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1.
本文描述了采自中国江苏的环角圆Yao属Papirioides亚属一新种:苏州环角圆Yao Ptenothrix(Papirioides)suzhouensis,sp.nov.。模式标本保存在南京大学生物系。  相似文献   

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本文记述无齿角蝉属NondenticentrusYuanetChou4新种,即:秦岭无齿角蝉N.qinlingensis,sp.nov.,长角无齿角蝉N.longicornis,sp.nov.,金黄无齿角蝉N.aureus,sp.nov.,和亮斑无齿角蝉N.fulgipunctatus,sp.nov.。模式标本保存于西北农业大学昆虫博物馆。  相似文献   

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本文记述了长Yao属西藏种新:黄氏长YaoEntomobryahuangi,sp.nov.。  相似文献   

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根据胸针球接子(Peronopsis)从早寒武世晚期至中寒武世晚期地质、地理的分布规律和演化趋向,将我国早期中寒武世地层与世界其它地区的同期地层进行了对比;此外,还建立了2新种:Peronopsistaijiangensissp.nov.,Peronopsisgedongensissp.nov.。  相似文献   

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记述采自中国长白山的鳞Yao属Tomocerus 1新种,长白山鳞Yao T.changbaishanensis,sp.nov.。模式标本保存于北京自然博物馆。  相似文献   

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中国湖南省刺齿Yao属一新种:弹尾目:长角Yao科   总被引:1,自引:1,他引:0  
本文描述了中国湖南省刺齿Yao属一新种:多毛刺齿YaoHomidia polyseta,sp.nov.。该种与叶毛刺齿YaoH.latifolia Chen & Li,1998相似,下唇基节均具叶状刚毛.但以头和身体各部分具有较多的刚毛可与后者相区别。  相似文献   

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西方记述无齿角蝉属NondenticentrusYuanetChou3新种,即:拟黑无齿角蝉N.paramelanicussp.nov  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   

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本文记述沟角叶蜂属2种,其中包括1新种:宽痣沟角叶蜂Casipteryx stigma,sp.nov.。文中详细描述了沟角叶蜂属已知2种雌雄两性开矿与区别,并给出了重要形态特征图、分布和分种检索表。长痣沟角叶蜂Casipteryx roborowskyi(Jakovlev)的雄性为首次描述。模式标本除另有注明外均保存于中南林学院环境资源系昆虫标本室。  相似文献   

10.
扁角跳小蜂二新种记述   总被引:1,自引:0,他引:1  
本文座蜡蚧中育出的扁角跳小蜂二新种,即食红市区扁跳小蜂Anicetus rubensi sp.nov.和毛扁角跳小蜂Anicets rariseturs sp.nov,前者育自红蜡蚧,后者育自日本蜡蚧、工蜡蚧和角蜡蚧。  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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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   

18.
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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