Two new freshwater species of the genus Jesogammarus (Crustacea: Amphipoda: Anisogammaridae) from northern Japan

Two new anisogammarid species belonging to the genus Jesogammarus were obtained from freshwater habitats from northern Japan. They are Jesogammarus (J.) fujinoi sp. nov. and Jesogammarus (J.) shonaiensis sp. nov. The former new species is diagnosed by the pleonites without spine and the telson without distolateral spine. The other new species differs from the congeneric species in having many dorsal spines on pleonites 1-3.     

Intraspecific or interspecific variation: delimitation of species boundaries within the genus Gammarus (Crustacea,Amphipoda, Gammaridae), with description of four new species

The delineation of Gammarus species is controversial because of extensive intraspecific morphological variation. The current study examined DNA sequences from the mitochondrial cytochrome c oxidase subunit I and the nuclear 28S genes as well as morphological and ecological data to determine the species boundaries of Gammarus species from China. The results of molecular analyses showed that Gammarus sp1, G. sp2, G. sp3, and G. sp4 are monophyletic and deeply divergent from sister groups. Detailed morphological and ecological comparisons with closely related species were consistent with molecular analyses. Gammarus sp1, G. sp2, G. sp3, and G. sp4 were described as four new species: Gammarus illustris sp. nov. , Gammarus clarus sp. nov. , Gammarus hypolithicus sp. nov. , and Gammarus parvioculus sp. nov. We recommend that molecular detected species should be formally named and described for future research. © 2010 The Linnean Society of London, Zoological Journal of the Linnean Society, 2010, 160 , 215–253.     

A new freshwater species of the genus Jesogammarus (Crustacea: Amphipoda: Anisogammaridae) from northern Japan

-A new species of anisogammarid amphipod, Jesogammarus (Jesogammarus) mikadoi sp. nov., is described from freshwater habitats in northern Honshu, Japan. The species is distinguished from its congeners by having dorsal setae on pereonites 5-7 and pleonites 1-3.     

Gambierdiscus (Gonyaulacales,Dinophyceae) diversity in Vietnamese waters with description of G. vietnamensis sp. nov.

Viet Nam has a coastline of 3200 km with thousands of islands providing diverse habitats for benthic harmful algal species including species of Gambierdiscus. Some of these species produce ciguatera toxins, which may accumulate in large carnivore fish potentially posing major threats to public health. This study reports five species of Gambierdiscus from Vietnamese waters, notably G. australes, G. caribaeus, G. carpenteri, G. pacificus, and G. vietnamensis sp. nov. All species are identified morphologically by LM and SEM, and identifications are supported by molecular analyses of nuclear rDNA (D1–D3 and D8–D10 domains of LSU, SSU, and ITS1-5.8S-ITS2 region) based on cultured material collected during 2010–2021. Statistical analyses of morphometric measurements may be used to differentiate some species if a sufficiently large number of cells are examined. Gambierdiscus vietnamensis sp. nov. is morphologically similar to other strongly reticulated species, such as G. belizeanus and possibly G. pacificus; the latter species is morphologically indistinguishable from G. vietnamensis sp. nov., but they are genetically distinct, and molecular analysis is deemed necessary for proper identification of the new species. This study also revealed that strains denoted G. pacificus from Hainan Island (China) should be included in G. vietnamensis sp. nov.     

中国太宇谷蛾属分类研究(鳞翅目,谷蛾科)(英文)

记述中国太宇谷蛾属Gerontha Walker10种,其中有4新种:拟华太宇谷蛾G.similihoenei sp.nov.,喙太宇谷蛾G.rostriformis sp.nov.,梯缘太宇谷蛾G.trapezia sp.nov.,褶太宇谷蛾G.rugulosa sp.nov.和3新纪录种:暹罗太宇谷蛾G.siamensis Moriuti,1989(图7,17～18)、清迈太宇谷蛾G.nawapuriensis Moriuti,1989(图8,19)、钻太宇谷蛾G.borea Moriuti,1977(图9,20).首次发现和报道了弯茎太宇谷蛾Gerontha flexura Huang et al .(图6,15-16)和暹罗太宇谷蛾G.siamensis Moriuti的雌性个体.文中给出了所有中国种的检索表.研究标本保存于南开大学生命科学学院昆虫标本室.     

