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1.
记述采自新疆北部喀纳斯湖地区网翅蝗科雏蝗属Chorthippus 1新种,喀纳斯雏蝗Ch.kanasensissp.nov.。模式标本保存于陕西师范大学动物研究所标本室。喀纳斯雏蝗,新种Chorthippus kanasensis sp.nov.(图1~7)新种近似于恒山雏蝗Ch.henshanensis Ma,Guo et Zheng,1995,与后者的主要区别为:前胸背板侧隆线间最宽处为最狭处的2.0倍(♂)或2.3倍(♀);前翅略不到达后足股节端部(♂)或到达后足股节端部(♀);翅长为宽的4.0倍(♂)或5.6倍(♀);径脉域的最宽处约为亚前缘脉域宽度的1.5倍(♂);中脉域宽为肘脉域宽的1.5倍。正模♂,新疆布尔津县喀纳斯湖(48°19’N,87°02’E;海拔1374m),2005-08-08,王延峰、杨亮、张陵采。副模:1♂,3♀♀,同正模。词源:新种种名源自正模的产地。  相似文献   

2.
记述采自中国四川省网翅蝗科雏蝗属Chorthippus(Altichorthippus)1新种:周氏雏蝗Chorthippus(Altichorthippus)choui sp.nov.。本新种同昌都雏蝗Chorthippus(A.)changtunensis Yin,1984近似,其区别特征为:后足股节和胫节桔红色;雄性腹部末端桔红色;前翅中脉域宽为肘脉域宽的1.2倍;本新种同西藏雏蝗Ch.(A.)tibetanus Uvarov,1935也近似,其区别特征为前胸背板侧隆线在沟前区明显,呈角状弯曲,在前横沟和后横沟之间不消失。  相似文献   

3.
新疆天山地区雏蝗属一新种(直翅目,网翅蝗科)   总被引:1,自引:1,他引:0  
记述采自新疆天山地区雏蝗属1新种,即天山雏蝗Chorthippus tianshanensis sp.nov.,新种近似于红胫雏蝗Chorthippus rufitibis Zheng,1989,主要区别为:1)前胸背板沟后区长为沟前区的1.1倍;2)前翅较狭长,翅长为宽的4.1倍;3)前缘脉域宽为径脉分支处宽的1.7倍;4)前缘脉域宽为亚前缘脉域宽的2.6倍;5)后足胫节黄褐色.模式标本保存于陕西师范大学动物研究所昆虫标本室及山西大学生命科学与技术学院.  相似文献   

4.
记述采自新疆地区网翅蝗科雏蝗属 Chorthippus 短翅亚属1新种,即果子沟雏蝗 Chorthippus (Altichorthippus) guozigouensis sp. nov.。新种近似于姜氏雏蝗Ch. charpini Chang, 1939 与积石山雏蝗 Ch. jishishanensis Zheng et Xie, 2000。与后两者的主要区别为:♂头侧窝长为宽的3.00倍;♂触角短,刚不到达后足股节基部;♂前翅到达第7节腹节背板后缘,其前缘脉域宽为中脉域宽0.67倍,前后肘脉合并,肘脉域消失;♂后翅到达第7节腹节背板中部;尾须顶端到达肛上板长的一半,膝部与后足胫节端部棕色,非黑色。模式标本保存于陕西师范大学动物研究所标本室。  相似文献   

5.
记述采自新疆西北部网翅蝗科雏蝗属Chorthippus1新种,即温泉雏蝗Chorthippus wenquanensis sp. nov.。新种近似于黄胫雏蝗C. rufitibialus,与后者的主要区别为(♂):复眼纵径约为眼下沟长度的1.8-1.9倍;前胸背板侧隆线间最宽处为最狭处的2.0倍;后足跗节爪间中垫小,略短于爪长的一半;后足胫节基部黄褐色,非黑色;爪基部淡蓝色。模式标本保存于陕西师范大学动物研究所标本室。  相似文献   

6.
记述采自中国湖南的蹦蝗属Sinopodisma Chang,1940一新种。新种湖南蹦蝗Sinopodisma hunanensis sp.nov.同笋子山蹦蝗S.sunzishanensis Zheng,Shi et Chen,1994近似,区别特征为前胸背板沟前区为沟后区长的2.3倍;中胸腹板中隔长为最狭处的2倍;前翅超出腹部第1节背板的后缘;后足股节黄褐色;阳茎基背片锚状突高于前突。模式标本保存于河北大学自然博物馆。  相似文献   

