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铜色长角沼蝇的习性和生活史的初步观察(双翅目:沼蝇科) 总被引:1,自引:0,他引:1
长角沼蝇属幼虫可捕食鸭血吸虫(毛毕吸虫属)的中间宿主椎实螺。鸭血吸虫的尾蚴也可导致人的稻田皮炎;另一方面.长角沼蝇属的卵又是稻螟赤眼蜂(稻田螟虫卵的天敌)天然的交替寄主:因此长角沼蝇对卫生和农业都是有益的.本初步观察了华东地区一种常见的长角沼蝇——铜色长角沼蝇的成蝇形态特征、活动场所.出现季节,螺类宿主、幼虫食性和生活史.成虫寿命在春季为2个月。夏季为40-50天,一卵块通常含20-30个卵;幼虫以活椎实螺饲养.幼虫是否能攻击活的椎实螺,视幼虫期和宿主螺大小有关;自卵产下发育到羽化为成虫,平均温度在26℃时约需20天,在32℃时约为13天。 相似文献
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上海常见蝇类幼虫小志 总被引:6,自引:0,他引:6
本文用检索表的方式报告了采自上海的50多种与人类杂处的常见蝇类和其他双翅类的幼虫鉴别特征;其中34种(内3种非上海产)有种的鉴别特征,其余的有些仅鉴别到属、亚科或科。对过去还未见记载的元厕蝇和斑跖黑蝇的幼虫、以及绯胫纹蝇和突额家蝇的蛹的形态,文内作了必要的描述。从绯胫纹蝇的口咽器和卵的形态看来,纹蝇属是与棘花蝇类很近缘的。 相似文献
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叉麻蝇属(Robineauella)系麻蝇科、麻蝇亚科中一个较小的属,由Enderlein氏在1928年以巨叉麻蝇(R.scoparia Pandell?,1896)为属模而建立。1937年Rohdendorf氏将它降为亚麻蝇属(Parasarcophaga)的一个亚属,并将伪叉麻蝇(R.pseudoscoparia Kramer,1911)归在该亚属内,翌年,氏记述了产于锡霍特山区的该亚属另一个种阔叶叉麻蝇(R.grunini)。此后,到1964年范滋德氏以伪叉麻蝇为亚属模建立了腹指麻蝇亚属(Digitiventra)与Robineauella并列为亚麻蝇属的两个亚属,并描述了锚形叉麻蝇(R.anchoriformis)隶属于前者,黄山叉麻蝇(R.huangshanensis)隶属于后者。同年,Kano et Field 相似文献
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中国蚤蝇属记述:双翅目:蚤蝇科 总被引:1,自引:0,他引:1
中国蚤蝇属记述(双翅目:蚤蝇科)刘广纯,周尧(西北农业大学昆虫博物馆,陕西省杨陵区712100)关键词双翅目,蚤蝇科,蚤蝇属,新种,分类学,中国蚤蝇属(PhoraLatreille,1796)是蚤蝇科中较大的类群;其身体绒黑(♂)或暗黑(♀),中足胫... 相似文献
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四川西部蝇科三新种(双翅目:蝇科) 总被引:2,自引:0,他引:2
整理1979~1996年采自中国四川省西部的蝇类标本中,发现蝇科三新种:树棘蝇属 Potamia Robineau-Desvoidy, 1830一新种:鬃跗树棘蝇Potamia setitarsis sp. nov.; 胡蝇属 Drymeia Meigen,1826一新种:四川胡蝇Drymeia sichuanensis sp. nov; 池蝇属 Limnophora Robineau-Desvoidy, 1830一新种:灰黄池蝇 Limnophora cinerifulva sp. nov。模式标本存北京军事医学科学院医学昆虫标本馆。 相似文献
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整理新疆地区蝇科标本中,发现棘蝇亚科Phaoniinae一新属和一新种,命名为华棘蝇属Sinophaonia新属,模式种为栉胫华棘蝇S. pectinitibia新种。模式标本保存于沈阳师范学院昆虫研究所。 相似文献
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中国四川阳蝇属二新种及华西粪蝇补充描述(双翅目:蝇科,粪蝇科) 总被引:3,自引:0,他引:3
报道中国四川地区蝇科阳蝇属Helina Robineau-Desvoidy,1830二新种,黑肩阳蝇Helina ateritegula,sp.nov.,拱阳蝇Helina arcuatiabdomina,sp.nov.,并对粪蝇科粪蝇属Scathophaga Meigen,1803的华西粪蝇Scathophaga chinensis (Malloch,1935)作补充描述,新种模式标本存中国科学院上海昆虫研究所昆虫标本馆。 相似文献
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对近来记述的古北区东部地区的毛地蜂属Panurginus Nylander全部14个种作了补充研究。中国对该属的研究较少,仅知2种:黑足毛地蜂Panurginus nigripes Morawitz 和黄跗毛地蜂Panurginus flavotarsus ? Wu。黑毛地蜂Panurginus niger Nylander为该属的模式种,分布于俄罗斯和蒙古,本文报道该种为中国新记录种。目前,中国已知该属3种,分属于2个组即niger-group和herzi-group。文中提供了中国已知种类检索表。 相似文献
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《Journal of bryology》2013,35(3):161-164
AbstractThe genus Lobatiriccardia Furuki is reported as new to China, from the Dulong River valley, Gaoligong Shan range, Yunnan Province and this material is described as a new species endemic to China, Lobatiriccardia yunnanensis Furuki & D.G. Long, the fifth known species in the genus. The differences between the new species and the other members of the genus are enumerated, along with a key to all known species of Lobatiriccardia. 相似文献
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John S. Karling 《Archives of microbiology》1971,76(2):126-131
Summary The operculate genus Chytridium Braun is emended and restricted to approximately 25 known species and several incompletely known members which lack an apophysis and develop much like species of Rhizophydium, insofar as the zoosporangium and absorbing or rhizoidal system are concerned, and form endobiotic or intramatrical resting spores. This interpretation corresponds fairly closely to Braun's diagnosis of the type species.A new genus, Diplochytridium, is established to segregate the former Chytridium species with an endobiotic or intramatrical apophysis or prosporangium and resting spores, which may develop sexually or asexually. Some of these species have a well-defined endo-exogenous alternation of growth and development in which the apophysis appears to function as a prosporangium. As interpreted here, Diplochytridium includes approximately 20 of the known species.Another new genus, Canteria, is created for a parasite of Mougeotia which Canter first described as a species of Phlyctidium but later found to develop endobiotic resting spores or zygospores by the fusion of conjugation tubes. 相似文献
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Middle Jurassic fossils of the genus Sharasargus from Inner Mongolia, China (Diptera: Archisargidae)
