13 research outputs found

    The Species of Rhimphoctona (Xylophylax) (Hymenoptera: Ichneumonidae: Campopleginae) Parasitizing Woodborers in China

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    Four species of Rhimphoctona (Xylophylax) collected from P. R. China are reported. Two of them are new to science: Rhimphoctona (Xylophylax) maculifemoralis Luo and Sheng, sp.nov. reared from Tetropium castaneum (Linnaeus), and Rhimphoctona (Xylophylax) immaculata Luo and Sheng, sp.nov. One is a new record for China, R. (Xylophylax) rufocoxalis (Clément 1924) reared from T. castaneum (Linnaeus). The other is R. (Xylophylax) lucida (Clément 1924) reared from Monochamus saltuarius Gebier, Tetropium gabrieli Weise and Asemus sp. A key to species known in China is provided

    Tephrochronology

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    Tephrochronology is the use of primary, characterized tephras or cryptotephras as chronostratigraphic marker beds to connect and synchronize geological, paleoenvironmental, or archaeological sequences or events, or soils/paleosols, and, uniquely, to transfer relative or numerical ages or dates to them using stratigraphic and age information together with mineralogical and geochemical compositional data, especially from individual glass-shard analyses, obtained for the tephra/cryptotephra deposits. To function as an age-equivalent correlation and chronostratigraphic dating tool, tephrochronology may be undertaken in three steps: (i) mapping and describing tephras and determining their stratigraphic relationships, (ii) characterizing tephras or cryptotephras in the laboratory, and (iii) dating them using a wide range of geochronological methods. Tephrochronology is also an important tool in volcanology, informing studies on volcanic petrology, volcano eruption histories and hazards, and volcano-climate forcing. Although limitations and challenges remain, multidisciplinary applications of tephrochronology continue to grow markedly

    <i>PTYCHOPSIS PHALARA</i>, A NEW GENUS AND SPECIES OF SOUTH AMERICAN BANCHINAE (HYMENOPTERA: ICHNEUMONIDAE)

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    AbstractPtychopsis phalara new genus, new species of Banchinae from Ecuador is described and figured. Reasons for placement of the genus in the tribe Lissonotini are discussed.</jats:p

    <i>PTYCHONEURA</i> (DIPTERA) EGGS ON THE THORAX OF ADULT <i>RHOPALUM CLAVIPES</i> (HYMENOPTERA: SPHECIDAE) IN NORTH AMERICA

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    Smith (Day and Smith 1980) identified mature dipteran eggs attached to the thorax of adult females of European Rhopalum clavipes (L.) (Hymenoptera: Sphecidae) as Ptychoneura minuta (Fallén) (Sarcophagidae: Miltogramminae). R. clavipes is widespread in North America (introduced) but examination of previously collected specimens, a literature search, and discussions with specialists (H. K. Townes, American Entomological Institute, Ann Arbor, Michigan and G. E. Shewell, Biosystematics Research Institute, Ottawa, Canada) indicated that this behaviour had not previously been recorded in North America.</jats:p

    Burrowing Behaviour in Adult Cardiophorus cardisce (Say) (Coleoptera: Elateridae)

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    Volume: 33Start Page: 129End Page: 13

    TWO NEW PALEARCTIC SPECIES OF SESIOPLEX VIERECK (HYMENOPTERA : ICHNEUMONIDAE) INCLUDING PHYLOGENY, ZOOGEOGRAPHY AND A KEY TO THE WORLD SPECIES

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    Volume: 20Start Page: 166End Page: 17

    STRIDULATION IN <i>MEROPE TUBER</i> (MECOPTERA: MEROPEIDAE)

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    AbstractA stridulatory apparatus consisting of the juga of the forewings and specialized areas of the metanotum of both sexes of Merope tuber Newman (Mecoptera: Meropeidae) is described and illustrated. The sounds produced are discussed in light of their possible role in defence and intraspecific communication. This is the first verified instance of stridulation in the Mecoptera.</jats:p
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