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1.
记述采自我国四川省九寨沟和湖北省神农架自然保护区的圆胸隐翅虫属Tachinus,圆胸隐翅虫亚属Tachinus 1新种——东洋圆胸隐翅虫Tachinus(Tachinus)parasibiricus,sp.nov.。该新种与分布于古北区的Tachinus(Tachinus)sibiricusSharp,1888在颜色和外部形态上很相似,但根据雄性生殖器侧叶近端部无缢痕,端部l/3处明显变厚;雌性第8背板中叶之间凹入明显较浅等特征可与后者区分。正模:♂,四川省九寨沟,2001-Ⅶ-27,李利珍、赵梅君采。副模:7♂♂9♀♀,同正模;2♂♂,湖北省神农架金猴岭,2002-Ⅷ-04,李利珍、汤亮采。模式标本保存在上海师范大学生命与环境科学学院生物系昆虫标本室。  相似文献   

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记述采自我国浙江省龙王山自然保护区和天目山自然保护区的盗隐翅虫属Lesteva 1新种——黄盗隐翅虫Lesteva ochra,sp.nov.。新种与Rougemont(2000)记载于同一产地的Lesteva elegantula在斑纹上较相似,但根据体形的差异可与后者区分;新种在体形上与记载于同一产地的Lesteva flavopuctata较相似,但根据阳茎的侧叶短于中叶可与后者区分;新种的阳茎形状与记载于同一产地的Lesteva submaculata较相似,但侧叶内侧没有柔毛可与后者区分。正模:♂,浙江省龙王山,2004-Ⅳ-24,朱礼龙采;副模:1♂,2♀♀,采集地点同正模,2004-Ⅳ-23,汤亮采;1♀,采集地点及日期同正模,胡佳耀采;1♂,1♀,浙江省临安市天目山,2001-Ⅴ-02,宋晨祖采。  相似文献   

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记述中国刺膝螽属Cyrtopsis Bey-Bienko,19621新亚属和1新种,制作了亚属及种的检索表,模式标本保存在中国科学院上海昆虫博物馆。  相似文献   

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A new pselaphine species, Colilodion thienmu n. sp., is described from Mt. Bach Ma in Central Vietnam. SEM photographs of this species are provided and morphological notes are given in this study.  相似文献   

5.
Y Chromosome Evolution in the Subgenus Mus (Genus Mus)   总被引:1,自引:5,他引:1       下载免费PDF全文
P. K. Tucker  B. K. Lee    E. M. Eicher 《Genetics》1989,122(1):169-179
A 305 base pair DNA sequence isolated from the Y chromosome of the inbred mouse strain C57BL/10 was used to investigate the pattern and tempo of evolution of Y chromosome DNA sequences for five species in the subgenus Mus, including Mus spretus, Mus hortulanus, Mus abbotti, Mus musculus and Mus domesticus. Variation in hybridization patterns between species was characterized by differences in fragment lengths of both intensely and faintly hybridizing fragments, whereas variation in hybridization patterns within species was characterized primarily by differences in fragment lengths of faintly hybridizing fragments. Phylogenetic analyses were conducted based on fragment size variation within and among species. Phylogenetic relationships inferred from these analyses partly agree with the phylogenetic relationships obtained from biochemical and mitochondrial DNA data. We conclude that a set of DNA sequences common to the Y chromosomes of a closely related group of species in the subgenus Mus has evolved rapidly as reflected by sequence divergence and sequence amplification.  相似文献   

