共查询到20条相似文献，搜索用时 171 毫秒
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郑哲民 《商丘师范学院学报》2014,(12):1-9
记述釆自江西、海南及云南省蚱总科昆虫6新种,即短翼蚱科的井岗山玛蚱 Mazqarredia jinggangshanensis sp．nov．、普洱蟾蚱Hyboella puerensis sp．nov．、版纳拟科蚱Cotysoides bannaensis sp．nov．、蚱科的版纳庭蚱Hedoet ttxi bannaensis sp．nov．、拟短翅柯蚱Cpo totettix ap rabrachyptera sp．nov．及宽顶无翅蚱 Aalaet ttix al tivre tex sp．nov．此外首次描述闽侯柯蚱Coptotettix minhouensis Zheng et Li的雄性．新种的模式标本保存于陕西师范大学动物研究所昆虫标本室． 相似文献
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郑哲民 《商丘师范学院学报》2012,(6):1-18
系统地记录中国蚱总科中羊角蚱属、柯蚱属及台蚱属的种类,以检索表形式进行分类研究,共记述羊角蚱属33种,柯蚱属29种,台蚱属55种,其中包括7新种,即广东羊角蚱Criotettix guangdongensis sp.nov.、广州柯蚱Coptotettix guangzhouensis sp.nov.、尖峰柯蚱Coptotettix jianfengensis sp.nov.、直缘柯蚱Coptotettix orthomarginis sp.nov.、海南台蚱Formosatettix hainanensis sp.nov.、波股台蚱Formosatettix undulatifemura sp.nov.及黑胫台蚱Formosatettix nigritibia sp.nov..模式标本保存于陕西师范大学动物研究所. 相似文献
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郑哲民 《商丘师范学院学报》2013,(12)
系统研究蚱总科短翼蚱科中的狭顶蚱属、蟾蚱属及波蚱属在中国的种类,以检索表形式进行分类研究,共记述狭顶蚱属14种,蟾蚱属19种,波蚱属65种,其中包括3新种,即湖南狭顶蚱Systolederus hunanensis sp． nov．八大公山蟾蚱Hyboella badagongshanensis sp．nov．及壶瓶山波蚱Bolivaritettix hupinshanensis sp．nov．．湖南狭顶蚱近似于姑婆山狭顶蚱Systolederus goposhanensis Deng, Zheng＆Wei,2007,主要区别为：1）颜面隆起纵沟宽与触角基节等宽;2）侧单眼位于复眼前缘的中部;3）触角着生于复眼下缘之间;4）肩部之间具1对短纵隆线;5）后翅到达后突的顶端;6）中足股节宽等于前翅宽;7）第1跗节下之第3垫大于第1、2垫;8）体较大,雄体长8 mm．八大公山蟾蚱近似于台湾蟾蚱Hyboella taiwanensis Liang,2000及海南蟾蚱Hyboella hainanensis Liang,2000．其区別于后二者为：1）头顶宽为1眼宽的2．14倍;2）侧面观前胸背板上缘近平直;3）后突到达后足股节4/5处;4）后突顶狭圆形;5）中足股节下缘平直;6）体较大,雌体长15 mm．该新种又区別于海南蟾蚱为：1）前胸背板前缘平直;2）沟前区侧隆线向后收缩;3）肩部之间不具1对短纵隆线;而又区别于台湾蟾蚱为肩角钝角形．壶瓶山波蚱近似于尖齿波蚱Bolivaritettix acumindentatus Zheng, Shi＆Mao,2010,主要区别为：1）前胸背板总长为超出后足股节顶端部分长的2．7倍;2）后翅超过后突的顶端;3）中足股节宽等于前翅宽;4）后足股节下侧外面非黑色;5）后足胫节全暗褐色,不具淡色环．新种的模式标本保存于陕西师范大学动物研究所昆虫标本室． 相似文献
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郑哲民 《商丘师范学院学报》2014,(3):1-14
系统地记录刺翼蚱科镰蚱属、蚱科庭蚱属及悠背蚱属的种类,以检索表形式进行分类研究,共记述镰蚱属16种,庭蚱属21种,悠背蚱属59种,其中有2个新种,即海南庭蚱Hedotettix hainanensis sp.nov.及雅安悠背蚱Euparatettix yaanensis sp.nov.,附有中国种的检索表和分布,模式标本保存于陕西师范大学动物研究所. 相似文献
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对中国波蚱属进行了系统研究,记述67种,内有3新种,即封开波蚱Boliveritettix fenkaiensis sp.nov.、长背波蚱Bolivaritettix longidorsalis sp.nov.及二齿波蚱Bolivaritettix bidentatus sp.nov.附有中国波蚱属分种检索表,分布及引证.新种的模式标本保存于陕西师范大学动物研究所昆虫标本室. 相似文献
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梁铬球 《中山大学学报论丛》1995,(2)
本文报道刺翼蚱科一新属一新种。新属:弯背蚱属Cypholellix gen,nov.的主要特征是前胸背板背面在肩角突然隆起,侧面观近似驼峰形。其模式种为鼎湖弯背蚱Cypholellix dinghuensis sp.nov. 相似文献
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本文记述跳蛛科雅蛛属Yaginumaella蜘蛛两新种:大理雅蛛Yaginumaella dali sp.nov.和直缘雅蛛Y.orthomargina sp.nov.。模式标本保存在大理学院生物标本馆。文中测量单位为mm。 相似文献
