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1.
记述萨蜓属Sarasaeschna Karube & Yeh的中国种类共计6种,其中包括1新种,即朱氏萨蜓S.zhuae sp.nov..正模♂,福建省华安县,2007-07-05,徐奇涵采.模式标本存放在漳州城市职业学院生物标本室.给出了萨蜓属中国已知种的名录、地理分布和检索表.新种区别于萨蜓属其它种的主要特征如下:1)在萨蜓属中个体最大;2)脸部总体为棕色,仅后唇基上缘具狭小黄色横带;3)腹部第3~7节基部侧面具大而明显的黄绿色斑;4)上肛附器腹侧亚端部具1半圆形突起.正中处和近基部2/5处各具1小齿;下肛附器长达上肛附器的5/6,为萨蜓属中最长者.  相似文献   

2.
1.木蛾霍克小蜂Hockeria epimactis新种 雌:体长5.0毫米。前翅基部1/3透明,端部稍褐,其余烟褐色,具暗褐色毛;近痣脉端部有1具白毛的圆斑,圆斑中有1褐色的钭纹;近臀角处另有1略呈三角形的大浅色斑(图1)。前、中足跗节及胫节端部暗黄褐色。胸部背面具白毛,其余毛黄白色。  相似文献   

3.
凹须翅尾蝗Primnoa cavicerca zhang,新种 雄性:体褐绿色,腹面黄色。头部背面近暗绿色,后头中央具细狭黄绿色纵纹。颜面黄绿色。前胸背板褐绿色,侧隆线外侧具黑色纵带纹与复眼后黑带纹相连。前胸背板侧片前端具一块向后上方倾斜的黑纹,在中横沟处与侧隆线外侧黑纹相连,故从侧面看近似“Y”字形。黑色纵带纹以下至侧片边缘均为黄色。前翅黑褐色,翅脉黑色。后足股节上侧褐绿色,外侧上、下隆线间为黑色,近基部的羽状隆线黄褐色;内侧上隆线两侧具黑色纵斑,其余为黄色。股节底侧黄色。股节端部内、外上膝侧片棕褐色,下膝侧片黄色。后足胫节黄色。胫节刺端部黑色。肛上板及肛侧板黄绿色。  相似文献   

4.
本文记述采自北京和云南的寄蝇二新种。新种模式标本保存于中国科学院动物研究所。 黑棒鞘寄蝇 Thecocarcalia melanohalterata, 新种(图1—5) 头、胸、腹全部黑色。侧额及胸部背面覆黄褐色粉被,其余部分覆灰色粉被;沿腹部背中线具一狭窄的黑纵条,粉被在腹部占第3背板基部的1/5,第4,5背板的1/2—3/5;上下腋瓣,平衡棒基半部、爪垫、唇瓣及雌蝇下颚须端半部黄褐色,平衡棒端半部黑褐色,翅灰色透明。  相似文献   

5.
云南省花蝇科二新种(双翅目:花蝇科)   总被引:6,自引:0,他引:6  
薛万琦 《动物学研究》2001,22(4):306-309
记述采自云南省花蝇科2新种,即:(1)分布于云南省禄劝的黑腹地种蝇Delia nigriabdomi-nis sp.nov.,(2)颁上于云南泸水片马的匙叶蕨蝇Chirosia fortipispatula sp.nov.。前者雄性尾器近似梯叶地种蝇Delia quadrilateralis Fan et Zhong,1982,但新种雄性侧额邻接,下眶鬃10对,芒短羽状,口前缘稍突出于额前缘;盾片具5个黑条,肩后鬃 2,腹侧片鬃0 2;前缘刺缺如,平衡棒和腋瓣褐色;胫节褐色,跗节暗褐色,前胫后背鬃5-6根,3根后鬃和2根后腹鬃;腹部各背板呈煤黑色;肛尾叶端半部两侧具很长的鬃毛等不同,匙叶蕨蝇近似于黑足蕨蝇Chirosia nigripes Bezzi,1895,但新种雄性额宽,接近头宽的一半,为触角第3节长的2倍,间额黑色,为一侧额宽的4倍;上眶鬃3对;芒毛稍长;后头背区具毛;前缘刺长大;肩后鬃1 0;后股中部具2根前腹鬃;后胫后腹鬃1-2;腹部细长,呈棒状;第5腹板形状不同,雄性侧尾叶侧面观末端成圆形,后面观基部内侧有突起,模式标本保存于沈阳师范大学昆虫研究所。  相似文献   