6.
The New World species of the subgenera Allotrichoma Becker and Neotrichoma (new subgenus) are revised, including a phylogenetic analysis of the species groups and subgenera within the genus Allotrichoma. For phylogenetic perspective and to document the monophyly of the genus Allotrichoma and its included subgenera and species groups, we also provide a cladistic analysis of genera within the tribe Hecamedini. The ingroup included seven exemplar congeners from within Allotrichoma. Outgroup sampling included exemplars of other genera within Hecamedini and from the putative sister group, Lipochaetini, and to root the analysis, we used an exemplar of the tribe Discocerinini. Analyses with successive weighting and implied weighting recovered a monophyletic Allotrichoma and indicated clades within the genus. Eight new species are described (type locality in parenthesis): Allotrichoma bifurcatum (Utah. Utah: Lake Shore (40°06.9'N, 111°41.8'W; 1370 m)), Allotrichoma dynatum (Oregon. Benton: Finley National Wildlife Refuge (44°24.6'N, 123°19.5'W)), Allotrichoma occidentale (Oregon. Lake: Lakeview (44 km E; Drake Creek; 42°11'N, 119°59.3'W)), Allotrichoma robustum (California. Kern: Kern River (35°16.1'N, 119°18.4'W)), Allotrichoma sabroskyi (New Mexico. Sandoval: La Cueva (Junction of Highways 126 and 4; 35°52'N, 106°38.4'W; 2342 m)), Allotrichoma wallowa (Oregon Baker: Goose Creek (35 km E Baker City; 44°49.2'N, 117°27.79'W; 825 m)), Allotrichoma baliops (Florida. Monroe: Key West (Willie Ward Park; 24°32.9'N, 81°47.9'W)), and Allotrichoma insulare (Dominica. Cabrits Swamp (15°35'N, 61°29'W)). Within Allotrichoma, we recognize three subgenera of which one, Neotrichoma (type species: Allotrichoma atrilabre), is newly described. All known species from the New World are described with an emphasis on structures of the male terminalia, which are fully illustrated. Detailed locality data and distribution maps for the New World species are provided. A lectotype is designated for Discocerina simplex Loew and a neotype is designated for Allotrichoma bezzii Becker. Allotrichoma filiforme Becker, Allotrichoma trispinum Becker, and Allotrichoma dahli Beschovski are reported as new synonyms of Allotrichoma simplex (Loew) and Allotrichoma yosemite Cresson is a new synonym of Allotrichoma atrilabre Cresson. We also clarify the status of previously described species, including those with Holarctic distributions. For perspective and to facilitate genus-group and species-group recognition, the tribe Hecamedini is diagnosed and a key to included genera is provided.  相似文献   

7.

Two new species of the subgenus Pseudotiorhynchus Magnano, 2004 of the genus Otiorhynchus Germar, 1822 are described from Iran: O. demavendussp. n. from Mount Demavend and O. binaludussp. n. from the Binalud Range.

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Effects of 37 fungicides — several of which were mixtures — on adult females of the rove beetle,Aleochara bilineata, were investigated in the laboratory. The pesticides were tested in concentrations equivalent to the highest recommended dosages for practical use. Mortality, egg production and hatch of the eggs were recorded. Most fungicides had no serious effect on any of the parameters measured. Among the morpholine and dithiocarbamate fungicides, several had adverse effects on egg production and/or hatch of the eggs laid. Furthermore, chinomethionate and pyrazophos were found to be toxic at the dosages used. Results are compared to results obtained with other species of beneficial arthropods in the laboratory. The importance of including several species in the assessment of pesticide side effects as well as the importance of measuring sublethal effects are stressed.
Résumé Des expériences de laboratoire ont été faites pour étudier les effets de 37 fongicides (dont plusieurs étaient des mélanges) sur les femelles adultes d'Aleochara bilineata. Les pesticides ont été testés à des concentrations équivalant aux plus fortes doses recommandées pour l'usage agricole. La mortalité, la production et l'éclosion des œufs ont été étudiées. La plupart des fongicides n'ont pas d'effet important sur aucun des paramètres retenus. Parmi les fongicides à base de morpholine et de dithiocarbamate, plusieurs avaient un effet contraire sur la production et l'éclosion des œufs. En outre le chinométhionate et le pyrazophos se sont révélés toxiques aux doses utilisées. Les résultats ont été comparés à d'autres résultats obtenus avec d'autres espèces d'auxiliaires au laboratoire. L'importance d'inclure plusieurs espèces dans l'évaluation des effects secondaires des pestieides ainsi que l'importance de mesurer les effets sublétaux sont soulignées.
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11.
对中国转刺蛛属Eriophora进行了修订,共记述8种,其中含3个新组合:宝天曼转刺蛛Eriophora baotianmanensis(Hu,Wang&Wang,1991)和喜马拉稚转刺蛛Ehimalayaensis(Tikader,1975)从园蛛属Araneus移人,杂斑转刺蛛E.poecila(Zhu&Wang,1994)从扇蛛属历肛n移人;3个新异名:王氏转刺蛛E.wangi Zhu et Song,1994和陕西转刺蛛E.shaanxiensis Zhu et Wang,1994均为宝天曼转刺蛛Ebaotianmanensis(Hu.Wang&Wang,1991)的异名,松林园蛛A.pineus Yin et a1.,1990为萨哈林转刺蛛E.sachalinensis(Saito.1934)的异名。  相似文献   

