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1.
系统研究直翅目蚱总科的玛蚱属、拟科蚱属及微翅蚱属在中国的种类,以检索表形式进行分类研究,共计记述玛蚱属26种,拟科蚱属9种,微翅蚱属15种,其中包括2新种及3种新组合,即墨脱玛蚱Mazarredia medogensis sp.nov.、平缘微翅蚱Alulatettix rectimargina sp.nov.二个新种及桂林拟科蚱Cotysoides guilinensis(Deng、Zheng&Wei)comb.nov.、黑背拟科蚱Cotydoides celaenotus(Zheng、Zhang&Dang)comb.nov.、拟西藏拟科蚱Cotysoides paratibetanus(Zheng et Shi)comb.nov.三种新组合.模式标本保存于陝西师范大学动物研究所昆虫标本室.  相似文献   

2.
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   

3.
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   

4.
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   

5.
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   

6.
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   

7.
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   

8.
以检索表形式报导了中国雏蝗属109种的形态分类和分布,并记述西山雏蝗Chorthippus xishanensissp.nov.及贵德雏蝗Chorthippus guideensis sp.nov.2个新种.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   

9.
本文记述圆颚蛛科奥塔蛛属1新种:大祥奥塔蛛,新种Otacilia daxiangi sp.nov.。并提供了该新种彩色特征图。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   

10.
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   

11.
报道了产于中国海南省狒蛛科棒刺蛛亚科Selenocosmiinae缨毛蛛属一新种:敬钊缨毛蛛Chilobrachys jingzhao.sp.nov.0通过对海南捕岛蛛Selenocosmia hainana Liang et al.,1999的研究,认为该种应转移到捕鸟蛛亚科Ornithoctoninae的捕鸟蛛属Ornithoctonus,并对海南鸟蛛Ornithoctonus hanina(Ling et al.,1999)的雌蛛及新发现的雄性进行了描述和图示。  相似文献   

12.
This study was aimed to elucidate whether there is significant relationship between the lower calyceal anatomy and stone evacuation following extracorporeal shock wave lithotripsy(ESWL). From April 1995 to November 1999, 145 patients with lower caliceal stones underwent ESWL with Storz Modulith SL20 lithotriptor. The pelvicalyecal angle, lower pole infundibular length and width, and lower pole calyceal pattern of the stone-bearing calyx were measured on pre-ESWL intravenous urograms. Abdominal plain film and ultrasonography taken of all patients at the 3-month followup showed that the overall stone-free rate was 65% after 3 months. The stone-free rate was significantly correlated to the radiographic anatomical factor, 94% in patients with a pelvicalyceal angle of 90 degrees or greater, 57% in those with less than 90 degrees pelvicalyceal angle; 80% in those with infundibular length of 30 mm or less, 59% in those with infundibular length greater than 30 mm; 73% in those with infundibular width greater than 4 mm, 48% in those with infundibular width of 4 mm or less; 85% in those with a simple calyceal pattern and 41% in those with a complex one. These findings suggest that the 4 radiographic anatomical factors of the lower pole calyx (pelvicalyceal angle, infundibular length and width and calyceal pattern) play an important role in stone evacuation after ESWL. Pelvicalyceal angle of 90 degrees or greater, infundibular length of 30 mm or less and width greater than 4 mm, and simple calyceal pattern are respectively noted to relate to an improved stone-free status. In contrast, an acute pelvicalyceal angle, long infundibular length and narrow infundibular width and complex calyceal pattern are individually unfavorable factors for stone emptying following ESWL.  相似文献   

13.
描记采于昆明市路南县黑龙潭水库的桃花水母属一新种——云南桃花水母,新种主辐触手显著长于其他触手;缘膜窄;平衡囊呈“S”形管状;刺丝囊集成丛,呈不连续的环状或螺旋状;生殖腺大,三角袋状,黑色等特征,均可明显与所有已发现的种相区别。  相似文献   

14.
INTRODUCTIONSinceitsclinicalintroduction ,extracorporealshockwavelithotripsy(ESWL)hasmaintainedanimportantroleinthemanagementofurinarycalculi.Thesuccessofthistherapeuticproce duredependsontheeffectivedisintegrationandevacuationofstonedebris.However,thest…  相似文献   

15.
记述了采自贵州茂兰自然保护区的异足蛛属一新种:双叉异足蛛Heteropodabifurcutasp.nov.。  相似文献   

16.
匀鞭蚜小蜂3对足的特点是:3对足的基节均具有相同数量的指状感器,转节上具有同样的盘状感器。前足胫节及基跗节发达,并有触角清洁器。后足腿节粗壮,便于跳跃。  相似文献   

