陕西的金鹬虻属五新种：双翅目：鹬虻科

双翅目的鹬虻科(Rhagionidae)成虫和幼虫均为捕食性的昆虫,金鹬虻属(Chrysopilus)的种类有些捕食蝗卵、象虫幼虫等而甚有益,国外曾用于生物防治。金鹬虻属为本科的一个大属,已知270余种。我国除台湾省有9种外,仅东北地区记录过一种,最近我们研究了云南和广西的标本又增加了11新种;本文记述陕西的5个新种,有的也分布于甘肃、宁夏和山西等地。新种的模式标本保存在我校昆虫标本室,三斑金鹬虻的一对副模分藏在西北农业大学昆虫博物馆。周氏金鹬虻则以周尧教授的姓氏来命名,感谢他对后辈的热情栽培,对他表示崇高的敬意。     

云南的金鹬虻属五新种（双翅目：鹬虻科）

本文报道了在云南发现的金鹬虻属五新种,并与已发表种作了必要的比较。     

广西金鹬虻属五新种(双翅目:鹬虻科)

双翅目短角亚目(Brachycera)的鹬虻科(Rhagionidae或Leptidae)多中小型种,足细长,喜潮湿环境或在水边,故以鹬(音玉,长足水鸟)为名,拉丁学名均源于希腊词rhagio(一种蜘蛛)、lept(细长)也指足的特点。鹬虻科为捕食性昆虫,多以其他双翅目昆虫为食,极少数有吸血的习性;幼虫生活在树皮下、朽木中、土壤内、粪肥里或水中,捕食     

华东地区的鹬虻科三新种（双翅目：短角亚目）

本记述了华东地区的鹬虻科(Rhagionidae)三新种。分别属于鹬虻属Rhagio和金鹬虻属Chrysopilus,模式标本保存在北京农业大学昆虫标本室。     

贵州茂兰鹬虻科一新种：（双翅目：短角亚目）

双翅目短角亚目(Brachycera)的鹬虻科(Rhagionidae)多为中小型昆虫。足细长,翅常具斑纹,腹部较长;生活在水域附近,喜在阴湿的环境、甚至小雨中活动。成虫和幼虫多为捕食性,有些种类在国际上已用作生物防治。鹬虻科世界已知约600种,我国过去只有外国学者记载过10种,其中9种在台湾,另1种为记载于东北的日本种。近年来,我们开展此科分类研究,已陆续报道了浙江、湖北、广西、云南、西藏、内蒙及     

云南虻属一新种(双翅目:虻科)

记述了虻属１新种－景洪虻,模式标本保存在北京军事医学科学院。     

中国螳舞虻属五新种(双翅目:舞虻科)

螳舞虻属 Hemerodromia Meigen为舞虻科一大属,全世界已知63种,分布于世界各地,我们也陆续记述了我国8新种。本文又记述了我国5新种,模式标本均保存在北京农业大学昆虫标本室。     

中国虻属种类检索表（双翅目：虻科）

虻科昆虫是重要吸血害虫,全世界约4230种,我国已知虻类达400多种。我国虻科共记载10个属,其中虻属Tabanus、斑虻属Chrysops、麻虻属Haematopota和瘤虻属Hybomitra的种类最多,占我国己知种的百分之九十以上。在以上4个属中,尤以虻属的种类最多,近200种。虻属的种类体态特征变异最大,在分类鉴定上有很大的困难。国外有的专家如Olsufjev、Ta-     

中国金长足虻属五新种及种检索表（双翅目：长足虻科）

本文记述金长足虻属Chrysosoma 5新种:大明山金长足虻C.damingshanum sp.nov.,指突金长足虻C.digitatum sp.nov.,长芒金长足虻C.longum sp.nov.,铜壁关金长足虻C.tongbiguanum sp. nov.,和周氏金长足虻C.zhoui sp. nov.。编制该属中国种类的检索表。     

中国短角水虻属研究（双翅目：水虻科）

短角水虻属ＯｄｏｎｔｏｍｙｉａＭｅｉｇｅｎ为水虻科一大属,全世界已知近２１０种,中国记载过１２种。本文对中国短角水虻属作了综述性总结,记载了５新种（双斑短角水虻Ｏｄｏｎｔｏｍｙｉａｂｉｍａｃｕｌａｔａ,贵州短角水虻Ｏ．ｇｕｉｚｈｏｕｅｎｓｉｓ,中华短角水虻Ｏ．ｓｉｎｉｃａ,黑盾短角水虻Ｏ．ｕｎｉｎｉｇｒａ,杨氏短角水虻Ｏ．ｙａｎｇｉ）,同时对４已知种进行了再描述,并编制了中国已知种类的检索表。新种的模式标本存于北京农业大学昆虫标本馆。     

Entwicklungsgeschichte und Ultrastruktur von Pollenkitt und Exine bei nahe verwandten entomophilen und anemophilen Angiospermensippen derAlismataceae,Liliaceae, Juncaceae,Cyperaceae, Poaceae undAraceae

Some closely related members of the monocotyledonous familiesAlismataceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae andAraceae with variable modes of pollination (insect- and wind-pollination) were studied in relation to the ultrastructure of pollenkitt and exine (amount, consistency and distribution of pollenkitt on the surface of pollen grains). The character syndromes of pollen cementing in entomophilous, anemophilous and intermediate (ambophilous or amphiphilous) monocotyledons are the same in principal as in dicotyledons. Comparing present with former results one can summarize: 1) The pollenkitt is always produced in the same manner by the anther tapetum in all angiosperm sub-classes. 2) The variable stickiness of entomophilous and anemophilous pollen always depends on the particular distribution and consistency of the pollenkitt, but not its amount on the pollen surface. 3) The mostly dry and powdery pollen of anemophilous plants always contains a variable amount of inactive pollenkitt in its exine cavities. 4) A step-by step change of the pollen cementing syndrome can be observed from entomophily towards anemophily. 5) From the omnipresence of pollenkitt in all wind-pollinated angiosperms studied one can conclude that the ancestors of anemophilous angiosperms probably have been zoophilous (i.e. entomophilous) throughout.

     

Identification and Characterization of the First Equine Parainfluenza Virus 5

正Dear Editor,Parainfluenza virus 5 (PIV5), known as canine parainfluenza virus in the veterinary field, is a negative-sense,nonsegmented, single-stranded RNA virus belonging to the Paramyxoviridae family (Chen 2018). The virus was first reported in primary monkey kidney cells in 1954 (Hsiung1972), then it has been frequently discovered in various     

Pathogenic Characterization and Full Length Genome Sequence of a Reassortant Infectious Bursal Disease Virus Newly Isolated in Pakistan

<正>Dear Editor,Infectious bursal disease (IBD) is one of the most important diseases of the poultry. The IBD virus (IBDV), a nonenveloped virus belonging to the Birnaviridae family with a genome consisting of two segments of double-stranded RNA (segments A and B), targets B lymphocytes of bursa of Fabricious leading to immunosuppression. In Pakistan,poultry farming is the second biggest industry and IBD is the second biggest disease threating the poultry sector.However, there is limited genome information of IBDV