Egg Deposition Behavior in the Haplodiploid Sawfly Athalia rosae ruficornis Jakovlev (Hymenoptera: Symphyta: Tenthredinidae)

The egg deposition behavior of the turnip sawfly, Athalia rosae (Hymenoptera: Symphyta), is described. Both unmated and mated females lay eggs individually inside of fresh young leaves of cruciferous plants. During an oviposition event, females exhibit a distinct pause in abdominal contractions just before the actual egg deposition act. Unmated females show a longer pause (11.31 s on average) than mated females (4.38 s on overall average). By employing an eye color mutation, the sex of the eggs laid by females was ascertained. Females mated once lay mostly fertilized (diploid female) eggs initially but begin to lay a considerable number of unfertilized (haploid male) eggs later in life. The laying of an unfertilized egg is associated with a longer pause (6.98 s on average) than the laying of a fertilized egg (3.76 s on average). These results are in contrast to previous reports on apocritan Hymenoptera, where the presence of a pause or a longer pause during oviposition was associated with the deposition of fertilized eggs rather than unfertilized eggs. The possibility that mated Athalia rosae females control fertilization and its implications for sex allocation strategies are discussed.     

大膜叶蜂属分类研究（膜翅目：叶蜂亚目：蕨叶蜂科）

记述中国新记录属大膜叶蜂属1新种：紫蓝大膜叶蜂Bornea purpurata,sp．nov．。该属分布于亚洲东南部,仅知模式种1种。新种与模式种的主要区别是：头胸部蓝紫色,腹部2-5节黄色,触角全部黑色,足大部黑色,爪齿很长大。编制了分种检索表,绘制了新种形态特征图。文中还简要讨论了大膜叶蜂属与近缘属的鉴别特征。模式标本保存于中国科学院动物研究所。     

中国稀切叶蚁属系统分类研究(膜翅目,蚁科)

记载中国稀切中蚁属Oligomsrmex Mayr18种,其中描述8新种。分别编制了兵蚁和工蚁的检索表。评论了该属中国种类的分类历史。18个已知种依是卷须稀切叶蚁O.capreolus Wheeler,高结稀切叶蚁O.altinodus sp.nov,弯刺稀切叶蚁O.curvispinus sp.nov,条纹稀切叶蚁O.striatus sp.nov,尖刺稀切叶蚁O.acutispinus sp.nov,惠勒稀切叶蚁O.wheeleri Ettershank,钝齿稀切叶蚁O.obtusi-dentus sp.nov,双角稀切叶蚁O.bihornatus sp.nov,多音稀切叶蚁O.polyphemus Wheeler,邵氏稀切叶蚁O.sauteri Forel,香港稀切叶蚁O.taiponicus Wheeler,直背稀切叶蚁O.rectidorsus sp.nov,湖南稀切叶蚁O.hunanensis Wu et Wang,纹头稀切叶蚁O.reticapitus sp.nov,拟亮稀切叶蚁O.pseudolusciosus Wu et Wang,光亮稀切叶蚁O.lusciosus Wheeler,江西稀切叶蚁O.jiangxiensis Wu et Wang,阿美稀切叶蚁O.amius Forel。     

Variation in encapsulation sensitivity of Cotesia sesamiae biotypes to Busseola fusca

Many braconid wasp species inject polydnaviruses to overcome their host's immune system. In the species Cotesia sesamiae, two biotypes exist that differ in their ability to develop in the host Busseola fusca. The biotype from coastal Kenya is infected with Wolbachia and is not able to develop in larvae of B. fusca, whereas the uninfected inland biotype of this wasp can develop in B. fusca. The genetic transmission of the developmental ability was studied through a series of genetic crosses and superparasitization experiments. The Wolbachia infection of the coastal type did not play a role in the encapsulation response of the host. Experiments show that the polydnaviruses of the wasps could not prevent the encapsulation of the coastal parasitoid eggs. Most likely, larval characteristics such as surface proteins played a more important role in the encapsulation response of the host even in the presence of a functional polydnavirus.     

尖角赤眼蜂属一新种及折脉宽翅赤眼蜂雌性记述(膜翅目:赤眼蜂科)

报道寄生拟隐脉叶蝉Sophonia spp.卵的尖角赤眼蜂属1新种,隐脉叶蝉赤眼蜂Hispidophila sophoniae sp.nov.,同时首次描述折脉宽翅赤眼蜂Ufens rimatus Linr的雌性特征,所有研究标本已制片,保存福建农林大学生物防治研究所。     

寄生于美国白蛾幼虫的茧蜂二新种(膜翅目:茧蜂科)

记述了寄生于美国白蛾幼虫的2种茧蜂新种：白蛾孤独长绒茧蜂Dolichogenidea singularis Yang et You,sp.nov.,单个内寄生于寄主2－3龄幼虫：白蛾聚集盘绒茧蜂Cotesia gregalis Yang et Wei,sp.nov.,群集内寄生于寄主老龄幼虫,这2种寄生蜂的自然寄生率均为6％左右,在生物防治上具有良好的应用前景。     

膜翅目昆虫干标本的基因组DNA提取

提出了膜翅目昆虫干标本基因组DNA的提取方法,通过对实验结果和所测得的基因片段（28S D2 rDNA)的分析,表明该方法可行。     

中国巨胸小蜂属两新记录种（膜翅目：小蜂总科：巨胸小蜂科）

记录中国巨胸小蜂属Perilampus Latreille 2新记录种:诺巨胸小蜂Perilampus noemi Nikol’skaya, 1952和螟巨胸小蜂Perilampus nola Nikol’skaya, 1952。提供了形态描述、分布及形态特征图,并提供了分种检索表。研究标本保存于中国科学院动物研究所动物标本馆。     

中国隆痣短柄泥蜂属研究及二新记录种记述（膜翅目：方头泥蜂科）

记述我国已知的隆痣短柄泥蜂属Carinostigmus Tsuneki 9种,其中包括2中国新记录种:脉隆痣短柄泥蜂Carinostigmus costatus Krombein, 1984,以及弯柄隆痣短柄泥蜂Carinostigmus maior (Maidl, 1925)。编制了中国隆痣短柄泥蜂属已知种类检索表。