To date, only two species of the genus Sharasargus are known. These Upper Jurassic species were found in Mongolia and Kazakhstan, respectively. We herein describe two new species from the Middle Jurassic, which were found in Inner Mongolia, China. They are the oldest known fossils of this genus. A key to Sharasargus species is given. 相似文献
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The genus Thambemyia Oldroyd is reported on Chinese mainland for the first time with one known species (T. rectus) and one new species for science (T. shandongensis sp. nov.). A key to the three species of the genus from China is provided. 相似文献
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Shirley A. Graham 《American journal of botany》1989,76(10):1530-1540
The American genus Cuphea with ca. 260 species is extremely diverse with respect to chromosome number. Counts are now available for 78 species and/or varieties, or 29% of the genus. Included in this study are first reports for 15 taxa from Brazil, Cuba, Dominican Republic, Mexico, and Venezuela. Twenty-two different numbers are known for the genus, ranging from n = 6 to n = 54. The most common number in the primary center of species diversity in Brazil is n = 8, which is regarded as the base number of the genus. Two numbers are most common in the secondary center in Mexico, n = 10 and n = 12. Species with n = 14 or higher are considered to be of polyploid origin. Polyploids comprise 46% of the total species counted and appear in 9 of the 11 sections for which chromosome numbers have been reported. Aneuploid species comprise ca. 25% of the genus and are known from 7 of the 11 sections. The two subgenera are not characterized by different chromosome numbers or sequences of numbers. None of the 14 sections are circumscribed by a single chromosome number. Morphological and ecological variability in widespread, weedy species is correlated with differing chromosome numbers in some species whereas in others the chromosome number is stable. Summary of chromosome numbers by taxonomic section is presented. Section Euandra, centered in eastern Brazil, and the largest section of the genus, appears to be chromosomally most diverse. In section Trispermum, characterized by difficult, variable species with intermediate forms, two of the four species studied have polyploid races. Section Heterodon, endemic to Mexico and Central America and comprising most of the annual species of the genus, is best known chromosomally. Chromosome numbers have been counted for 25 of 28 species, and 12 different numbers are reported. The most advanced sections, Melvilla and Diploptychia, with numerous species occurring at higher altitudes, are characterized by high polyploids. Apomictic species occur in sect. Diploptycia. The cytoevolution of Cuphea is complex with frequent polyploid and aneuploid events apparently playing a significant role in speciation in both centers of diversity. 相似文献
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The genus Thambemyia Oldroyd is revised. Five species are recognized. Three new species –T. bisetosa, T. bruneiensis and T. hui– are described, and T. pagdeni Oldroyd, 1956 is redescribed. A new subgenus is founded for one new Japanese species, T. (Prothambemyia) japonica. A key to all known species of the genus is provided. Their distributions are also discussed. 相似文献
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Yoshihiko Machida Junsheng Zhong Hiromitsu Endo Hanling Wu 《Ichthyological Research》2002,49(2):194-197
A rare deep-sea ophidiid genus Mastigopterus known to contain two species, M. imperator Smith and Radcliffe, 1913 and M. praetor Smith and Radcliffe, 1913, was reviewed on the basis of six specimens including the holotypes of both species. Dorsal and
anal fin ray counts and the size of cephalic sensory pores previously thought to be diagnostic characteristics to discriminate
the two species did not suggest the presence of two forms, the large (M. imperator) and the small species (M. praetor), in the genus. Apparently the genus is represented by a single species, M. imperator, known from off Madagascar, the East and South China Seas and Papua New Guinea.
Received: September 7, 1999 / Revised: July 9, 2001 / Accepted: November 13, 2001 相似文献