西藏个木虱科三新种(同翅目:木虱总科)

报道了采自我国西藏地区的个木虱科的3个新种,并绘有详细特征图。     

中国点翅叶蝉属一新种：同翅目：叶蝉总科：耳叶蝉科

本文记述同翅目叶蝉总科耳叶蝉科点翅叶蝉属一新种：黑斑点翅叶蝉ＣｏｎｆｕｃｉｕｓｍａｃｕｌａｔｕｓＣａｉ。标本采自我国江西省庐山     

Cross‐resistance and possible mechanisms of chlorpyrifos resistance in Laodelphax striatellus (Fallén)

BACKGROUND: Laodelphax striatellus (Fallén) is a major pest of cultivated rice and is commonly controlled in China with the organophosphate insecticides. To develop a better resistance management strategy, a chlorpyrifos‐resistant strain of L. striatellus was selected in the laboratory, and its cross‐resistance to other insecticides and possible mechanisms of the chlorpyrifos resistance were investigated. RESULTS: After 25 generations of selection with chlorpyrifos, the selected strain of L. striatellus developed 188‐fold resistance to chlorpyrifos in comparison with the susceptible strain, and showed 14‐ and 1.6‐fold cross‐resistance to dichlorvos and thiamethoxam respectively. There was no apparent cross‐resistance to abamectin. Chlorpyrifos was synergised by the inhibitor triphenyl phosphate; the carboxylesterase synergistic ratio was 3.8 for the selected strain, but only 0.92 for the susceptible strain. The carboxylesterase activity of the selected strain was approximately 4 times that of the susceptible strain, whereas there was no significant change in the activities of alkaline phosphatase, acid phosphatase, glutathione S‐transferase and cytochrome P450 monooxygenase between the strains. The Michaelis constant of acetylcholinesterase, maximum velocity of acetylcholinesterase and median inhibitory concentration of chlorpyrifos‐oxon on acetylcholinesterase were 1.7, 2.5 and 5 times higher respectively in the selected strain. CONCLUSION: The high cross‐resistance to the organophosphate dichlorvos in the chlorpyrifos‐resistant strain suggests that other non‐organophosphate insecticides would be necessary to counter resistance, should it arise in the field. Enhanced activities of carboxylesterase and the acetylcholinesterase insensitivity appear to be important mechanisms for chlorpyrifos resistance in L. striatellus. Copyright © 2010 Society of Chemical Industry     

中国蛾蜡蝉科一新记录属一新种（同翅目：蜡蝉总科）

本文记述了蛾蜡蝉科Ｆｌａｔｉｄａｅ国内一新记录属和一新种，模式标本保存在西北农业大学昆虫博物馆     

中国的矢尖蚧属(Unaspis)研究(同翅目:盾蚧科)

文章简述了矢尖蚧属Ｕｎａｓｐｉｓ的研究概况,编制了该属在中国的种类检索表,记述了该属一新种,即南宁矢尖蚧Ｕｎａｓｐｉｓ ｎａｎｎｉｎｇｅｎｓｉｓ,ｓｐ．ｎ．模式标本存西北农业大学昆虫博物馆。     

苹果根爪绵蚜一些新型记述(同翅目:瘿绵蚜科)

对苹果根爪绵蚜（Aphidounguis pomiradicicola Zhang etHu,1999)的干母（在原生寄主榆树上）,有翅干雌（原生寄主上的有翅孤雌蚜）,无翅侨蚜（次生寄主苹果树上的无翅孤雌蚜）,有翅性母（次生寄主上的有翅孤雌蚜）,雌雄性蚜（在原生寄主上）,卵（在原生寄主上）等各型成体均进行了描述,除有翅性母外,其余各型均为首次记述,所有研究用标本均保存在中国科学院动物研究所昆明标本馆内。     

祁连山自然保护区同翅目昆虫种类及生态特征调查

于1994~2004年期间,通过林间调查采集标本鉴定、查阅历史资料,查对有关单位标本等方法,对祁连山保护区同翅目(Homoptera)昆虫种类作了全面调查,整理记录同翅目昆虫14科72种,其中:蝉科4种、沫蝉科3种、角蝉科1种、叶蝉科15种、木虱科5种、球蚜科3种、绵蚜科7种、大蚜科7种、蚜科8种、绒蚧科1种、硕蚧科3种、蚧科6种、盾蚧科8种、粉蚧科1种。查清了它们的分布、优势种及其危害状况。     

李缘刺蜡蚧生物学及防治措施研究

李缘刺蜡蚧是李树的重要害虫,在昆明地区１年发生１代,以２龄若虫在枝条上越冬,每头雌虫产卵量平均为６００粒,若虫２龄,１龄若虫在叶片上取食,２龄若虫在１￣２年生枝条上固定,直至进入成虫期。     

叶蝉科四新种(同翅目:叶蝉总科)

本文记述采自我国西北地区以及土库曼斯坦叶蝉科昆虫４新种：葛氏片角叶蝉ＩｄｉｏｃｅｒｕｓｋｕｏｈｉＣａｉ,新疆环茎叶蝉ＣｉｒｃｕｌｉｆｅｒｘｉｎｊｉａｎｇｅｎｓｉｓＣａｉ,柽柳大片叶蝉ＭｅｇａｌｏｐｓｉｕｓｔａｍａｒｉｃｉｕｓＣａｉ,褐尾柽柳叶蝉ＴａｍａｒｉｃｅｌａｆｕｓｃｕｌａＣａｉ,该４新种分别采自柽柳属植物、沙枣和盐生草上,它们以刺吸汁液的方式为害以上植物。模式标本保存在安徽农业大学昆虫标本室。