针尾姬蜂属(膜翅目,姬蜂科)及一新种记述

报道在我国发现的针尾姬蜂属Pion Schiφdte,1839的种类:沁源针尾姬蜂P.qinyuanensis Chen,Shenget Miao,1998,宜丰针尾姬蜂,新种P.yifengensis sp.nov.。指出了新种与近似种的鉴别特征并附彩色特征图。     

寄生桦黑毛三节叶蜂的姬蜂科一中国新纪录种——日本恩姬蜂(膜翅目,姬蜂科)

报道在湖北省神农架发现的、寄生桦黑毛三节叶蜂Argesp.中国1新纪录种:日本恩姬蜂Endasys parviventris nipponicus(Uchida,1930)。     

Similar attractiveness of maize volatiles induced by Helicoverpa armigera and Pseudaletia separata to the generalist parasitoid Campoletis chlorideae

Campoletis chlorideae Uchida (Hymenoptera: Ichneumonidae), a major larval endoparasitoid of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), also attacks many other noctuid caterpillars. We investigated the attractiveness of H. armigera‐ and Pseudaletia separata (Lepidoptera: Noctuidae)‐infested maize [Zea mays L. (Poaceae)] plants to C. chlorideae, and analyzed the volatiles emitted from infested plants and undamaged plants. Considering the reported specific induction of plant volatiles by elicitors in the caterpillar regurgitant, we also tested the response of the parasitoid to mechanically damaged plants treated with caterpillar regurgitant or water and measured the volatiles released by these plants. In wind‐tunnel bioassays, C. chlorideae was strongly attracted to herbivore‐induced maize volatiles. Mechanically damaged plants, whether they were treated with caterpillar regurgitant or water, were more attractive to the parasitoid than undamaged plants. The parasitoid did not distinguish between maize seedlings infested by the two noctuid insects, nor did they show a difference in attraction to mechanically damaged plants treated with caterpillar regurgitant or water. Coupled gas chromatography–mass spectrometer (GC‐MS) analysis revealed that 15 compounds were commonly emitted by herbivore‐infested and mechanically damaged maize plants, whereas only two compounds were released in minor amounts from undamaged plants. Infestation by H. armigera specifically induced four terpenoids, β‐pinene, β‐myrcene, D‐limonene, and (E)‐nerolidol, which were not induced by infestation of P. separata and mechanical damage, plus caterpillar regurgitant or water. Two compounds, geranyl acetate and β‐sesquiphellandrene, were also induced by the infestation of H. armigera, but not by the infestation of P. separata. All treated maize plants released volatiles in significantly larger total amounts than did undamaged plants. Maize plants infested by H. armigera emitted greater amounts of volatiles than plants infested by P. separata. The treatment with caterpillar regurgitant resulted in larger amounts of volatile emission than the treatment with water did in mechanically damaged plants. The amounts of emissions of individual compounds were also different between differently treated plants.     

Parasitoids of Monochamus galloprovincialis (Coleoptera,Cerambycidae), vector of the pine wood nematode,with identification key for the Palaearctic region

The parasitoid complex associated with Monochamus galloprovincialis (Olivier), vector of the pine wood nematode, is discussed. Four species of the family Braconidae and one Ichneumonidae were found associated with Monochamus galloprovincialis in Portugal, namely Atanycolus denigrator (Linnaeus), Atanycolus ivanowi (Kokujev), Cyanopterus flavator (Fabricius), Doryctes striatellus (Nees) (Braconidae), and Xorides depressus (Holmgren) (Ichneumonidae). Atanycolus ivanowi, Atanycolus denigrator, Doryctes striatellus and Xorides depressus are new species for Portugal fauna, and Monochamus galloprovincialis is recorded as a new host of Xorides depressus. A key for determination of the ichneumonoid parasitoids of the pine sawyer is provided for the Palaearctic fauna.     

A new species of Cymodusa Holmgren, 1859 (Hymenoptera: Ichneumonidae: Campopleginae) from Turkey

Cymodusa (Cymodusa) propodeata sp. n. from Turkey is described and illustrated. It is distinguished from the similar C. (s. str.) oculator Dbar, 1985 by moderately narrowed head behind eyes, developed clypeal fovea, area superomedia not separated by carina from basal and petiolar area and coloration of the body.     

河南兜姬蜂属一新种(膜翅目:姬蜂科)

报道采自河南的兜姬蜂属Dolichomitus Smith 1新种：济源兜姬蜂Dolichomitus jiyuanensis Lin,sp．nov．。模式标本保存在国家林业局森林病虫害防治总站。     

长臀姬蜂属一新种(膜翅目,姬蜂科)

报道分布于中国的长臀姬蜂属Coleocentrus Gravenhorst,1829种类,其中含1新种:褐长臀姬蜂Coleocentrus fulvus sp.nov..描述了新种的形态特征,并与近似种做了比较,编制了中国已知种检索表.标本保存在国家林业局森林病虫害防治总站.