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本文记述了寡脉摇蚊亚科北摇蚊属一中国新纪录种--长毛北摇蚊Boreochlus longicoxalsetosus Koba-yashi et Suzuki,2000.文中给出了详细描述和特征附图.该种可借生殖节下附器远端表面上有两根显著且长的刚毛而与本属其他已知种相区别. 相似文献
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本文为中国摇蚊亚科系列报道之三,记述了中国产哈摇蚊属Harnischia Kieffer 5种,其中包括3个新种,1个新记录种及短叶哈摇蚊H.curtilamellta. 相似文献
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本文为中国摇蚊亚科系列报道之四,记述了采自海南省的拟隐摇蚊属一新种:宽尖拟隐摇蚊Demicryptochironomus (Irmakia)spatulatus sp.nov.及1中国新记录种:缺损拟隐摇蚊Demicryptochironomus (Irmakia)valneratus (Zettrstedt)。模式标本存南开大学生物系。 相似文献
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R. V. Gorjunova 《Paleontological Journal》2010,44(1):21-35
Based on the study of the neotype and the astogeny of the type specimens of the species Ascopora nodosa (Fischer von Waldheim, 1837), the diagnosis and species composition of the genus Ascopora Trautschold, 1876 are emended. The genus Ascopora and three species out of the five included in this genus—A. nodosa (Fischer von Waldheim, 1837); A. sokolovae Schulga-Nesterenko, 1955; and A. latiaxis Schulga-Nesterenko, 1955—are described. A new genus, Tetrasella gen. nov., with the type species T. blanda sp. nov. is described. This genus comprises five species, transferred from the composition of the genus Ascopora. An emended diagnosis of the genus Ascoporella Krutchinina, 1986, is provided. This genus comprises nine species, of which two, A. lecta sp. nov. and A. mera sp. nov., are described as new species. 相似文献
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Navarro Elisabeth Bousquet Jean Moiroud André Munive Antonio Piou Dominique Normand Philippe 《Plant and Soil》2003,254(1):207-217
The nuclear ITS region of 19 species of Alnus was amplified and sequenced. The inferred molecular phylogeny shows that all species of the genus Alnus form a monophyletic group close to Betula and that the fundamental dichotomy within the genus lies between the subgenera Alnaster and Gymnothyrsus, sensu Murai (1964). The subgenus Alnaster appears to be basal in the genus, based on archaism of morphological features, and branching close to the root of the trees due to low ITS divergence from genus Betula. The monophyly of the section Clethropsis is not supported by the present data: Alnus nepalensis is positioned in the subgenus Gymnothyrsus, away from A. nitida and A. maritima. Surprisingly, A. formosana sect. Japonicae is closely tied to A. maritima sect. Clethropsis, with which it shares few morphological traits, and is separate from A. japonica sect. Japonicae with which it shares many traits. An increase in substitution rate is noted in the group comprising A. formosana, A. maritima and A. nitida relative to the rest of the genus, which appears to have had, on the average, a very slow mutation rate. Alnus
glutinosa, the designated type for the genus, appears to be representative of the genus both for morphological characters and evolutionary rate. North-East Asia is comforted in its position of origin of the genus since not only does it have the highest number of species and representatives in all deep branching lineages, there are also fewer transcontinental migrations when a North-East Asian ancestor is postulated than when a North American ancestor is postulated. 相似文献
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A new genus of sand‐dwelling photosynthetic dinoflagellate, Testudodinium Horiguchi, Tamura, Katsumata et A. Yamaguchi is proposed based on Testudodinium testudo (Herdman) Horiguchi, Tamura, Katsumata, et A. Yamaguchi comb. nov. (Basionym: Amphidinium testudo Herdman) and a new species in this new genus, Testudodinium maedaense Katsumata et Horiguchi sp. nov. is described. Amphidinium corrugatum is also transferred to this genus, making a new combination T. corrugatum (Larsen et Patterson) Horiguchi, Tamura et A. Yamaguchi. These three species are similar to the members of the genus Amphidinium in having an extremely small episome and a dorsoventrally flattened cell body. They are, however, distinguished from the genus Amphidinium seusu stricto by the possession of a distinct longitudinal furrow in the middle of ventral side of the episome. Phylogenetic trees based on small subunit (SSU) rDNA revealed that all three of these Testudodinium species formed a robust clade and, although statistical support is not high, the tree suggests Testudodinium clade is not closely related to Amphidinium seusu stricto clade. The morphological differences together with molecular data support the establishment of a new genus for A. testudo and its related species. 相似文献
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A. A. Legalov 《Paleontological Journal》2010,44(6):654-656
