中国原(虫怱)科一新种和(虫怱)科一新种(蜻蜓目)

记述采自广东省原科1新种:华氏齿原Prodasineura huai,sp.nov.和采自浙江省科1新种:大磐山斑Pseudagrion daponshanensis,sp.nov.,模式标本保存于浙江自然博物馆昆虫标本室。     

包氏扇(虫忽)雌性记述(蜻蜒目:扇(虫忽)科)

本文记述包氏扇螅的雌虫,标本采自广东省海南岛兴峰的自然保护区。包氏扇螅 Drepanosticta brownelli(Tinkham),(图1-5) 雌性:体长37毫米,腹部长(连肛附器)35毫米,后翅长24毫米。 头部黑色,上唇基方二分之一,前唇基、上颚基部和颊均为象牙白色,触角黄褐色。 前胸黄色,背面有X形黑纹。合胸黑色,后胸前侧片有一象牙白色条纹,覆盖气门,后胸后侧片有一象牙白色条纹。     

中国隼(虫忽)科二新种(蜻蜓目:隼(虫忽)科)

记述采自海南省太阳隼属1新种:华氏太阳隼Heliocyphahuai,sp.nov.和采自贵州省印度隼属1新种:赤水印度隼Indocyphachishuiensis,sp.nov.。模式标本保存于浙江自然博物馆昆虫标本室。     

老挝河(虫忽)Calopteryx laosica Fraser—中国新纪录

河螅属Calopteryx我国已知六种:C.atrata Selys.C.atrocyana Fraser, C.coomani Fraser,C.melli Ris. C.grandaeva Selys及C.virgo Linnaevs.1983年,笔者在云南省采得老挝河螅Calopteryxlaosica Fraser 5 3,这样我国的河螅属记录增至七种. 老挝河螅是Fraser 1933所发表,当时他仅根据采自老挝的1(Muang Chao,Laso, about 1100m April     

Mesopodagrion属一个种的异名(蜻蜒目:山(虫忽)科)

本文报道Mesopodagrion yachowensis Chao,1953是Mesopodagrion tibetanum Maclachlan,1896的异名。文中详细列举该种的文献目录。现知该种广布于我国东洋区的陕西、四川、云南和浙江等省。前人称该种分布于西藏省,经更正后知系四川之误,应将西藏除名。 Mesopodagrion tibetanum Maclachlan的文献目录如下: Mesopodagrion tibetanum Maclachlan     

中国原(虫怱)科一新种和(虫怱)科一新种(蜻蜓目)

记述采自广东省原[虫怱]科1新种：华氏齿原[虫怱]Prodasineura huai sp.nov.和采自浙江省[虫怱]科1新种：大磐山斑[虫怱]Pseudagrion daponshanensis,sp.nov.,模式标本保存于浙江自然博物馆昆虫标本室。     

常见(虫非)蠊及其防制

(虫非)蠊,通称蟑螂,昔有石薑、滑虫、茶婆虫、负盘、香娘子之称,它是属于节股动物门,昆虫纲,(虫非)蠊目的昆虫。世界已知的约有3,500种,国内现有的报告亦达百余种,但室内常见的种类不多,有凹缘大蠊,美洲大蠊,澳洲大蠊,德国小蠊和东方蠊等5种。它们能携带伤寒、痢疾、霍乱、结核等细菌和阿米巴原虫包囊,又能损坏工业品、家用品和食物,是医学上及经济上的重要害虫。因此我们要认识它、彻底消灭它。     

刺齿(虫兆)属温州—新种及浙江分种检索表(弹尾纲:长角(虫兆)科)

记述刺齿(虫兆)属温州1新种:六毛刺齿(虫兆) Homidia hexaseta sp.nov.,该种的鉴别特征包括体色,下唇具光滑毛L1,头背部顶区具6根大刚毛,胸部第Ⅱ节具p4系列大刚毛,腹部第Ⅲ节中间具a2大刚毛,腹部第Ⅳ节具B6和Ae5-7大刚毛以及端节亚顶端齿远大于顶端齿.同时,本文还给出了浙江省刺齿(虫兆)...     

广东省负泥虫一新种(鞘翅目: 负泥虫科)

记述采自广东省连县大东山的负泥虫 1新种 L ilioceris lianzhouensis sp.nov.,模式标本存中山大学昆虫研究所标本室。     

中国香港(虫)目昆虫以及管(虫)属的研究((虫)目)

根据近年来在香港地区采集到的一些虫目昆虫,经整理鉴定及文献记录,记述香港虫目昆虫3科6属9种,其中有1新种树基管虫Sipyloidea shukayi, sp. nov..制定了分类检索表,结合新种的鉴别,整理了全国管虫属Sipyloidea 已知种,制定出8个种的检索表.新种模式标本保存在中国科学院上海昆虫研究所.     