6.
浙江凯原(虫怱)属一新种记述(原(虫怱)科)   总被引:1,自引:0,他引:1  
本文记述1966年在浙江、杭州采到的凯原(虫怱)属的一个新种。 龙井凯原(虫怱)Cacondura longjingensis新种(图1—3) 雄性 体长34毫米,腹部长(连肛附器)28毫米,后翅长17毫米。 头部 下唇褐色,上唇黄褐色,基部中央有一黑点,上颚的基部和颊黄青色,前唇基黄褐色,中央有一对并列的黑色细纹,后唇基黑色,基部橙色,头部的其他部分黑色,头顶在两复眼之间一条中等宽的断续的橙色条纹,分割成三段,覆盖前单眼。 前胸黑色,侧面有橙色斑,前叶一小斑,中叶一三角形斑,后叶一小斑。  相似文献   

7.
1.黄肛斑腹寄蝇 Maculosalia flavicercia Chao et Liu,新种(图 1) 体黑色,覆灰白或灰黄色粉被,被黑毛;口上片,下颚须及下腋瓣黄白色。间额、触角基部2节棕黄色,触角第3节、翅肩鳞和前缘基鳞黑色,中胸背片具4个不完整的黑纵条;小盾片基部2/5黑褐色,端部3/5黄红色,下腋瓣略透黄色,足全部黑色,腹  相似文献   

8.
本文记述采自海南尖峰岭自然保护区异摇蚊属一新种 ,命名为额瘤异摇蚊Xenochironomustuberosussp .nov .新种头部具额瘤 ,腹部第六节背板生有粗大的刚毛 ,肛节背板毛序及生殖节上附器与本属已知种明显有别。依据该新种 ,本文对Cranston等 (1989)所描述的本属鉴别特征予以部分订正。该属在中国系首次记录。  相似文献   

9.
丁锦华 《昆虫学报》1985,(4):430-434
在我国云南、广东两省采集的同翅目、飞虱科Delphacidae标本中,经鉴定发现分隶于三个属的三个新种,现描述如下。 新种模式标本存放在南京农业大学植保系。 1.元江扁角飞虱 Perkinsiella yuanjiangensis 新种(图1—7) 头顶黄褐色,基宽为中长的1.3倍;额褐色,其间夹杂数对淡色小圆斑,中长为中部最宽处宽的1.6倍;颊黄褐,中域具“人”字形暗褐纹,端角两边沿脊亦具暗褐条纹;触角第一节背面和腹面近端缘及第二节基部黑褐,其余部分暗褐色;前、中胸背板中部污黄,侧区在  相似文献   

10.
中国横断山脉异蝽科新种记述(半翅目:异翅亚目)   总被引:1,自引:0,他引:1  
云南壮异蝽Urochela yunnana Ren,新种(图1,2) 体褐色,具黑色刻点及深黑色晕斑,毛光亮色淡。单眼的前、后方均具黑色斑;触角黑赭色,第2、3节、第4节的端半部及第5节的端部1/3为黑色;第4节的基部1/2及第5节的基部2/3为桔红色。前胸背板中部具4个小黄点,排成一横列,背板中央有  相似文献   