The genus Arnoldibelus is reviewed. Two new species, A. zherichini and A. gratshevi, closely related to A. karatavicus, from the Middle-Late Jurassic of the Karatau Mountains are described. An identification key to species of the genus Arnoldibelus is provided. 相似文献
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Günther Fleck 《法国昆虫学会纪事》2013,49(1-2):225-228
Three new species of the genus Aeschnosoma are briefly described and illustrated. A. pseudoforcipula n. sp. and A. heliophila n. sp., both from the Brazilian Central Plateau are respectively related to the two Amazonian species A. forcipula Hagen in Selys 1871, and A. auripennis Geijskes 1970. A. louissiriusi n. sp. from Northern Brazil is not closely related to any known species. Based on larval and adult derived characters, the genus Aeschnosoma appears closely related to the Australian genus Pentathemis Karsch 1890, and also to the Madagascan genus Libellulosoma Martin 1907. The clade Aeschnosomata nov. is erected to receive the three genera. Some putative plesiomorphies would place this clade sister group of the remaining Corduliidae s.str. 相似文献
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A new genus, Tiaobeinia n. gen., and two new species, T. bisubula n. sp. and T. emeiensis n. sp., breeding on bamboo in Southwest China, are described and illustrated. Based on the nature of the face, the apical veins of forewing and hindwing, the hind femur macrosetal formula, the valve, the subgenital plate, and the style, this genus should belong to the subfamily Mukariinae. The related genus Ratfronta Chen & Li 1997, placed previously in subfamily Nirvaninae, is noted in the present paper. A new combination, F. grandis (Ishihara 1961) n. comb., transferred from the genus Mohunia Distant, is proposed. Keys to the species of the new genus Tiaobeinia and the genus Flatfronta are provided. The importance of those groups as pests on bamboo is briefly discussed. 相似文献
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A new palaemonid shrimp, Leptopalaemon gagadjui, gen. nov., sp. nov., from the Arnhem Land plateau, Australia, is described and illustrated, and its systematic position
discussed. The new genus most closely resembles Leptocarpus Holthuis, 1950, presently known only from India. Palaemonetes holthuisi Strenth is re-examined and excluded from the genus Palaemonetes. A new genus, Calathaemon, is designated for its accommodation. 相似文献
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A new genus, Asiaontsira gen. nov., and two new species, A. cucphuongi sp. nov. (type species) and A. cantonica sp. nov., are described from tropical and subtropical areas of South‐East China and North Vietnam. This genus is compared to the closely related Australian Ontsirospathius Belokobylskij, Iqbal and Austin, 2004 as well as the similar and almost cosmopolitan genus Ontsira Cameron, 1900. A key to both species of Asiaontsira gen. nov. is provided. 相似文献
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Antoine Mantilleri 《法国昆虫学会纪事》2013,49(3-4):439-448
A taxonomic revision of the genus Aneorhachis Kleine 1923 (Coleoptera: Brentidae) and a phylogenetic analysis of species belonging to this genus are carried out. The genus Ipsopisthius Kabakov 2001 is synonymised with Aneorhachis, and two new combinations are proposed: Aneorhachis hirta (Kabakov 2001), n. comb. and A. incerta (Kleine 1935), n. comb. Higonius nitens Goossens 2008 is synonymized with A. incerta. One new species is described from New Guinea, A. papuana n. sp. All the species are redescribed and type-specimens are illustrated; an identification key is proposed. A maximum parsimony analysis is provided on the base of 23 characters from adult morphology. This analysis confirms the monophyly of the genus and seems to show that Aneorhachis originated on continental Asia and then spread out eastward to colonize Pacific islands. 相似文献
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Abaristophora sachalinensis Michailovskaya is reviewed based on Japanese materials. Its male genitalia are compared with those of the genus Borophaga, which is a genus in a group of the related genera, the Borophaga subgroup. A synapomorphic character of the Borophaga subgroup including Abaristophora, the left flattened arm derived from the posterodorsal margin of the hypandrium being broadened at the base, is confirmed in A. sachalinensis. Morphology of the aedeagus in A. sachalinensis is complex and extremely asymmetric, and very similar to that of species of the genus Borophaga, but the characters observed in this study are not regarded as synapomorphic for the Borophaga subgroup. 相似文献