17.
建立辽细辛不同药用部位中马兜铃酸A的含量测定方法并检测其含量。分别采用索氏提取法、超声提取法两种方法对不同产地辽细辛进行前处理,采用反相高效液相色谱法(RP-HPLC)对辽细辛中马兜铃酸A进行测定,色谱柱为XDB-C18(4.6mm×150mm,5μm),流动相为甲醇一水一冰醋酸(70:29:1),检测波长为316nm,柱温为室温,流速为1ml/min。分析样品在10分钟内可全部出峰,且在8小时测定时间内稳定性良好;马兜铃酸A含量在20.4ng~102ng范围内相关系数R:0.9999,在2.04ng~20.4ng范周内相关系数1R=O.9960,相对标准偏差(RSD)为1.2%。该方法简便快速,线性关系和精密度良好.适用于辽细辛马兜铃酸A含量的测定,所测产地的辽细辛质量较好。  相似文献   

18.
Two reef margin species of tropical sea urchins, Echinometra sp. C (Ec) and Echinometra oblonga (Eo), occur sympatrically on Okinawa intertidal reefs in southern Japan. Hybridization between these species was examined through a series of cross-fertilization experiments. At limited sperm concentrations, where conspecific crosses reached near 100% fertilization, both heterospecific crosses showed high fertilization rates (81%–85%). The compatibility of the gametes demonstrated that if gamete recognition molecules are involved in fertilization of these species, they are not strongly species-specific. We found that conspecific crosses reached peak fertilization levels much faster than did heterospecific crosses, indicating the presence of a prezygotic barrier to hybridization in the gametes. Larval survival, metamorphosis, and juvenile and adult survival of hybrid groups were nearly identical to those of their parent species. Hybrids from crosses in both directions developed normally through larval stages to sexually mature adults, indicating that neither gametic incompatibility nor hybrid inviability appeared to maintain reproductive isolation between these species. In adults, Ec×Ec crosses gave the highest live weight, followed by Eo (ova)×Ec (sperm), Ec (ova)×Eo (sperm), and Eo×Eo. Other growth performance measures (viz., test size, Aristotle’s lantern length, and gonad index) of hybrid groups and their parental siblings showed the same trends. The phenotypic color patterns of the hybrids were closer to the maternal coloration, whereas spine length, tube-foot and gonad spicule characteristics, pedicellaria valve length, and gamete sizes showed intermediate features. Adult F1 hybrids were completely fertile and displayed high fertilization success in F1 backcrosses, eliminating the likelihood that hybrid sterility is a postzygotic mechanism of reproductive isolation. Conversely, intensive surveys failed to find hybrid individuals in the field, suggesting the lack or rarity of natural hybridization. This strongly suggests that reproductive isolation is achieved by prezygotic isolating mechanism(s). Of these mechanisms, habitat segregation, gamete competition, differences in spawning times, gametic incompatibility or other genetic and non-genetic factors appear to be important in maintaining the integrity of these species.  相似文献   

19.
以中科院王极盛教授编制的中国中学生心理健康量表(MMHI-60)为研究工具,采用分层随机抽样的方式,以西宁市区7所中学1478名中学生作为调查对象,其调查结果表明:(1)西宁市区中学生在反映心理健康水平的总均分等指标上高于常模,心理健康状况不容乐观;(2)心理问题的总检出率为44.99%,和全国相比检出率较低;(3)男女生在心理健康总水平方面无明显差异,但男生在几个分量表上的得分显著高于女生;(4)随着直系家庭成员缺失程度的加重,学生的心理健康水平在降低;(5)普通中学学生的心理健康水平低于重点中学学生;(6)高一学生的心理健康问题最严重,其次是初三。  相似文献   

20.
400只青脚麻鸡分别于21、28、35、42、49、56日龄随机抽取样鸡8只(公、母各半)称重,分离股骨和胫骨,称重并测量长度,分析骨指数、相对生长和累积生长,观察青脚麻鸡3~8周龄腿骨的发育规律。结果表明:公、母鸡股骨的绝对长度生长峰期出现落后于绝对增重,即49日龄对42日龄,而公、母鸡的胫骨绝对长度生长峰期出现先于绝对增重。截至56日龄,公、母鸡的股骨和胫骨长度没有差异,而公鸡的股骨和胫骨重均大于母鸡,与股骨比较,公、母鸡的胫骨均在早期生长较快,胫骨指数大于股骨指数。不同性别的股骨和胫骨重均与其日龄的增加呈高度正相关。  相似文献   

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