Al was prepared by a new method in molten salt at low temperature. Sintered alumina pellets were used as cathode; graphite rod was employed as anode; and the molten CaCl2-NaCl was the electrolyte. A constant 3.2 V vol...Al was prepared by a new method in molten salt at low temperature. Sintered alumina pellets were used as cathode; graphite rod was employed as anode; and the molten CaCl2-NaCl was the electrolyte. A constant 3.2 V voltage was applied in this experiment, and oxygen in solid alumina cathode was reduced by direct electrochemical deoxidation at 550℃. In this process, the current gradually decreased with increasing time and the alumina pellets became grey and porous. The metallic particles were obtained and characterized by XRD （X-ray diffraction） and SEM （scanning electron microscopy）.展开更多
Eight species of Pseudoligosita(Hymenoptera:Trichogrammatidae)from China are reviewed,including two new species:P.processa sp.nov.and P.qiluensis sp.nov.New distributional data for six species and a key to all the Chi...Eight species of Pseudoligosita(Hymenoptera:Trichogrammatidae)from China are reviewed,including two new species:P.processa sp.nov.and P.qiluensis sp.nov.New distributional data for six species and a key to all the Chinese species of the genus are provided.展开更多
Seven species of the genus Oligosita, a wellknown cosmopolitan genus of the family Trichogrammatidae that comprise egg parasitoids of coleopteran, hemipteran, lepidopteran and thysanopteran insects, are reviewed. Olig...Seven species of the genus Oligosita, a wellknown cosmopolitan genus of the family Trichogrammatidae that comprise egg parasitoids of coleopteran, hemipteran, lepidopteran and thysanopteran insects, are reviewed. Oligosita xinyangensis sp. nov.(Hymenoptera, Trichogrammatidae) is described in detail and illustrated;the male of O. nigroflagellaris Lin is reported for the first time. New distributional data are provided for O. japonica Yashiro, O. mediterranea Nowicki, O. pallida Kryger, O. polioptera Lin and O. shibuyae Ishii from China, and a key to all the Chinese species of the genus is given.展开更多
Leptomastidea angulipennis sp. nov. is described as new to science from Yunnan, China, It can be easily separated from all the other species of the genus by the triangular shape and infuscate pattern of the forewing. ...Leptomastidea angulipennis sp. nov. is described as new to science from Yunnan, China, It can be easily separated from all the other species of the genus by the triangular shape and infuscate pattern of the forewing. Brief diagnoses and new distributional data of L. herbicola and L. rubra are also provided, and a key to the females of all the Chinese species is given.展开更多
Two species of Acerophagus from Yunnan Province, China, are reported. One species, A. ovaliclavus sp. nov., is described as new to science, and one species, A. solidus Hayat is reported as new to China. A key to all d...Two species of Acerophagus from Yunnan Province, China, are reported. One species, A. ovaliclavus sp. nov., is described as new to science, and one species, A. solidus Hayat is reported as new to China. A key to all described species from China based on females is given. All the type materials are deposited in the insect collections of Northeast Forestry University, China.展开更多
Platystethynium glabrum Jin et Li sp. nov. is described from China, and the genus is new to Chinese insect fauna. Diagnostic characters for the new species are given in comparison with the apparently closely related P...Platystethynium glabrum Jin et Li sp. nov. is described from China, and the genus is new to Chinese insect fauna. Diagnostic characters for the new species are given in comparison with the apparently closely related P. onomarchicidum. Two other mymarid species are also newly recognized from China： Mymar africanum Annecke and Anagroidea marina Triapitsyn et Berezovskiy.展开更多
基金supported by the National Natural Science Foundation of China under grant No.50674026the Postgraduate Foundation of Northeastern University in China under grant No.18702016the Innovational Experiment Plan of Undergraduate Student of China under grant No.071014506
文摘Al was prepared by a new method in molten salt at low temperature. Sintered alumina pellets were used as cathode; graphite rod was employed as anode; and the molten CaCl2-NaCl was the electrolyte. A constant 3.2 V voltage was applied in this experiment, and oxygen in solid alumina cathode was reduced by direct electrochemical deoxidation at 550℃. In this process, the current gradually decreased with increasing time and the alumina pellets became grey and porous. The metallic particles were obtained and characterized by XRD （X-ray diffraction） and SEM （scanning electron microscopy）.
基金supported by the Fundamental Research Funds for the Central Universities(Grant No.2572015AA05)
文摘Eight species of Pseudoligosita(Hymenoptera:Trichogrammatidae)from China are reviewed,including two new species:P.processa sp.nov.and P.qiluensis sp.nov.New distributional data for six species and a key to all the Chinese species of the genus are provided.
基金supported by the Fundamental Research Funds for the Central Universities(Grant No.2572015AA05)
文摘Seven species of the genus Oligosita, a wellknown cosmopolitan genus of the family Trichogrammatidae that comprise egg parasitoids of coleopteran, hemipteran, lepidopteran and thysanopteran insects, are reviewed. Oligosita xinyangensis sp. nov.(Hymenoptera, Trichogrammatidae) is described in detail and illustrated;the male of O. nigroflagellaris Lin is reported for the first time. New distributional data are provided for O. japonica Yashiro, O. mediterranea Nowicki, O. pallida Kryger, O. polioptera Lin and O. shibuyae Ishii from China, and a key to all the Chinese species of the genus is given.
基金supported by the National Natural Science Foundation of China(Grant No.31470652)the Fundamental Research Funds for the Central Universities(Grant No.2572015AA31)
文摘Leptomastidea angulipennis sp. nov. is described as new to science from Yunnan, China, It can be easily separated from all the other species of the genus by the triangular shape and infuscate pattern of the forewing. Brief diagnoses and new distributional data of L. herbicola and L. rubra are also provided, and a key to the females of all the Chinese species is given.
基金supported by the National Natural Science Foundation of China(Grant No.31470652)the Fundamental Research Funds for the Central Universities(Grant No.2572015AA31)
文摘Two species of Acerophagus from Yunnan Province, China, are reported. One species, A. ovaliclavus sp. nov., is described as new to science, and one species, A. solidus Hayat is reported as new to China. A key to all described species from China based on females is given. All the type materials are deposited in the insect collections of Northeast Forestry University, China.
基金supported by the National Natural Science Foundation of China(No.31470652)
文摘Platystethynium glabrum Jin et Li sp. nov. is described from China, and the genus is new to Chinese insect fauna. Diagnostic characters for the new species are given in comparison with the apparently closely related P. onomarchicidum. Two other mymarid species are also newly recognized from China： Mymar africanum Annecke and Anagroidea marina Triapitsyn et Berezovskiy.