12.
In the present paper, the circum cription of the genus Dryopteris subgenus Erythrovariae (H. Ito) Fraser-Jenkins is revised, and a taxonomic study on the subgenus from Yunnan Province is carried out .The subgenus contains 2 sections, 12 species in Yunnan, of which D. yongdeensis W. M. Chu is a new species, D. championii, D. erythrosora, D. gymnosora, D. indusiata and D. integriloba are first recorded from Yunnan. The confusion between Dryopteris labordei and D. gymnosora is clarified, the former being treated as an independentspecies.  相似文献   

13.
王有智 《菌物研究》2013,11(3):158-163
黑陷球壳属是单囊壁子囊菌,属内许多种的定义一直不明确,该属应该归于哪一科等问题一直存在争议。文中通过对资料的搜集整理和模式标本的重新鉴定研究,确认了黑陷球壳属9个种;49个种归并到其他属;12个种由于不符合该属的特征,应予排除,但尚需确定名称;44个种由于模式标本材料太差或无法搜寻到模式标本,作为可疑种;另有11个种尚需搜寻模式标本重新研究。  相似文献   

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A sample ofDelia puparia collected in late autumn from a brassica field at Tromsø, northern Norway, was investigated to study the level of parasitism byAleochara. BothA. suffusa andA. bilineata were reared from puparia of the cabbage root fly,Delia radicum, and the bean seed flies,D. florilega and/orD. platura. Only two specimens ofA. bilineata emerged from puparia of the turnip root fly,D. floralis. BothAleochara species hibernated in the larval state and both pupated inside the host puparium. Most specimens ofA. suffusa emerged from small hosts (D. florilega/D. platura), whereas the majority of A.bilineata emerged from host species of larger size (D. radicum/D. floralis). The time to develop from first instar larva to adult was similar for bothA. suffusa andA. bilineata. Parasitoids developing in large hosts emerged later than those in small hosts, the delay being the same for both species ofAleochara.  相似文献   

18.
ABSTRACT Genus Mycterothrips and one species M. nilgiriensis with both male and female specimens has been recorded for the first time from Pakistan. The genus and the species have been described in detail, measurements of body parts along with illustrations have also been provided for future references. Thus adding to the list of Thysanoptera fauna from Pakistan.  相似文献   

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Among the subgenera of the genus Carex, the subgenus Indocarex has been seldom studied in any respects, Its systematic position and its subdivision are still disputable. Leaf anatomy of 14 species in the subgenus lndocarex from China was studied. The anatomical characters are proved to be systematically valuable. (1) Characters of lamina transverse section: All leaves of these 14 species are dorsiventral. The outline mostly V-shaped, occasionally flat or nearly flat, with adaxial lateral rib in each half of lamina and some of them flanged. The cells of adaxial surface larger than those of abaxial surface, and the epidermal cells over veins usually smaller than others. Air-cavities between vascular bundles are well developed, and bulliform cells also well developed in most taxa. The vascular bundles are collaterai, bundle sheaths double-layered, and the outer sheath parenchymatous and the inner sheath fibrous. (2) Characters of lamina epidermis: The shape of the cell on both surfaces is generally rectangular, and the anticlinal wall of epidermal cell sinuous; stomata is paracytic, elliptic to oblong, rarely sub-circular; prickles occur on adaxial surfaces of certain species; papillae are only obvious on abaxial surface of C. moupinensis Franch. The characters of transverse section and epidermis of leaf blades of these 14 species differ from each other to certain degree, and closely related species are similar in anatomical characters. The anatomical characters of lamina are of value for classification at specific and sectional level of the subgenus Indocarex. Despite of the variation of these characters among species, a certain num ber of characters appears to be shared by the members of the subgenus, and some of the common characters are primitive. In addition, some gross morphological characters are common and primitive also. Therefore, the subgenus Indocarex may be primitive in the genus Carex. The anatomical and morphological characters of C. scaposa C. B. Clakre and C. densifimbriata Tang et Wang ex S. Y. Liang are distinct. The two species and their allies should be treated as section instead of subsection. The three species in the sectionPolystachyae share some anatomical characters and comprise a coherent group.  相似文献   

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