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记述采自西藏地区黄佛蝗属Chlorophlaeoba一新种,即黑翅黄佛蝗Chlorophlaeoba nigripennis sp.nov.该新种近似于越黄佛蝗Chlorophlaeoba tonkinensis Ramme,1941,其区别于越黄佛蝗为:头部长略短于前胸背板长;颜面隆起最宽处为最狭处宽的3倍;中央单眼明显;前胸背板沟前区长度与后区等长;前翅超过后足股节顶端;后翅黑褐色;后足胫节褐色.附有黄佛蝗属已知种检索表.新种的模式标本保存于陕西师范大学动物研究所昆虫标本室. 相似文献
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系统地研究了分布于中国黄脊蝗属Patanga种类共计有5种,其中有一新种,短尾黄脊蝗Patanga brachycerca sp.nov..文中记述了每个种的引证和分布地区,并附有分种检索表.模式标本保存于西南林学院保护生物学院昆虫标本室. 相似文献
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1 第一次物种大灭绝——奥陶纪
第一次物种大灭绝发生在5亿年前的奥陶纪末期,由于当时地球气候变冷和海平面下降,生活在水体的各种不同无脊椎动物便荡然无存。 相似文献
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Vidyanand Nanjundiah 《Resonance》2009,14(2):124-153
A happy accident enabled the young Charles Darwin to go on a voyage of exploration a round the world. Among the outcomes of
that voyage was a book, The Origin of Species, which was published in 1859. In it Darwin developed aperspective of the living world that, as we have come to realise, encapsulates
its essence. By viewing plants and animals as dynamical entities that were subject to external forces, he was able to show
convincingly that they had evolved, on the whole by a process known as natural selection. In doing so he made the point that
the living world was explainable on the basis of natural laws and, at the same time, that biology can lay claim to an autonomous
status among the natural sciences. Paradoxically, he a ccomplished all this with out knowing how heredity worked or variations
occurred. This article attempts to look at The Origin of Species from the vantage point of the present. Anaccount of the events that led to the writing of the book will be followed by a
quick run through its contents. The essay ends with a mention of some issues that continue to engage evolutionary biologists
today.
The author has a PhD in physics from the University of Chicago. His research interests lie in the areas of developmental biology
and evolution.
Text of the L K Ananthakrishnan Memorial Lecture, Pune, 13 February 2009. 相似文献
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Identification of Rhodiola species by using RP-HPLC 总被引：2，自引：0，他引：2
INTRODUCTION The roots of Rhodiola species, one of the im-portant traditional Chinese herbal medicines, have anti-viral (Sun et al., 1993), anti-tumor (Wang et al., 1992), anti-ageing (Yi et al., 1992), anti-oxygen de-ficiency, anti-radiation (Luo et al., 1996) effects and other pharmacological properties (Xu et al., 2000). Ten Rhodiola species distribute in the Tianshan Mountains areas of China. Biologically active com-pounds content in the roots has large variation and the value of… 相似文献
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