毒蛾科四个新种(鳞翅目:毒蛾科)

本文记述毒蛾科四个新种,模式标本保存于中国科学院动物研究所。 灰点翅毒蛾Cispia griseold新种 本新种与白点翅毒蛾Cispia cretacea Chao相似,但不同在于前翅浅棕灰,翅脉白色;前翅反面浅棕灰,翅后缘白色,中室末端具一白色肘形纹;而后者前翅白垩色,前缘、外缘和后缘略带浅黄棕色,前翅反面白垩色,前缘和外缘略带浅粉棕色,无斑纹。翅展雌蛾约     

款冬螟生物学特性观察

款冬螟Ostrintazealisvarialis（Bremer）是危害苍耳的主要害虫,幼虫蛀食叶脉、叶柄和秸秆。有关款冬螟的生物学特性,未见报道。199o年开始作者对该虫的生物学特性进行了观察。1形态特性成虫：雌蛾体长13mm,淡褐色,触角丝状,前翅三角形,翅长12mm,展翅29nun,赤黄色,有光泽;后翅淡黄色,腹部肥大,末端密生绒毛。雄蛾体长匕nun,淡黄色,触角丝状,前翅长13nun,展翅3OInm,翅面金黄色,亚前缘脉间褐色,翅基线褐色,中室有一肾状斑和一环状纹。后翅三角形,褐黄色,翅面有褐色点,外线线与亚外缘线锯齿状弯曲,腹部瘦尖。卵：块…     

封面照片:达摩凤蝶Papilio demoleus L.

本期封面为达摩凤蝶。该蝶翅表黑褐色,前、后翅外缘波状,边缘具1列淡黄色点,两性的翅基部均无尾状突。前翅背面基部有许多细碎淡黄色点,组成多条横线;亚外缘具9个成列的淡黄色斑;前缘至后缘有大小不同的淡黄色斑1 4个,其中3个在中室内的端半部。后翅亚外缘有成列的6个淡黄斑;前缘至臀缘有大形连片的淡黄色斑;近前缘中部有1个蓝黑色眼斑;臀角处有1个红色椭圆斑,该斑上部蓝色(雌蝶蓝斑较大)。前翅腹面近顶角具黄斑,基部有黄色带状纹;后翅腹面中域为棕色斑和黑点斑占据。国内分布于湖北、江西、浙江、福建、广东、广西、云南、贵州、台湾;国外…     

杂毛虫属(Cyclophragma)三新种记述——(鳞翅目:枯叶蛾科)

蛾色泽有深浅两型。深色型:焦褐色,触角梗节灰褐色,羽枝浅黄褐色,下唇须焦黄褐色;足跗节有5枚黄褐色花斑;前翅有4条黑色弧形横线,内侧一条不甚明显,中室端灰白点较小,但可识,亚外缘斑列黑色,由9枚斑点组成,诸斑点内侧和最后斑点四周衬灰     

云南枯叶蛾科二新种

1.昆明小毛虫Cosmotriche Kunmingensis Hou,新种(图1～3) ♂蛾触角鞭节灰色,羽枝灰黄色。头、胸、前翅灰白色略显粉红色,后翅灰色,腹灰褐色,翅基片和胸背两侧密被灰白色毛鳞。胸脊被灰褐色毛鳞,前翅中间呈明显的宽中带,其上宽下窄,中间紧缩。于中室端白点处折曲,中带内、外侧呈黑色线纹,下部呈明显的黑斑,宽带中部外侧呈浅黄褐色长形斑,中室端灰白色点明显,略呈三角状。顶角区灰黑色,亚外缘斑列中间模糊不清,仅两端呈明显的角状黑色斑。后翅灰色,中间具两条深灰色中带,内侧者长而色深,上端折曲,外侧者短而色淡。翅脉灰褐色,较明显。     

