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对2011年6月采自云南勐仑的73头异色跗虎天牛Perissus mutabilis Gahan,1894标本进行研究,发现该种73号标本在鞘翅斑纹、前足爪开式、前胸背板颜色及斑点、后足腿节长度存在不同程度的差异,研究认为上述特征不宜用作该种分类鉴定的特征。红胸跗虎天牛Perissus mutabilis vitabilis Pic,1923和黑胸跗虎天牛Perissus mutabilis obscuricolorPic,1937依据部分上述特征建立,且特征出现交叉,分布区域与指名亚种异色跗虎天牛P.mutabilis mutabilis Gahan,1894重叠,建议取消红胸跗虎天牛P.mutabilis vitabilis Pic,1923和黑胸跗虎天牛P.mutabilis obscuricolor Pic,19372个亚种。并对异色跗虎天牛P.mutabilis Gahan,1894进行重描述。  相似文献
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共记述了绿虎天牛属Chlorophorus Chevrolat中国1新纪录种,横纹绿虎天牛Chlorophorus copiosus Holzschuh;艳虎天牛属Rhaphuma Pascoe中国2新纪录种,回纹艳虎天牛Rhaphuma lanzhui Holzschuh和箭纹艳虎天牛Rhaphuma illicata Holzschuh;刺虎天牛属Demonax T homson中国3新纪录种,断纹刺虎天牛Demonax traudae Holzschuh,蔷薇刺虎天牛Demonax rosae Holzschuh和格氏刺虎天牛Demonax gertrudae Holzschuh。研究标本保存在西南大学昆虫标本馆。  相似文献
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Many species of beetles in the family Cerambycidae use volatile pheromones to facilitate the location of mates. Visual cues may also influence the location of mates, as the adults of many species of cerambycids are often brightly patterned and diurnal. Theory predicts that combining signals or cues of different modalities (e.g., chemical, visual) to transmit information will increase the likelihood of an organism responding to this information, compared to when the signal or cue is presented alone. Here, we test the hypothesis that attraction of adults of the cerambycid beetle Megacyllene caryae (Gahan) (Coleoptera: Cerambycidae, Clytini) to their pheromones will be increased when visual cues are present. Consistent with that hypothesis, the number of beetles caught by traps baited with pheromones was increased 3.4‐fold when a dead adult beetle of that species was attached to the trap, relative to those with just pheromone alone. Capture of M. caryae in our study was also influenced by the position of traps within forest stands, with traps at 100 m within stands catching 2.5× as many beetles as traps at the forest edge. These findings suggest that vision and visual cues play an important role in the location of mates by cerambycid beetles and warrant further research. Also, the inclusion of visual cues on traps may enhance the efficacy of trapping cerambycid beetles, such as the detection of species that are non‐native and potentially invasive, or when monitoring species that are native and of conservation concern.  相似文献
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A new species of Clytus Laicharting (Coleoptera: Cerambycidae) is described from Korea. Illustrations of diagnostic characteristics of the new species including male genitalia are provided with a key to Korean Clytus species.  相似文献
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