中国方颜叶蜂属(膜翅目,叶蜂科)种团二新种

记述中国方颜叶蜂属erratica种团二新种:短刃方颜叶蜂Pachyprotasis breviserrula Wei et Zhong,sp.nov.和弱齿方颜叶蜂Pachyprotasis obxurodentellsa Wci et Zhong,sp.nov..新种模式标本保存在中南林业科技大学昆虫模式标本室.     

A New Species of Gracixalus(Anura: Rhacophoridae) from West Guangxi,China

We discovered a new species of the genus Gracixalus,Gracixalus tianlinensis sp.nov.which is morphologically almost similar to G.jinggangensis,G.jinxiuensis and G.sapaensis,but is distinguished from these species and all other rhacophorids in China and adjoining countries by a combination of the following characters:(1)SVL 30.3-35.9 mm in male,35.6-38.7 mm in female,(2)head length less than head width,(3)vomerine teeth absent,(4)supratympanic fold distinct,(5)axilla and posterior surface of flanks pale yellow,(6)nuptial pads distinct on Finger I and slightly visible on Finger II,(7)dorsum brown to beige,with an inverse Y-shaped dark brown marking,(8)single subgular vocal sac.Our preliminary phylogenetic analyses implied G.tianlinensis sp.nov.is sister to G.sapaensis with well-supported values.Currently,this new species is known to be distributed in montane evergreen forests in association with montane bamboo in Cenwanglaoshan National Nature Reserve,Tianlin County,Guangxi,China.     

新疆钩虾属一新种(甲壳纲,端足目,钩虾科)

记述了分布在新疆乌拉泊水库、米泉铁厂沟和乌鲁木齐市郊的淡水钩虾1新种,华美钩虾Gammarus decorosus sp.nov.。文中详细描述了其形态特征和与近似种的比较,同时附有特征图。模式标本保存于中国科学院动物研究所。     

中国锥羽蛾属研究及三新种记述(鳞翅目,羽蛾科)

锥羽蛾属Gillmeria全世界已记录13种,除G.omissalis(Fletcher)分布于澳大利亚外,其余12种均分布在全北区,而G.pallidactyla(Haworth)在巴西也有记录.我国原记录有4种,本文记述8种,包括3新种和中国1新纪录种.新种为:楔锥羽蛾G cuneiformis sp.nov.,点斑锥羽蛾G.fuscata sp.nov.和佛坪锥羽蛾G.fopingensis sp.nov.新纪录种环锥羽蛾G.ochrodactyla(Denis &Schiffermüller).文中给出了中国锥羽蛾属的分种检索表,并提供了成虫图和外生殖器特征图.研究标本及模式标本分别保存在南开大学生物系昆虫标本室和中国科学院动物研究所昆虫标本馆.     

河北省蚱属二新种记述(直翅目,蚱科)

记述采自河北省小五台山地区蚱属2新种,小五台山蚱Tetrix xiaowutaishanensis sp.nov.及假仿蚱Tetrix pseudosimulans sp.nov.。新种的模式标本保存于陕西师范大学动物研究所(正模标本)及河北大学博物馆(副模标本)。     

中国草螟亚科两新种(鳞翅目,螟蛾科,草螟亚科)

描述了草螟亚科2新种:四尖突金草螟Chrysoteuchia quadrapicula sp.nov.和刚毛微草螟Glaucocharis setacea sp.nov..首次对叉形微草螟G.furculella Wang＆Song的雌性进行了描述,绘制了新种和叉形微草螟的外生殖器图.同时报道了中国2新纪录种:喜马拉雅微草螟G.himalayana Gaskin和阿萨姆微草螟G.assamensis Gaskin.目前中国有微草螟属记录46种.四尖突金草螟Chrysoteuchiaquadrapicula sp.nov.的抱器背无突起,阳茎内有多于10枚的角状器.雌性交配囊口端有4个小的长突起.正模♂,四川万县(30.8°N,108.3°E),海拔1 200 m,1993-08-12,宋士美采.副模1♂,1♀,贵州梵净山(27.9°N,108.6°E),海拔1 300m,2001-08-01,李后魂采;副模1♂,湖北咸丰(29.8°N,114.2°E),海拔1 280 m,1999-07-22,采集人相同.正模保存在中国科学院动物研究所,副模保存在南开大学生物系.刚毛微草螟G.setacea sp.nov.的爪形突基部有一对长刚毛,阳茎内有1枚大型和5枚小型角状器.正模♂,湖北五峰(30.2°N,110.6°E),海拔1 000 m,1999-07-12,李后魂采.模式标本保存在南开大学生物系.叉形微草螟的交配孔宽大;交配腔呈漏斗形;交配囊内有两枚星形囊片.     

