Insect galls found on Mikurajima and Aogashima, the Izu Islands, Tokyo, Japan

  • TOKUDA Makoto
    Center for Research and Advancement in Higher Education, Kyushu University:(Present office)Laboratory of System Ecology, Faculty of Agriculture, Saga University
  • MATSUO Kazunori
    Entomological Laboratory, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
  • YUKAWA Junichi
    Entomological Laboratory, Faculty of Agriculture, Kyushu University

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Other Title
  • 伊豆諸島の御蔵島と青ヶ島で発見された虫えい
  • イズ ショトウ ノ ミクラジマ ト セイガシマ デ ハッケン サレタ チュウエイ

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Abstract

Cecidomyiid galls were surveyed in 2010 and 2011 for the first time on Mikurajima and Aogashima, the Izu Islands, Tokyo, Japan. We found 13 and three sorts of the galls on Mikurajima and Aogashima, respectively. Among them, the jar-shaped axillary bud gall induced by Rhopalomyia sp. was newly discovered on Chrysanthemum pacificum (Asteraceae). The stem gall induced by Bruggmanniella sp. on Actinodaphne acuminata (Lauraceae) was newly recorded from Tokyo. The following five sorts were new to the Izu Islands: the blister-shaped leaf gall induced by an unidentified cecidomyiid on Machilus thunbergii (Lauraceae), the axillary bud gall induced by Asteralobia soyogo onIlex integra (Aquifoliaceae), the ovate leaf gall induced by Oxycephalomyia styraci on Styrax japonica (Styracaceae), the bud gall induced by Asphondylia baca on Weigela coraeensis var. fragrans (Caprifoliaceae), and the small ellipsoidal leaf gall induced by Rhopalomyia chrysanthemum on C. pacificum. In addition, the petiole gall induced by Paratephritis fukaii (Diptera: Tephritidae) on Farfugium hiberniflorum (Asteraceae) was newly recorded from the Izu Islands, and the leaf gall induced by Trioza cinnamomi (Hemiptera: Psylloidea) on Cinnamomum tenuifolium (Lauraceae) and the leaf gall induced by Liothrips kuwanai (Thysanoptera: Phlaeothripidae) on Piper kadsura (Piperaceae) were new to Mikurajima and Aogashima.

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