摘要
Diuncus liangae Lin sp.nov.is described based on specimens intercepted from an imported vine originating from Indonesia.This new species can be distinguished by elytral summit transversely impressed with a saddle-like depression;declivital base armed by one pair of denticles on interstriae 2;posterolateral margin forming a circumdeclivital carina extending laterally to interstriae 3,and carina on interstriae 3 and 4 being discontinuous.Morphological descriptions,photographs and illustrations are provided.
记述双棘小蠹属Diuncus一新种:梁氏双棘小蠹Diuncus liangae Lin sp.nov.。新种标本从印度尼西亚进口的藤中截获所得,该新种的主要鉴别特征是其鞘翅中部具1横向鞍状凹陷,鞘翅斜面基部第2沟间部具1对齿,斜面斜截并具环脊,脊延伸至第3沟间部,第3沟间部和第4沟间部于斜面基部成不连续的短脊。文中提供了成虫形态描述和形态特征图。
基金
supported by the Scientific Research Project of General Administration of Customs(2024HK046,2023HK042)
Ministry of Science and Technology's Basic Resource SurveyProject(2023FY100402).