中国外斑腿蝗属两新种(直翅目,蝗总科,斑腿蝗科,斑腿蝗亚科)

记述了采自中国台湾斑腿蝗科外斑腿蝗属Xenocatantops Dirsh,1953的2新种.台湾外斑腿蝗X.taiwanensis sp.nov.近似Xenocatantops sauteri(Ramme,1941),区别特征为前翅较长,超过后足股节中部,到达肛上板的中点;颜面隆起具纵沟,两侧近平行,中部微缩狭;前胸腹板突圆柱形,端圆形.长翅外斑腿蝗X.longipennis sp.nov.近似Xenocatantops luteitibia Zheng et Jiang,2002,区别特征为后足股节粗壮,长为最宽处的3.7倍;触角中段一节的长为宽的1.1～1.3倍;前胸背板缺小黑点.并附外斑腿蝗属中国已知种的检索表.模式标本保存于国立自然科学博物馆,台中.     

中国真片叶蜂属(膜翅目,叶蜂科)四新种

记述采自中国河南的真片叶蜂属4新种:短室真片叶蜂Eutomostethus brevicellus Wei et Niu,sp.nov.,狭突真片叶蜂Eutomostethus lineituberculus Wei et Niu,sp.nov.,白腹真片叶蜂Eutomostethus albiventralinus Wei et Niu,sp.nov.和假亮真片叶蜂Eutomostethus pseudometallicus Wei et Niu,sp.nov..新种模式标本保存于湖南长沙中南林业科技大学昆虫模式标本室.     

中国小石蛾属四新种记述(毛翅目,小石蛾科)

记述小石蛾属Hydroptila 的4新种,双钩小石蛾H.biuncialis Zhou et Yang,sp.nov.(江西),细角小石蛾H.leptocera Zhou et Yang,sp.nov.(江西,广西),内刺小石蛾H.introspinata Zhou et Sun,sp.nov.(黑龙江)和长板小石蛾H.longitabularis Zhou et Yang,sp.nov.(广西);编写了我国小石蛾属分种检索表.模式标本保存于南京农业大学昆虫标本馆.     

中国东洋区三突多足摇蚊亚属两新种(双翅目,摇蚊科)

记述了我国东洋区三突多足摇蚊亚属（Tripodura Townes）2新种。双刺多足摇蚊Polypedilum（Tripodura）bispinumsp.nov.（图1～5）本种与裸突多足摇蚊P.（T.）nudiprostatum Zhang＆Wang相似,区别在于此新种r4＋5翅室具有2个翅斑,m1＋2和m3＋4翅室端部具云状斑,肛尖矛尖状,肛尖侧突覆有微毛,上附器内侧中部具2个刺状刚毛。正模♂,海南黎水县吊罗镇,1989-05-20,灯诱,王新华采。抹刀多足摇蚊,新种Polypedilum（Tripodura）spathum sp.nov.（图6～10）本种可借如下特征区别于本亚属已知种：上附器呈抹刀形;前足比高（2.63-2.89,2.75）;第9背板中部刚毛少,2～3根;下附器长、刚毛少,具2～3根刚毛。正模♂,云南勐腊县勐伦镇,1987-04-12,灯诱,邹环光采。本研究所用标本存放在南开大学生命科学学院摇蚊研究室。     

青海省蚱属一新种记述(直翅目,蚱科)

记述采自青海省蚱属1新种,即黑胫蚱Tetrix nigrotibialis sp.nov.。新种近似于二斑蚱Tetrix bipunctata(Linnaeus)及拟二斑蚱Tetrixparabi punctata Zheng,其与上述2种的主要区别:1)前胸背板前缘平直;2)触角长于前足股节长的1.3倍;3)侧面观前胸背板上缘弧形隆起,中部平直;4)肩部之间不具1对短纵隆线;5)前胸背板后突到达后足股节顶端;6)后足股节下侧及后足胫节黑色。模式标本保存于陕西师范大学动物研究所昆虫标本室(正模)及青海师范大学生命与地理科学学院(副模)。     

新疆阳蝇属Helina R.—D.二新种（双翅目：蝇科）

记述采自新疆蝇属Helina R.-D．2新种,托木尔阳蝇Helina tuomuerra,sp,nov。和新疆阳蝇Helina xinjiangensis,sp.nov.模式标本保存于中国科学院动物研究所。     

MORPHOLOGY AND MOLECULAR ANALYSES OF THREE TOXIC SPECIES OF GAMBIERDISCUS (DINOPHYCEAE): G. PACIFICUS, SP. NOV., G. AUSTRALES, SP. NOV., AND G. POLYNESIENSIS, SP. NOV.

