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First Report of Pronotal Black Mark Difference of Cyrtotrachelus thompsoni Alonso-Zarazaga & Lyal, 1999 (Coleoptera: Curculionidae) between Taiwan and Matsu Islands, with Key to Species of the Palearctic Region

馬祖列島產臺灣大象鼻蟲與臺灣產族群型態差異記述(鞘翅目:象鼻蟲科)及古北區產大象鼻蟲屬物種檢索表

摘要


Cyrtotrachelus thompsoni Alonso-Zarazaga & Lyal, 1999 is a common species widely distributed in Asia, including China, Japan and Taiwan from East Asia; India and Pakistan from South Asia. In this study, we provided the first report of the pronotum phenotype difference of C. thompsoni between Matsu islands and Taiwan island. The photograph of habitus, illustration of male genitalia and key to Palearctic species of Cyrtotrachelus are also provided.

並列摘要


臺灣大象鼻蟲是亞洲地區常見的物種,廣泛分布於東亞的中國、日本、臺灣以及南亞的印度、巴基斯坦,本研究為提供本種馬祖族群和臺灣族群的前胸背板斑紋型態差異的首次記錄,同時提供標本照、雄性生殖器影像及古北區大象鼻蟲屬物種之檢索表。

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