens reared from Liriomyza chenopodii (Watt) (Agromyzidae), and its subgeneric placement is discussed in light of newly discovered morphological features. Opius (Opiothorax) chromatomyiae Belokobylskij & Wharton sp. n. is described from specimens reared from Chromatomyia horticola (Goureau) and Liriomyza huidobrensis (Blanchard) (Agromyzidae) in Malaysia, Indonesia and Vietnam. Opius insulicola Tobias nom. n. is proposed for Opius insularisTobias (1998), a junior primary homonym.