New locality records of Cisanthribus nakanei Morimoto (Coleoptera: Anthribidae: Choraginae), with biological notes

ツブヒゲナガゾウムシCisanthribus nakanei Morimoto, 1986 (コウチュウ目: ヒゲナガゾウムシ科: ノミヒゲナガゾウムシ亜科) を中之島, 伊平屋島, 座間味島, 粟国島, 西表島, 与那国島から初めて記録した. また, 本種を沖縄島から追加記録した．さらに, これまで落葉層のみに生息すると考えられてきた本種の, 枯れ木のビーティングまたは立ち枯れのスプレーイングによる採集例や, ビロウの枯れた葉柄上での観察例を併せて報告した.
Cisanthribus nakanei Morimoto, 1986 is newly recorded from Nakanoshima Island, Iheya-jima Island, Zamami-jima Island, Aguni-jima Island, Iriomote-jima Island, and Yonaguni-jima Island, and additionally recorded from Okinawa-jima Island in the Ryukyu Islands. Although this species was thought to inhabit in the litter layer, it was collected by beating dead trunks or by spraying a standing dead tree on Iriomote-jima Island, and also obtained and observed mating on dead leafstalks hanging from a Livistona chinensis tree on Yonaguni-jima Island.