Redescription of Cylindralcides takahashii (Kôno) (Coleoptera, Curculionidae, Molytinae, Mecysolobini) damaged on the Thunberg’s bay-tree

IF 1.5 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology Pub Date : 2025-12-01 Epub Date: 2025-10-17 DOI:10.1016/j.aspen.2025.102492

Dilshara D. Wijesinghe , Sangwook Park , Dong-Soon Kim , Ki-Jeong Hong

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Abstract

Fifteen adult and larval specimens of Cylindralcides (s. str.) takahashii (Kôno, 1930), a member of the tribe Mecysolobini (Curculionidae: Molytinae), were collected on new shoots of Thunberg’s bay-tree, Machilus thunbergii Siebold and Zucc. from Jeju Island of Korea. This represents the first record of the genus Cylindralcides Heller, 1918 in Korea and the first documented record of M. thunbergii as its host plant. The original description of C. takahashii was brief and lacked detailed diagnostic features, leading to misidentification. This study provides a redescription with diagnostic features, detailed illustrations of the adult and larva, and ecological observations, aiming to clarify the taxonomic status of the species. Additionally, the 682 bp of COI DNA barcode data support the assessment of molecular relationships within the tribe Mecysolobini.

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高桥圆柱孢菌（Kôno）（鞘翅目，曲霉科，Molytinae, Mecysolobini）在桐树上的危害再认识

本文在桐叶月桂树Machilus thunbergii Siebold和Zucc的新枝上，采集了桐叶月桂树（Mecysolobini科：Molytinae）科成员圆柱孢菌（s.str .） takahashi (Kôno, 1930) 15个成虫和幼虫标本。来自韩国济州岛。这是韩国在1918年首次记录到的圆柱孢属植物，也是首次记录到的寄主植物为刺贝属植物。最初对C. takahashi的描述很简短，缺乏详细的诊断特征，导致误认。本研究对该物种进行了诊断特征的重新描述，详细描述了成虫和幼虫，并进行了生态观察，旨在阐明该物种的分类地位。此外，682 bp的COI DNA条形码数据支持了Mecysolobini部落分子关系的评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Asia-pacific Entomology Agricultural and Biological Sciences-Insect Science

CiteScore

2.70

自引率

6.70%

发文量

152

审稿时长

69 days

期刊介绍： The journal publishes original research papers, review articles and short communications in the basic and applied area concerning insects, mites or other arthropods and nematodes of economic importance in agriculture, forestry, industry, human and animal health, and natural resource and environment management, and is the official journal of the Korean Society of Applied Entomology and the Taiwan Entomological Society.