11.
We report 20 new species records for the Coleoptera fauna in New Brunswick, Canada, five of which are new records for the Maritime provinces, including one species that is new for Canada. One species of Kateretidae, Kateretes pusillus (Thunberg) is newly recorded for New Brunswick and the Maritime provinces. Stelidota octomaculata (Say), Phenolia grossa (Fabricius), andCryptarcha strigatula Parsons of the family Nitidulidae are added to the faunal list of New Brunswick; the latter species is new to the Maritime provinces. Two species of Cerylonidae, Philothermus glabriculus LeConte and Cerylon unicolor (Ziegler), are reported for the first time for New Brunswick. Philothermus glabriculus is new for the Maritime provinces. Two species of Endomychidae, Hadromychus chandleri Bousquet and Leschen and Danae testacea (Ziegler) are newly recorded for New Brunswick. Three species of Coccinelidae, Stethorus punctum punctum (LeConte), Naemia seriata seriata Melsheimer, and Macronaemia episcopalis (Kirby) are added to the provincial list. Macronaemia episcopalis (Kirby) is a species new to the Maritime provinces. Nine species of Latridiidae, Cartodere nodifer (Westwood), Dienerella ruficollis (Marsham), Enicmus aterrimus Motschulsky, Enicmus fictus Fall, Encimus histrio Jay and Tomlin, Lathridius minutus (Linnaeus), Stephostethus productus Rosenhauer, Corticaria elongata (Gyllenhal), and Corticarina longipennis (LeConte) are newly recorded for New Brunswick. Stephostehus productus is newly recorded from Canada. Collection and habitat data are presented for all these species.  相似文献   

12.
The aim of this report has been to present results concerning analytical quality controls of Hg analysis of fish and sediment, analyses of Fe, Ca, total-P, K, pH, alkalinity, conductivity, colour and hardness (Ca + Mg) of lake water samples. Despite the fact that these are standard parameters in many regular water control programs, there are major differences in the reliability with which these parameters can be determined. The focus here is on an overall inter-laboratory comparison between the parameters. Six laboratories have been involved in the analysis. Selected results: pH gives the lowest (average) relative standard deviation (error), about 2 %; conductivity gives an error of about 5–7 %; alkalinity yields an average error of as much as 13–25 %, which is the largest among the parameters studied here; colour also gives a high error, 9–15 %; hardness gives a relative standard deviation of about 6–7 %. Of the other parameters (i. e., Hg, Fe, Ca and P), Hg gives the best reliability and Fe and P the lowest. To have knowledge of the reliability of the analytical data is of paramount importance in most control programs and research projects.  相似文献   

13.
A review is presented of issues relevant to the definition, measurement, and classification of stimuli, situations, and environments. Problems such as the lack of adequate definitions of concepts, error and bias in measurement procedures, confusion between measurement of a concept and measurement of its behavioral effects, and the lack of agreement among alternative measures are emphasized. It is suggested that concepts be defined in terms of objective characteristics while allowing for the study of the transactional relationship between organism and environment. The work of the ethologists in defining stimuli while studying their relationship to different organismic states and situational contexts is emphasized in this regard. Following Brunswik, it is also suggested that wherever possible there be a representative sampling of variables in natural settings. Note from the editors: From time to time, Human Ecology will publish a review article. Our first in this series is a review by a psychologist of basic definitional and conceptual problems in environmental studies.This paper was prepared while the author was a Visiting Research Fellow at the Educational Testing Service. The support of ETS and my colleagues in the Division of Psychological Studies is gratefully acknowledged. The review was also supported in part by a grant from the Rutgers University Research Council.  相似文献   