A Unique Protease Cleavage Site Predicted in the Spike Protein of the Novel Pneumonia Coronavirus (2019-nCoV) Potentially Related to Viral Transmissibility

正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases     

Curcuminoids as inhibitors of thioredoxin reductase: A receptor based pharmacophore study with distance mapping of the active site

Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.     

Comparative morphology of the carpel in the Liliaceae: Hewardieae, Petrosavieae, and Tricyrteae

The young pistils in the melanthioid tribes, Hewardieae, Petrosavieae and Tricyrteae, are uniformly tricarpellate and syncarpous. They lack raphide idioblasts. All are multiovulate, with bitegmic ovules. The Petrosavieae are marked by the presence of septal glands and incomplete syncarpy. Tepals and stamens adhere to the ovary in the Hewardieae and the Petrosavieae but not in the Tricyrteae. Two vascular bundles occur in the stamens of the Hewartlieae and Tricyrtis latifolia. Ventral bundles in the upper part of the ovary of the Hewardieae are continuous with compound septal bundles and placental bundles in the lower part. Putative ventral bundles occur in the alternate position in the Tricyrteae and putative placental bundles in the opposite. position in the Petrosavieae. The dichtomously branched stigma in each carpel of the Tricyrteae is supplied by a bifurcated dorsal bundle.     

Enterovirus 71 3C proteolytically processes the histone H3 N-terminal tail during infection

Highlights
1. The N-terminal tail of histone H3 is specifically cleaved during EV71 infection.
2. Viral protease 3C is identified as a protease responsible for proteolytically processing the N-terminal H3 tail.
3. Our finding reveals a new epigenetic regulatory mechanism for Enterovirus 71 in virus-host interactions.     

Detection of EBV and HHV6 in the Brain Tissue of Patients with Rasmussen’s Encephalitis

Rasmussen’s encephalitis (RE) is a rare pediatric neurological disorder, and the exact etiology is not clear. Viral infection may be involved in the pathogenesis of RE, but conflicting results have reported. In this study, we evaluated the expression of both Epstein-Barr virus (EBV) and human herpes virus (HHV) 6 antigens in brain sections from 30 patients with RE and 16 control individuals by immunohistochemistry. In the RE group, EBV and HHV6 antigens were detected in 56.7% (17/30) and 50% (15/30) of individuals, respectively. In contrast, no detectable EBV and HHV6 antigen expression was found in brain tissues of the control group. The co-expression of EBV and HHV6 was detected in 20.0% (6/30) of individuals. In particular, a 4-year-old boy had a typical clinical course, including a medical history of viral encephalitis, intractable epilepsy, and hemispheric atrophy. The co-expression of EBV and HHV6 was detected in neurons and astrocytes in the brain tissue, accompanied by a high frequency of CD8⁺ T cells. Our results suggest that EBV and HHV6 infection and the activation of CD8⁺ T cells are involved in the pathogenesis of RE.     

Perinatal Vertical Transmission of Chikungunya Virus in Ruili,a Town on the Border between China and Myanmar

正Dear Editor,Chikungunya virus (CHIKV), an arbovirus in the family of Togaviridae, genus Alphavirus, is transmitted by the A.aegyptii or A. albopictus mosquito, and causes disease in humans characterized by fever, rash, and arthralgia (Silva and Dermody 2017; Suhrbier 2019). It was first reported in 1953 in Tanzania, and caused only a few outbreaks and sporadic cases in Africa and Asia in last century. However, in the epidemic in 2004, CHIKV acquired mutations that conferred enhanced transmission by the A. albopictus mosquito(Schuffenecker et al. 2006). Since then, it has successively caused outbreaks in Africa, the Indian Ocean, South East Asia, the South America, and Europe (Zeller et al. 2016).     

Development of a Novel Reverse Transcription Loop-Mediated Isothermal Amplification Method for Rapid Detection of SARS-CoV-2

In conclusion, the novel visual RT-LAMP assay is a simple, rapid, and sensitive approach for detection of SARS-CoV-2, and it is ready for application in primary care and community hospitals or health care centers, and even patients' own houses in response to the current SARS-CoV-2 epidemic because the assay does not require sophisticated equipment and skilled personnel. Furthermore, it is also ready to be used in fields for screening samples from wild animals and environments to facilitate the identification of potential intermediate hosts that mediate the cross-species transmission of SARS-CoV-2 from bats to humans.