7.
记述了采自江苏泗阳县网翅蝗科1新属——苏蝗属Suacris gen.nov.及1新种——Suacris siyangensis sp.nov..该新属近似于牧草蝗属Omocestus I.Bol.,其主要区别特征为:前胸背板侧隆线微微弯曲,最宽处为最窄处的1.6~1.8倍;前翅肘脉域几乎等宽或略宽于中脉域;鼓膜器雄性宽卵形、雌性狭缝状.该新属也近似于拟草地蝗属Stenobothroides Xu et Zheng,其主要区别特征为:侧隆线明显且弯曲;雄性腹部末节无尾片;雄性下生殖板长锥形.新种模式标本保存于中国科学院西北高原生物研究所.1 苏蝗属,新属Suacris gen.nov. 模式种:泗阳苏蝗Suacris siyangensis sp.nov. 正模:1♂;副模:1♀,江苏泗阳,1957-Ⅸ-16,采集者未知. 体小型.头大而短,较短于前胸背板.头侧窝明显,呈长方形.颜面向后倾斜.中单眼较小于侧单眼.触角丝状,基部触角节宽大于长,向端部触角节渐渐变狭.前胸背板中隆线明显,侧隆线在沟前区微微弯曲,其最宽处约为最窄处的1.6~1.8倍;前胸背板后缘中央钝角形.前、后翅发达,超过后股节中部,前翅顶端圆形,无凹陷,前翅肘脉域几乎等宽或略宽于中脉域.中、后胸腹板侧叶全长均明显地分开.后足股节内侧具发音齿,可与前翅纵脉磨擦发音.后足胫节缺外端刺.鼓膜器:雄性宽卵形,雌性宽缝状.  相似文献   

8.
本文记述了采自黑龙江省五大连池地区无翅蝗属Zubovskia一新种:尾山无翅蝗Z.weishanensis sp.nov.新种近似平尾无翅蝗Z.planicaudata Zhang et Jin,主要区别为前胸背板沟前区长度为沟后区长度的2.51-3.00倍;中胸腹板侧叶间中隔较狭,最狭处略小于其长;阳具基背片形状不同。  相似文献   

9.
记述采自东北黑龙江省及吉林省蝗总科2新种,即网翅蝗科的北安雏蝗Chorthippus beianensis sp.nov..新种近似于琼根河雏蝗Chorthippus genheensis Li et Yin,主要区别为触角中段一节的长度为宽度的2.5倍;前翅中脉域宽为肘脉域宽的4倍(♂);后翅仅达前翅长的1/2;雌性前翅仅到达第3腹节背板后缘;后足股节仅上膝侧片黑色.另1新种为剑角蝗科的宽肘迷蝗Confusacris amplicubitus sp.nov.,该种近似于短翅迷蝗Confusacris brachypterus Yin et LI,主要区别为触角中段一节的长度为宽度的3~4倍(♂)或2倍(♀);中胸腹板侧叶间中隔最狭处宽与长度相等(♂)或为长的1.4倍(♀);前翅超过后足股节中部;前翅肘脉域宽为中脉域宽的2.3倍;雌性前翅径脉域黑色,不具淡色纹;后足股节膝侧片及胫节基部非黑色.模式标本保存于陕西师范大学动物研究所昆虫标本室.  相似文献   

10.
记述了采自江苏泗阳县网翅蝗科1新属-苏蝗属Suacris gen.nov.及1新种-Suacris siyan-gensis sp.nov.。该新属近似于牧草蝗属Omocestus I.Bol.,其主要区别特征为:前胸背板侧隆线微微弯曲,最宽处为最窄处的1.6-1.8倍;前翅肘脉域几乎等宽或略宽于中脉域;鼓膜器雄性宽卵形、雌性狭缝状。该新属也近似于拟草地蝗属Stenobothroides Xu et Zheng,其主要区别特征为:侧隆线明显且弯曲;雄性腹部末节无尾片;雄性下生殖板长锥形。新种模式标本保存于中国科学院西北高原生物研究所。1 苏蝗属,新属Suacris gen.nov.模式种:泗阳苏蝗Suacris siyangensis sp.nov.正模:1♂;副模:1♀,江苏泗阳,1957-Ⅸ-16,采集者未知。体小型。头大而短,较短于前胸背板。头侧窝明显,呈长方形。颜面向后倾斜。中单眼较小于侧单眼。触角丝状,基部触角节宽大于长,向端部触角节渐渐变狭。前胸背板中隆线明显,侧隆线在沟前区微微弯曲,其最宽处约为最窄处的1.6-1.8倍;前胸背板后级中央钝角形。前、后翅发达,超过后股节中部,前翅顶端圆形,无凹陷,前翅肘脉域几乎等宽或略宽于中脉域。中、后胸腹板侧叶全长均明显地分开。后足股节内侧具发音齿,可与前翅纵脉磨擦发音。后足胫节缺外端刺。鼓膜器:雄性宽卵形,雌性宽缝状。  相似文献   

11.
Two new planktonic diatom species of the genusChaetoceros are described herein:Ch. octagonus andCh. rectus, from material of Baja California coasts and the Gulf of California, respectively;Ch. rectus was also found in a sample from Australian waters.Ch. octagonus is a robust species, with a characteristic pyramidal valve shape, heavily silicified valves and setae, and one central rimoportula on every valve in the chain; it is compared with related species, which show a similar morphology, especially by electron microscopy. It belongs into subg.Chaetoceros, sect.Borealia. Ch. rectus is placed in subg.Hyalochaete, and provisionally within sect.Anastomosantia. Its major characters are: chains, cells, and setae are delicate and fragile, cells are joined in the chain by a bridge which connects sibling intercalary setae, valves and setae are weakly silicified, and one rimoportula is present on terminal valves only. Comparison is made with another species of the same section.Ch. rectus shows a different manner of chain-forming within the genus than previously described in the literature.  相似文献   