中国天蛾科新记录种

蜂形天蛾亚科Philampelinae峨眉曲纹天蛾 Panacra mydon Walker 1856 体长32毫米;翅展53毫米,头顶褐色,翅基片后缘金黄色,胸部及第一腹节背板土灰色,腹部灰色,第三到六节背板两侧杂有白鳞,前翅深灰褐色;顶角下方微内曲,外缘中部微弓出;中线略直,黑褐色向后缘渐宽,其外方有两条褐色锯齿状细线;中室端有一黑点;顶角有一黑褐色斜条,长约4毫米,伸达R_5,并平分顶角,R_4室及R_5     

三角辜小叶蝉—中国新记录

三角辜小叶蝉guriahana triangularis(Matsumura),中国新记录 Insect Matsumura:63.94 体基色淡黄,复眼褐色。 头顶稍稍向前尖出,中间长度与复眼间后缘长相等;头顶无条带等其他特殊斑纹。 前胸背板两侧深褐色,小盾片亦为深褐色,基部中间处有一小黄斑,前翅在中间有一很宽的褐纵带,覆盖了翅面的大部分;爪片在中部为一褐斑分开;端横脉周围色淡,前缘端横脉为褐带覆盖:翅端区在内缘和外缘有几块白色斑,后翅透明,大部分脉纹褐色。     

中国枯叶蛾科的新种

在编写中国经济昆虫志,鳞翅目枯叶蛾科(一)中国松毛虫过程中,发现6个新种1个新亚种。模式标本均保存在中国科学院动物研究所标本馆。1.秦岭松毛虫 Dendrolimus qinlingensis Tsai et Hou,新种(图版 Ⅰ:1—2;图1—3) 蛾体翅暗褐色,胸背毛棕褐色,触角梗节黄褐色,羽枝灰黄色,中室端白点长圆形,较明显;内、中、外横线和亚外缘斑列均为黑褐色,外横线外侧锯齿状(为本种明显的特徵),沿外横线外侧和中横线、亚外缘斑列内侧镶有白纹,亚外缘斑列两度外突较大,同时向内凹陷亦较深、切断内侧白纹形成二个黑斑,若从前位黑斑上缘划一直线,略与顶     

中国松毛虫属及其近缘属的新种(鳞翅目:枯叶蛾科)

本文报导了枯叶蛾科5新种,其中属于松毛虫属的3新种,其近缘的云毛虫属和杂毛虫属各1种,标本均采自秦岭山系。模式标本保存在中国科学院动物研究所。华山松毛虫Dendrolimus huashanensis Hou,新种(图版1-3,图1-3) 蛾翅展52—65毫米,体长23—28毫米;体色有深浅两型。浅色型:体翅黄褐色,触角梗节黄褐色,羽枝灰褐色。前翅中室端白点长圆形,小而明显,中、外横线双重,不明显,深灰褐色,位于外线外侧和中线内侧的横线纹,色泽较浅,亚外缘斑列黑褐色,外缘区灰黄褐色,中线与亚外缘间暗黄褐色,亚外缘斑列前3斑略呈长圆形,后4     

麦茎白秀夜蛾的初步观察

<正> 麦茎白秀夜蛾Leucapamea askoldis(Ober-thur)分布于日本、朝鲜及我国,但对其生物学缺乏报道。鉴于此,我们进行了一些观察。兹将结果简述如下。 形 态 特 征 成虫 翅展35毫米左右。头部棕褐色,触角丝状。颌片前缘灰、白鳞片混杂,中间为一黑褐色横带,后缘白色。肩板及胸部背面白色,腹部背面前4节污白色,向后端逐渐为灰褐色。前翅基部白色,有一暗褐色斜斑。前缘及外缘暗褐色、后部白色。顶角处有一白色近圆形斑,其     

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.     

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     

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.     

鸡传染性法氏囊病病毒研究进展

传染性法氏囊病(Infection bursal disease, IBD)是由鸡传染性法氏囊病毒(Infectious bursal disease virus, IBDV)引起的鸡和火鸡的一种高度接触性传染病,给世界各国的禽养殖业带来了巨大损失.自IBDV发现至今新的变异株不断出现,分子结构的改变导致病毒致病力的改变及宿主对疫苗应答的改变,使得传统的疫苗已不能控制其流行,因此各国学者对其基因组结构和功能进行了广泛深入的研究,并积极研制新型有效的疫苗以达到防治的目的.     

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.     

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).