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危害云锦杜鹃的简脉茎蜂属一新种(膜翅目:茎蜂科)及系统学意义 被引量:1
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作者 牛耕耘 李东宾 +2 位作者 谭贝贝 徐婧 魏美才 《林业科学》 EI CAS CSCD 北大核心 2023年第3期145-151,共7页
【目的】研究宁波地区发现的一种严重危害云锦杜鹃的茎蜂类害虫,明确其种类和分类地位,并探讨该类茎蜂多样化的可能机制。【方法】采用经典比较形态学研究法,确定种类名称并判断本种害虫的所属类群。采用第二代测序技术,完成全基因组测... 【目的】研究宁波地区发现的一种严重危害云锦杜鹃的茎蜂类害虫,明确其种类和分类地位,并探讨该类茎蜂多样化的可能机制。【方法】采用经典比较形态学研究法,确定种类名称并判断本种害虫的所属类群。采用第二代测序技术,完成全基因组测序;并对其线粒体基因组进行组装、序列特征分析、近缘种遗传距离统计并构建基于蛋白质编码基因的系统发育关系。【结果】确定蛀茎危害云锦杜鹃的茎蜂害虫是一个新物种:杜鹃简脉茎蜂Janus dujuan Wei, sp. nov.。杜鹃简脉茎蜂与西藏东部分布的黄腹简脉茎蜂J. xanthus Naito&Smith, 1998近似,但体色和构造与该种均不同。杜鹃简脉茎蜂的线粒体全基因组序列全长17 725 bp,包含全部37个基因。基于线粒体基因组数据,重建了简脉茎蜂属5个物种的分子系统发育树,结果表明杜鹃简脉茎蜂与斑翅简脉茎蜂种团的缘斑简脉茎蜂组成单系群,杜鹃简脉茎蜂与已知线粒体基因组数据的简脉茎蜂属种类差距很大,cox1序列的K2P距离为14.7%~21.4%。讨论了茎蜂科茎蜂属和简脉茎蜂属的生物地理特征,推测简脉茎蜂属在东亚南部的多样化可能与本地区杜鹃花科植物的多样化密切相关,茎蜂属的多样化可能与地中海区域以小麦属为主的禾本科植物的高度多样化相关。基于相关文献数据和本文研究,还比较讨论了膜翅目基部不同类群的cox1基因序列的属、种间差异。【结论】蛀茎危害云锦杜鹃的茎蜂害虫新物种为杜鹃简脉茎蜂Janus dujuan Wei, sp. nov.,其形态与黄腹简脉茎蜂J. xanthus Naito&Smith, 1998近似。简脉茎蜂属内条形码的遗传距离相对较大,提示该属分类学仍需进一步研究。笔者推测其在东亚南部的多样化可能与本地区杜鹃花科植物的多样化密切相关。 展开更多
关键词 等节茎蜂亚科 线粒体基因组 cox1 中国 杜鹃花
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Two new species of Janus Stephens(Hymenoptera:Cephidae) from China with a key to Chinese species 被引量:2
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作者 Lin LIU Biao CHU Meicai WEI 《Entomotaxonomia》 CSCD 2017年第3期238-246,共9页
The diagnosis of Janus Stephens 1829 and a key to the Chinese species of the genus is provided. Janus rnegarnaculatus Liu & Wei sp. nov. and J. rufus Liu & Wei sp. nov. are described from China. Janus megamaculatus ... The diagnosis of Janus Stephens 1829 and a key to the Chinese species of the genus is provided. Janus rnegarnaculatus Liu & Wei sp. nov. and J. rufus Liu & Wei sp. nov. are described from China. Janus megamaculatus sp. nov. differs from its known congeners by the body very large, head and thorax yellow brown with few black macula, the abdomen yellow brown with transverse black bands, the mesoscutal middle lobe with a deep middle furrow and the apical sheath as long as the basal sheath. Janus rufus sp. nov. is similar to Janus xanthus Naito & Smith, 1998 in structure but differs from the latter by the head and thorax almost entirely yellow brown, the antenna brown and about 2 times as long as head and thorax together, the hind femur yellow brown, the cell Rs in hindwing closed and cereus 0.14 times as long as the apical sheath. 展开更多
关键词 SYMPHYTA Hartigiinae TAXONOMY
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Three new species of Janus Stephens(Hymenoptera:Cephidae)with a key to Zhejiang species,China 被引量:1
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作者 Beibei TAN Lin LIU Meicai WEI 《Entomotaxonomia》 CSCD 2022年第1期72-79,共8页
Three new species of Janus Stephens are described from Zhejiang Province,China:Janus dianban Wei sp.nov.,J.infuscimarginatus Wei sp.nov.and J.xanthoscutella Wei sp.nov.A key to four Janus species from Zhejiang Provinc... Three new species of Janus Stephens are described from Zhejiang Province,China:Janus dianban Wei sp.nov.,J.infuscimarginatus Wei sp.nov.and J.xanthoscutella Wei sp.nov.A key to four Janus species from Zhejiang Province is provided.Type materials are deposited in the Asian Sawfly Museum,Nanchang,China. 展开更多
关键词 Cephomorpha Hartigiinae taxonomy stem sawflies KEY
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On the genus Tibetajanus Wei(Hymenoptera:Cephidae)with description of a new species
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作者 Mei NIE Lin LIU +1 位作者 Gengyun NIU Meicai WEI 《Entomotaxonomia》 CSCD 2021年第2期151-156,共6页
The genus Tibetajanus Wei,1996 is reviewed based on holotypes and new material.The genus is unique among the genera of Cephidae by the supraclypeal area with a sharp middle keel,the forth labial palpus short and clear... The genus Tibetajanus Wei,1996 is reviewed based on holotypes and new material.The genus is unique among the genera of Cephidae by the supraclypeal area with a sharp middle keel,the forth labial palpus short and clearly broader than the forth maxillary palpus,left mandible short and strongly bent at middle,most of the flagellomeres in male serrate ventrally,the middle serrulae of female lancet with fine teeth.A new species,T.circularis sp.nov.,is described from the southern mountainous regions of Jiangxi and Hunan Provinces,China.A key to known species of this genus is provided. 展开更多
关键词 stem boring sawflies Hartigiinae taxonomy key
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