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1.
本文描述了采自中国西南地区的蠛蠓属Lasiohelea4新种,分别是采自四川的细小蠛蠓L.parvitassp.nov,竹林蠛蠓L.bombusa,sp.nov采自云南的山栖蠛蠓L.oreita,sp.nov.及采自西藏的孟氏蠛蠓L.mengi,sp.nov。模式标本保存于北京医学昆虫标本馆。  相似文献   

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本文记述铗蠓属蠛蠓亚属吸血蠓一种新种,浑江铗蠓Forcipomyia(Lasioheleahunjiangensissp.nov.,描述了成蠓的形态,并与近似种作鉴别比较。  相似文献   

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本文描述了尼泊尔蠛蠓新种的两性成虫的形态特征 ,以其纤长的口甲齿和宽而尖的雄性阳茎中叶为主要特征。但其口甲齿与发现于马来西亚的细齿蠛蠓 (LasioheleatenuidentisYuandWirth)很相像 ,而该蠓触须无感觉器窝 ,受精囊褐色 ,圆形 ,明显不同。  相似文献   

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记述了毛蠓属中国3新纪录种及蠛蠓属1新种,它们分别是:共同毛蠓Dasyhelea communis Kirffer、黄腹毛蠓Dasyhelea luteoventris Goetghebuer、黄色毛蠓Dasyhelea lutea Remm and Zhogolev和留坝蠛蠓Lasiohelea gubaensis Yu,Liu et Yan,sp.nov.,并首次描述了这3种新纪录毛蠓的蛹和幼虫特征.所有标本都存于医学昆虫标本馆.  相似文献   

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四川省毛蠓属二新种:双翅目:蠓科   总被引:3,自引:1,他引:2  
本文报导采自四川省的毛蠓二新种,即西部毛蠓D.occasus,sp.nov。和泸定毛蠓D.ludingensis,sp.nov。新种的模式标本保存在北京医学昆虫标本馆。  相似文献   

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中国蠓科昆虫(双翅目)区系分布概况   总被引:6,自引:0,他引:6  
虞以新 《生物学通报》2003,38(12):17-18
至今已查知全国共有蠓类4亚科39属1011种。叙述了我国各省区已知蠓类及其区系分布概况,鄂豫交界地带是东洋界和古北界蠓类种群的交汇带。吸血蠓类中,细蠓多见于西北荒漠地区,蠛蠓是南方湿润地区的优势种群。库蠓种类繁杂,南北方各有不同优势种群,北方蠓类群落构成的种群较简单,而优势种突出。南方蠓类群落构成的种群复杂,优势种不很突出。  相似文献   

7.
新疆天山毛蠓属二新种:双翅目:蠓科   总被引:2,自引:0,他引:2  
本文报道采自新疆天山的毛蠓属Dasyhelea2新种,分别为天山毛蠓D.tianshanasp.nov.和高山毛蠓D.montansp.nov。模式标本保存在北京医学昆虫标本馆。  相似文献   

8.
铗蠓属一新亚属及其二新种(双翅目:蠓科)   总被引:2,自引:0,他引:2  
记述发现于我国的铗蠓属Forcipomyia1新亚属--奇蠓亚属Atopomyia subg.nov.及其2新种:奇异铗蠓F.(Atopomyia)atopia,sp.nov.和山地铗蠓F.(Atopomyia)idaeus,sp.nov.。模式标本保存于北京医学昆早标本馆。  相似文献   

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《昆虫知识》2008,45(4)
中科院院士、中国蠓类权威专家虞以新教授日前在武夷山自然保护区发现并命名了一个蠓类新种———公东短蠓。虞以新教授此次共采获蠓类6属:毛蠓属、裸蠓属、铗蠓属、蠛蠓属、短蠓属和库蠓属。其中1种是原产于巴基斯坦的巴国短蠓,这是中国首次发现;1种为新种,被命名为公东短蠓。  相似文献   

10.
本文描述了蠓科异蠓族的湿蠓新属Medeobezzia,gen.n.及其模式种孤单湿蠓Medeobizzia singularis,sp.n.。模式产地为湖北省武当山麓,收藏于军事医学科学院医学昆虫标本馆。  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   

16.
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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