Three new dinoflagellate species, Gambierdiscus polynesiensis, sp. nov., Gambierdiscus australes, sp. nov., and Gambierdiscus pacificus, sp. nov., are described from scanning electron micrographs. The morphology of the three new Gambierdiscus species is compared with the type species Gambierdiscus toxicus Adachi et Fukuyo 1979, and two other species: Gambierdiscus belizeanus Faust 1995 and Gambierdiscus yasumotoi Holmes 1998. The plate formula is: Po, 3′, 7", 6C, 8S, 5‴, 1p, 2". Culture extracts of these three new species displayed both ciguatoxin- and maitotoxin-like toxicities. The following morphological characteristics differentiated each species. 1) Cells of G. polynesiensis are 68–85 μm long and 64–75 μm wide, and the cell’s surface is smooth. They are identified by a large triangular apical pore plate (Po), a narrow fish-hook opening surrounded by 38 round pores, and a large, broad posterior intercalary plate (1p) wedged between narrow postcingular plates 2‴ and 4‴. Plate 1p occupies 60% of the width of the hypotheca. 2) Cells of G. australes also have a smooth surface and are 76–93 μm long and 65–85 μm wide in dorsoventral depth. They are identified by the broad ellipsoid apical pore plate (Po) surrounded by 31 round pores and a long and narrow 1p plate wedged between postcingular plates 2‴ and 4‴. Plate 1p occupies 30% of the width of the hypotheca. 3) Cells of G. pacificus are 67–77 μm long and 60–76 μm wide in dorsoventral depth, and its surface is smooth. They are identified by the four-sided apical pore plate (Po) surrounded by 30 round pores. A short narrow 1p plate is wedged between the wide postcingular plates 2‴ and 4‴. Plate 1p occupies 20% of the width of the hypotheca. These three newly described species were also characterized by isozyme electrophoresis and DNA sequencing of the D8–D10 region of their large subunit (LSU) rRNA genes. The consistency between species designations based on SEM microscopy and classification inferred from biochemical and genetic heterogeneities was examined among seven isolates of Gambierdiscus. Their classification into four morphospecies was not consistent with groupings inferred from isozyme patterns. Three molecular types could be distinguished based on the comparison of their LSU rDNA sequences. Although G. toxicus TUR was found to be more closely related to G. pacificus, sp. nov. than to other G. toxicus strains, the molecular classification was able to discriminate G. polynesiensis, sp. nov. and G. australes, sp. nov. from G. toxicus. These results suggest the usefulness of the D8–D10 portion of the Gambierdiscus LSU rDNA as a valuable taxonomic marker.     

中国罗甲螨科一新纪录属及一新种记述(蜱螨亚纲,甲螨目,罗甲螨科)(英文)

波利甲螨属Paulianacarus全世界过去已知12种,中国无记录。记述采自福建龙岩的中国新纪录该属及1新种,龙岩波利甲螨P.(P.)longyanensis sp.nov.;提议2新组合P.(M.)foliatus Mondal et Chakrabarti,comb.nov.和P.(M.)sarbias Coetzee,comb.nov.;编制了波利甲螨属2亚属12个种分种检索表;详细描述了新种的形态特征并绘制了整体特征图,比较了新种与其近似种P.(P.)simplisetosus Mahunka,1985的区别特征。研究标本保存于贵州大学昆虫研究所。龙岩波利甲螨,新种P.(P.)longyanensis sp.nov.(图1～2)浅褐色,筒形,体长842(838～846)μm,体宽476(473～477)μm。新种与P.(P.)simplisetosus M ahunka相似,主要区别特征如下:体表具网状结构;背板具有一些粗糙的不规则斑状结构;背部和腹部均无孔状结构;第1基节板具增生毛,基节板毛式为7-2-3-4。正模1头,福建龙岩,2009-01-20,胡展育采。副模2头,采集信息同正模。词源:新种种名源自采集地点龙岩。