14.
The Precautionary Principle is in sharp political focus today because (1) the nature of scientific uncertainty is changing and (2) there is increasing pressure to base governmental action on more “rational” schemes, such as cost-benefit analysis and quantitative risk assessment, the former being an embodiment of ‘rational choice theory’ promoted by the Chicago school of law and economics. The Precautionary Principle has been criticized as being both too vague and too arbitrary to form a basis for rational decision making. The assumption underlying this criticism is that any scheme not based on cost-benefit analysis and risk assessment is both irrational and without secure foundation in either science or economics. This paper contests that view and makes explicit the rational tenets of the Precautionary Principle within an analytical framework as rigorous as uncertainties permit, and one that mirrors democratic values embodied in regulatory, compensatory, and common law. Unlike other formulations that reject risk assessment, this paper argues that risk assessment can be used within the formalism of tradeoff analysis—a more appropriate alternative to traditional cost-benefit analysis and one that satisfies the need for well-grounded public policy decision making. This paper will argue that the precautionary approach is the most appropriate basis for policy, even when large uncertainties do not exist, especially where the fairness of the distributions of costs and benefits of hazardous activities and products are a concern. Furthermore, it will offer an approach to making decisions within an analytic framework, based on equity and justice, to replace the economic paradigm of utilitarian cost-benefit analysis.  相似文献   

15.
《Ethology and sociobiology》1992,13(5-6):523-542
In modern industrial nations, the traditional positive correlation between female body fat and social class has turned strongly inverse, thinness in women is admired and plumpness is a handicap. This recent reversal of what had seemed to be stable aspects of human nature is analyzed as a potentially adaptive response to two ecological novelties: chronic food surplus and the breakdown of barriers between men's and women's work, which, together, may have made thinness helpful to women competing for status and resources in both mating and job markets. Whether status and resources still promote long-term Darwinian fitness is an open question. Progress in understanding the unique properties of the human mind depends on widespread recognition that the mind has been designed by natural selection to seek and sometimes find adaptive solutions to the novel problems we ourselves create. Adaptive flexibility and cultural change are two sides of the same coin.  相似文献   

16.
We report 19 new species records for the faunal list of Coleoptera in New Brunswick, Canada, six of which are new records for the Maritime provinces, and one of which is new Canadian record. We also provide the first recent records for five additional species in New Brunswick. One new species of Stenotrachelidae, Cephaloon ungulare LeConte, is added to the New Brunswick faunal list. Additional records are provided for Cephaloon lepturides Newman, as well the first recent record of Nematoplus collaris LeConte. Two species of Oedemeridae, Asclera puncticollis (Say) and Asclera ruficollis (Say), are newly reported for New Brunswick, and additional locality and bionomic data are provided for Calopus angustus LeConte and Ditylus caeruleus (Randall). The records of Ditylus caerulus are the first recent records for the province. Three species of Meloidae, Epicauta pestifera Werner, Lytta sayi LeConte, and Meloe augustcollis Say are reported the first time for New Brunswick; Epicauta pestifera is newly recorded in Canada. Lacconotus punctatus LeConte and the family Mycteridaeis newly recorded for New Brunswick. The first recent records of Borus unicolor Say (Boridae) are reported from the province. One new species of Pythidae, Pytho siedlitzi Blair, and the first recent records of Pytho niger Kirby are added to the faunal list of New Brunswick. Three species of Pyrochroidae are newly reported for the province, including Pedilus canaliculatus (LeConte) and Pedilus elegans (Hentz), which are new for the Maritime provinces. Five species of Anthicidae and the first recent record of Anthicus cervinus LaFerté-Sénectére are newly reported for New Brunswick. Anthicus melancholicus LaFerté-Sénectère, Sapintus pubescens (LaFerté-Sénectère), Notoxus bifasciatus (LeConte), and Stereopalpus rufipes Casey are new to the Maritime provinces faunal list. Ambyderus granularis (LeConte) is removed from the faunal list of the province. Three species of Aderidae, Vanonus huronicus Casey, Zonantes fasciatus (Melsheimer), and Zonantes pallidusWerner, are newly recorded for New Brunswick; Zonantes fasciatus and Vanonus huronicus are new for the Maritime provinces' faunal list. Collection data, bionomic data, and distribution maps are presented for all these species.  相似文献   

