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天牛科,花天牛亚科Lepturinae、花天牛族Lepturini的长颊花天牛属Gnathostrang alia是由Hayashi于1985年建立的,并将条胸长颊花天牛Lepturabilineatithorax Pic,黑条长颊花天牛Strangalia rufovittata Pic,天目山长颊花天牛Strangalia tienmushana Gressitt,黑尾长颊花天牛Strangalia aurivillei Pic以及横条长颊花天牛Strangalia longiceps Aurivillus等5个种移入此属,其中,分布在越南的有3种,加里曼丹1种,中国浙江天目山1种。该属与长尾花天牛属Pygostrangalia很近似,但头前部更长,前胸背板较宽,后侧角较发达,鞘翅基部较宽,向中部收狭,端半部外侧缘较直。本文记述了在广西龙胜和四川重庆江津四面山发现的两个新种。 相似文献
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记述天牛科Cerambycidae天牛亚科Cerambycinae长绿天牛属Chloridolum长绿天牛亚属Chloridolum 1新记录种:绒斑长绿天牛Chloridolum plicovelutinum Gressitt & Rondon。观察标本保存在广东省昆虫研究所昆虫标本馆。 相似文献
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四种筒天牛幼虫和蛹记要(鞘翅目:天牛科) 总被引:3,自引:0,他引:3
筒天牛属沟胫天牛亚科Lamiinae、楔天牛族Saperdini,为害多种植物。现将吉安樟筒天牛Oberea fusciventris Fairmaire、忍冬筒天牛O.incompleta Fairmaire构树筒天牛O.rufotestasea Pic和暗翅筒天牛O.fuscipennis(Chevrolat)幼虫和蛹的形态、生物学习性记述如下,本文长度单位均为mm。 相似文献
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记述天牛科Cerambycidae天牛亚科Cerambycinae5中国新记录种,即绿虎天牛属Chlorophorus中的碎点绿虎天牛Chlorophorus fraternus Holzschuh,卡氏绿虎天牛Chlorophorus kanoiHayashi,栗绿虎天牛Chorophorus varius varius(Muller)。柄天牛属Aphrodisium中的紫胸柄天牛Aphrodisium seipur pureum Pic和绿天牛属Chelidonium中的二斑绿天牛Chelidonium binotatiolle Pic。 相似文献
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对分布于北京的10种脊虎天牛属甲虫开展了分类研究,恢复了北京脊虎天牛Xylotrechus pekingensis Pic,1939的地位,不再是宽带脊虎天牛Xylotrechus yanoi Gressitt,1934的异名,报道了本种在河北和陕西的新分布记录.提出双带脊虎天牛Xylotrechus bifenestratus Pic,1916是四带脊虎天牛Xylotrechus polyzonus (Fairmaire,1888)的新异名,两者的模式标本均产自北京.本文还报道了3种北京新记录种:显纹脊虎天牛X.ibex (Gebler,1825)、葡脊虎天牛X.pyrrhoderus Bates,1873和黑胸脊虎天牛X.robusticollis (Pic,1936).通过检视标本,很多新的分布信息被加入到相关的种类.最后本文提供了分布于北京的10种脊虎天牛属甲虫的分种检索表. 相似文献
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记述采自中国云南省袖蜡蝉科1新记录属:肖长袖蜡蝉属Zoraidoides Distant及1新记录种:玛肖长袖蜡蝉Zoraidoides malabarensis Distant,提供了形态描述、分布及形态图。标本保存于西北农林科技大学昆虫博物馆。 相似文献
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Plasma Physics Reports - Localized plasma formations called space leaders are observed in streamer coronas of negative leaders of long laboratory sparks. The main leader completes a step when the... 相似文献
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Background
Geminiviruses (family Geminiviridae) are small single-stranded (ss) DNA viruses infecting plants. Their virion morphology is unique in the known viral world – two incomplete T = 1 icosahedra are joined together to form twinned particles. Geminiviruses utilize a rolling-circle mode to replicate their genomes. A limited sequence similarity between the three conserved motifs of the rolling-circle replication initiation proteins (RCR Reps) of geminiviruses and plasmids of Gram-positive bacteria allowed Koonin and Ilyina to propose that geminiviruses descend from bacterial replicons. 相似文献14.
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The psychrotrophic bacteriumBacillus psychrophilus was transformed with the broadhost-range plasmid pC194. The ability of the transformant to express chloramphenicol (CAM) resistance and the possible effects of such expression on the physiology of the psychrotroph were examined. The transformant exhibited growth rates, filament formation at elevated temperatures, synthesis of cold shock proteins and cold acclimation proteins, similar to the parentalB. psychrophilus. 相似文献
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