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1.
喙蚤蝇属TrophithaumaSchmitz是一形态特异的类群。其雌性种类口上片延长,喙长,腹部第4-6背板特化成腺体。目前全世界仅记载6种。我国只记载1种(刘广纯等,1993)。本文描述1新种。模式标本存于沈阳农业大学植保系昆虫标本室。黄腰喙蚤蝇TrophithaumagastroflavidumLiu,新种雌:体长2mm。额黑色,有光泽。触角第3节黑色,球形;芒0.6mm,具较长绒毛。下颚须黑色,具短鬃。胸背板和侧板下半部黑色;侧板下半部浅黄色。小盾片鬃l对,短毛1对。腹部第1节浅黄,其它节黑色。第Ⅳ-Ⅵ背板高度特化。翅长1.8mm;前缘脉指数0.58,各段比2:1.6:1,前缘脉纤毛0.04mm。腋区鬃3根,平衡棒浅黄。前、中足浅褐,后足深褐。中足栅毛列达胫节2/3;后足胫节栅毛列完整,具后背纤毛列。正模:♀,云南勐养,1991-Ⅵ-8,刘广纯采。  相似文献   

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本文首次较系统地报道了中国弧蚤蝇属StichillusEnderlein种类,共描述蚤蝇7种,其中包括5新种,毛尾弧蚤蝇S.polychaetous,尖突弧蚤蝇S.acuminatus,疣尾弧蚤蝇S.tuberculosus,刺鞘弧蚤蝇S.spinosus和圆尾弧蚤蝇,S.orbiculatus和1个中国新记录种,日本弧蚤蝇S.japonicus(Matsumura)文中应用了雄外生殖器特征,编制  相似文献   

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本文记述于辽宁朝阳市采到的棘蝇属1新种:辽西棘蝇Phaonialiaoshiensis sp.nov。模式标本存辽宁朝阳市卫生防疫站。  相似文献   

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本文记述狭臀蚤属Stenischia Jordan,1932一新种,鄂西狭臀蚤Stenischia exiensis sp.nov.采自湖北省西北部神农架林区的短属鼠句Anourosorex squamipes squamipes、川鼠句Blarinella quadratiicauda griselda和大林姬鼠Apodemus speciosus体上,正模标本♂和配模标本♀保存于福建医学昆虫研  相似文献   

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五指异蚤蝇Megaselia wuzhiensis,新种(图1~3) 雄性:额宽0.42mm,黑色,稀布细毛,纵沟细。触角上鬃4根,下对稍短;上对和下对间距分别是额宽的1/4和1/6。前额间鬃低于前额眶鬃及上触角上鬃,距眼缘和纵沟的距离比为1:3~1:2。后额间鬃低于后额眶鬃,四根鬃等距排列。触角第三节黑褐:芒亚端生,具微毛。下颚须黄色,具鬃5~7根。胸黑色。背中鬃2根;小盾片鬃2根,小毛2根:中侧片具毛,缺单鬃。翅长2.6mm。前缘脉指数0.53,各段比2.6:2.9:1,纤毛(最长)0.:24mm。腋区鬃3~6根。平衡棒黄褐色。足褐色,前足胫节0.68mm,跗节细长,各节长大于宽。中足胫节栅毛列伸达胫节端部1/5;后背纤毛7~9根。前背纤毛弱。后足股节1.2mm,腹缘细毛8~12根。胫节栅毛列完整,后背纤毛9~11根,强大:缺前背纤毛。腹部暗黑。背板Ⅱ和Ⅵ较长,其余背板近等长。背板稀被毛,两侧和后缘较多。尾器黑褐色,生殖背板两侧中部具鬃状毛;端部具小毛。肛管黄褐色。体长2.13~2.38mm。 正模:♂,海南五指山,1992—Ⅳ-16,刘广纯、王敏采:副模:5♂♂,同正模。 本种与缅甸产的M.atricornis Beyer相似,但后者前缘脉第二段短于第一段,额前侧鬃低于上触角上鬃。新种模式标本存于沈阳大学生物与环境工程学院标本室。  相似文献   

6.
中国点池蝇属一新种:双翅目:蝇科   总被引:4,自引:0,他引:4  
本文记述我国点池蝇属1新种:山西点池蝇Spilogonashanxiensissp.nov.。  相似文献   

7.
记述中国寒蚤蝇属Triphleba Rondani 1新种:壳叶寒蚤蝇Triphleba conchiformis sp. nov.。本新种缺R2+3,其贝壳状侧尾叶区别于本属其它种。模式标本存放于沈阳大学城市有害生物治理与生态安全辽宁省重点实验室。  相似文献   

8.
古蚤属一新种记述(蚤目:多毛蚤科)   总被引:1,自引:1,他引:0  
本文记述采自经省神农架林区古蚤属Palaeopsylla Wagner,1903-新种,巫山古蚤Palaeopsylla wushanensis sp.nov.,模式标本存于湖北省医学科学院寄生虫病研究所。  相似文献   

9.
朝鲜叉蚤一新亚种记述:(蚤目:多毛蚤科)   总被引:3,自引:0,他引:3  
本文记述了采自湖北省神农架林区叉蚤属Doratopsylla的一新亚种,命名为朝鲜叉蚤湖北亚种,新亚种Doratopsylla coreana hubeiensis ssp.nov.标本存于湖北省医学科学院寄生虫病研究所。  相似文献   

10.
记述采自海南的栓蚤蝇属Dohrniphora Dahl 1新种:密齿栓蚤蝇Dohrniphora densilinearis sp. nov.。新种与D. eilogoensis Disney相似,但后足腿节基部栓状感器大小相等且呈直线排列,可以区分。模式标本藏于沈阳大学城市有害生物治理与生态安全辽宁省重点实验室。  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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