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1.
福建武夷山条大叶蝉属一新种(同翅目:大叶蝉科)   总被引:3,自引:2,他引:1  
本文记述条大叶蝉属1新种:指突条大叶蝉Atkinsoniella dactylia Yang et Li,sp.nov.。文中详细描记了新种的外部形态牲和雄虫外生殖器构造,并附主要特征图。  相似文献   

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海南大叶蝉科三新种(同翅目:叶蝉总科)   总被引:10,自引:2,他引:8  
记述了采自海南省的大叶蝉科Cicadellidae窗翅叶蝉属MileewaDistant2新种-无纹窗翅叶蝉Mileewalackstripasp.nov,和翼枝窗翅叶蝉Mileewaalarasp.nov,斑大叶蝉属AnatkinaYoung1新种-红条斑大叶蝉Anatkinarufistriata,sp.nov。模式标本保存在贵州农学院。  相似文献   

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本文记述大叶蝉科条大叶蝉属AtkinsoniellaDistant5新种及一中国新纪录种:黄条大叶蝉A.xanthovitta、黄斑条大叶蝉A.xanthonota、黑体条大叶蝉A.nigra、红斑条大叶蝉A.rubra、污黄条大叶蝉A.lactea及披纹条大叶蝉A.malasieiYoun。标本采自我国云南省。文中描述了新种、新纪录种的外部形态和雄性外生殖器构造特征,以及与近似种的区别。  相似文献   

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福建大叶蝉科一新记录属及三新种(同翅目:叶蝉总科)   总被引:2,自引:0,他引:2  
本文记述大叶蝉科1中国新记录属──暗大叶蝉属SeasogoniaYoung与1新种──红暗大叶蝉S.sanguineaKuohetzhuo,以及条大叶蝉属AtkinsoniellaDistant2新种──黑背条大叶蝉A.nigridorsumKuohetzhuo与红脉条大叶蝉A.rubrivenosaKuohetZhuo。均采自福建。  相似文献   

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耳叶蝉属四新种:(同翅目:耳叶蝉科)   总被引:1,自引:0,他引:1  
本文记述耳叶蝉科耳叶蝉属四新种:1.浅斑耳叶蝉Ledra pallida sp.nov.,2.片脊耳叶蝉Ledra lamella sp.nov.,3.黑纹耳叶蝉Ladra nigrolineata sp.nov.,4.明冠耳叶蝉Ledra hyalina sp.nov.。标本分别采自我国西藏、云南及安徽省。模式标本保存于安徽农学院。  相似文献   

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记述窗翅叶蝉属3新种,枝茎窗翅叶蝉Mileewabranchiuma,sp.nov黑尾窗翅叶蝉M.nigricaudasp.nov,和褐点窗翅叶蝉M.mirasp.nov,对它们的形态特征和雄性外生殖器构造作了详细描述,并附主要特科,中国新纪录种:乌苏窗翅叶蝉M.ussuricaAnufriev在本文中记载。  相似文献   

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本文记述耳叶蝉科耳叶蝉属四新种:1.浅斑耳叶蝉Ledrapallidesp.nov,2.片脊耳叶蝉Ledralamellasp.nov,3.黑纹耳叶蝉Ledranigrolineatasp.nov,4.明冠耳叶蝉Ledrahyalinasp.nov..标本分别采自我国西藏、云南及安徽省.模式标本保存于安徽农学院.  相似文献   

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本文记述中国缘脊叶蝉亚科脊翅叶蝉族1新属-丽斑叶蝉属Roxasellanagen.nov.及1新种-星茎丽斑叶蝉Roxasellanastellatasp.p.n.。  相似文献   

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本文记述缺突叶蝉属TrocnadellaPruthi3新种,即盾缺突叶蝉T.testaceasp.nov.;褐翅缺突叶蝉T.fuscipennissp.nov.;带纹缺突叶蝉T.fascianasp.nov.。详细描述每个新种的外部形态特征,并与近似种比较区别,附主要特征图。  相似文献   

10.
本文记述横脊叶蝉科Evacanthidae1新属,凸冠叶蝉属Convexanagen.nov.,3新种:黑额凸冠叶蝉Convexananigrifrontasp.nov.;白脊凸冠叶蝉Convexanaalbicarinatasp.nov.;红色凸冠叶蝉Convexanarufasp.nov.。详细描述新属的外部形态及雄性外生殖器特征,并与近似属OnukiaMatsumura1912相比较。  相似文献   

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Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.  相似文献   

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Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.  相似文献   

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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.  相似文献   

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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  相似文献   

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