17.
Oral cancer is one of the main causes of cancer-related deaths in South-Asian countries. There are very limited treatment options available for oral cancer. Research endeavors focused on discovery and development of novel therapies for oral cancer, is necessary to control the ever rising oral cancer related mortalities. We mined the large pool of compounds from the publicly available compound databases, to identify potential therapeutic compounds for oral cancer. Over 84 million compounds were screened for the possible anti-cancer activity by custom build SVM classifier. The molecular targets of the predicted anti-cancer compounds were mined from reliable sources like experimental bioassays studies associated with the compound, and from protein-compound interaction databases. Therapeutic compounds from DrugBank, and a list of natural anti-cancer compounds derived from literature mining of published studies, were used for building partial least squares regression model. The regression model thus built, was used for the estimation of oral cancer specific weights based on the molecular targets. These weights were used to compute scores for screening the predicted anti-cancer compounds for their potential to treat oral cancer. The list of potential compounds was annotated with corresponding physicochemical properties, cancer specific bioactivity evidences, and literature evidences. In all, 288 compounds with the potential to treat oral cancer were identified in the current study. The majority of the compounds in this list are natural products, which are well-tolerated and have minimal side-effects compared to the synthetic counterparts. Some of the potential therapeutic compounds identified in the current study are resveratrol, nimbolide, lovastatin, bortezomib, vorinostat, berberine, pterostilbene, deguelin, andrographolide, and colchicine.  相似文献   

18.
William Simkulet 《Bioethics》2019,33(9):1002-1011
Most serious contemporary opposition to abortion is grounded on the belief that human fetuses are members of the same moral category as beings like us, and that the loss of any such life is one of the worst possible losses. Substance view theorists oppose abortion for this reason: in their view beings like us are essentially rational substances with inherent moral worth, and those who perform induced abortion fail to recognize this moral worth. In a recent series of articles, Rob Lovering presents reductio‐style arguments against the substance view, in part arguing that it is inconsistent with our intuitions in rescue and spontaneous abortion cases. In a recent reply, Henrik Friberg‐Fernros argues that the substance view can evade these problematic implications because of a distinction between killing and letting die. According to this argument, the fetus’s right to life is a negative right not to be killed, not a positive right to be rescued, thus the anti‐abortion theorist who lets fetuses die acts acceptably. I argue this stance fails to recognize the inherent moral worth that the substance view contends fetuses possess. One who refrains from saving a person, or doesn’t care how many people she saves, cannot reasonably claim to value life. Furthermore, this stance is at odds with most contemporary anti‐abortion views that oppose induced abortions of both the killing and letting die variety.  相似文献   

19.
Leucine-rich repeats (LRRs) with 20-30 amino acids in unit length are present in many proteins from prokaryotes to eukaryotes. The LRR-containing proteins include a family of nine small proteoglycans, forming three distinct subfamilies: class I contains biglycan/PG-I and decorin/PG-II; class II: lumican, fibromodulin, PRELP, keratocan, and osteoadherin; and class III: epiphycan/PG-Lb and osteoglycin or osteoinductive factor. Comparative sequence analysis of the 34 available protein sequences reveals that these proteoglycans have two types of LRRs, which we call S and T. The type S LRR is 21 residues long and has the consensus sequence of xxaPzxLPxxLxxLxLxxNxI. The type T LRR has 26 residues; its consensus sequence is zzxxaxxxxFxxaxxLxxLxLxxNxL. In both "x" indicates variable residue; "z" is frequently a gap; "a" is Val, Leu, or Ile; and I is Ile or Leu. These type S and TLRRs are ordered into two super-motifs--STT with about 73 residues in classes I and II and ST with about 47 residues in class III. The 12 LRRs in the small proteoglycans of I and II are best represented as (STT)4; the seven LRRs of class III as (ST)T(ST)2. Our analyses indicate that classes I/II and III evolved along different paths after the establishment of the precursor ST, and classes I and II also diverged after the establishment of the precursor (STT)4.  相似文献   

20.
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