12.
13.
A new strict gypsophilous species of Chaenorhinum, Ch. gamezii, is described. It is an annual to perennial species found in extremely arid locations upon Triassic gypsic habitats in the south-eastern Iberian Peninsula. This species has an eglandular heterotrichous indumentum, which is related to Ch. segoviense and Ch. flexuosum. However, Ch. gamezii has a characteristic combination of vegetative and micromorphological features (trichomes and ornamentation of the seeds) that are not present in any other taxon of the genus. Herein, the affinities and differences with related species are studied and discussed. For its differentiation, an original key is presented with comparative figures of indumentum and seeds, and a complete iconography. Knowledge of the species ecology, biogeography, demography and threats is also provided, and according to that, Ch. gamezii should be considered as a critically threatened species (critically endangered, according to IUCN criteria). Future conservation proposals are discussed.  相似文献   

14.
15.
Four species of a new genus, Chomsiipites—Ch. libanicus sp. nov., Ch. pyriformis sp. nov., Ch. dzyubae sp. nov., and Ch. zaklinskaiae (Azèma et Boltenhagen) comb. nov.—are described from the Albian-Cenomanian of western part of Central Lebanon, Eastern Caspian Region, Albian-Turonian of Gabon, and Albian-Senonian of Angola (Equatorial Africa).  相似文献   

16.
Chrysolina undulata asperata Lopatin is promoted to the species Chrysolina asperata Lop., stat. n., and is redescribed. A new species, Chrysolina tatianae Mikhailov sp. n. closely related to Ch. ordinata Gebl., is described from the Narymo-Bukhtarminskaya Depression, based on the adults and 2nd-instar larva. New data on the ecology and distribution of Chrysolina kabaki Lop., Ch. katonica Lop., and Ch. oirota Lop. are given.  相似文献   

17.
A new species, Chrysis vicana sp. n., and the previously unknown male of Ch. neobule are described. The basic morphological differences between the new species and the closely related Chrysis neobule Sem. are given. Chrysis vicana differs from Ch. neobule in the presence of an intense blue sheen on the tegulae and the 1st antennal segment, in the clearly pronounced and short frontal carina, in the coloration of abdominal sternite II, in the brown tarsi, almost black venation, and closed radial vein of the wings. Chrysis vicana is recorded on clay and sandy slopes, and Ch. neobule, on clay and sandy slopes and in dead woods in the middle part of the Kuma River basin (Stavropol Territory).  相似文献   

18.
Six taxa of genusChamaecrista are described: In sect.Apoucouita (Bentham) Irwin & Barneby,Ch. amorimii Barneby andCh. pteropoda Barneby, both from Atlantic Bahia; in sect.Absus ser.Incurvatae Irwin & Barneby,Ch. caspariifolia Barneby andCh. linearifolia var.latifolia Barneby, both from interior Minas Gerais; in sect.Absus ser.Hedysaroides Irwin & Barneby,Ch. fulgida Barneby, from northern Goiás; and in ser.Prostratae (Bentham) Irwin & Barneby,Ch. chiquitana Barneby, from lowland Bolivia. The affinities and differential characters of each are pointed out, and all but var.latifolia are illustrated.  相似文献   

19.
Density patterns ofLipiniella arenicola andChironomus muratensis were studied in Lake Wolderwijd (The Netherlands) using geostatistics, and compared with patterns of depth and silt contents of the sediment.L. arenicola was restricted to shallow (depth <1 m), sandy silt (silt content <5%), wind-exposed sediments.Ch. muratensis occurred all over the lake, but the highest densities were found in the sheltered silty North-West corner. Gut analyses of IV-instar larvae from the Ventjagers flats (Haringvliet, Lower Rhine-Meuse) showed thatL. arenicola fed by selectively grazing on benthic algae,Ch. muratensis by filtering and non-selective grazing, andCh. nudiventris by non-selective grazing. In the laboratory, behavioural responses to reduced oxygen concentrations were tested with the impedance conversion technique.L. arenicola was more sensitive to low oxygen concentrations (<3 mg l–1) than bothChironomus species. It is argued that the differences in resistance to hypoxia and feeding behaviour are in accordance with the differences in distribution patterns. The restriction ofL. arenicola to the pure sand habitats is not attributable to an especially high sensitivity to low dissolved oxygen concentrations alone. Several behavioural adaptations enableL. arenicola larvae to live in the shallow, wind-exposed pure-sand habitats: the ability to select food items, tube strength, and site selection of ovipositing females or planktonic larvae.  相似文献   

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