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Eucryptorrhynchus chinensis(Oliver)
Author(s): 
Pages: 1309
Year: Issue:  5
Journal: Chinese Bulletin of Entomology

Keyword:  沟眶象象虫科CurculionidaeColeoptera千头椿成虫体中隆折枝基部;
Abstract: <正>沟眶象为鞘翅目Coleoptera象虫科Curculionidae昆虫。分布在北京、天津、山东、河北、河南、江苏、陕西、辽宁、甘肃、四川等地,危害臭椿、千头椿等。成虫体长18.5 mm,略发光,前胸、鞘翅基部的大部分及鞘翅端部1/3处密被乳白色和赭色鳞片,额略窄于喙基部,喙的中隆线两侧各有两个明显的沟。成虫以嫩梢、叶片、叶柄为食,造成树木折枝、伤叶、皮层损坏;幼虫咬食皮层,随
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