西表島の住宅で偶然見つかった「見慣れない虫」を 標本に基づいて記録 ―シロアリモドキ類の標本記録から考える、検証可能な生物多様性情報の意義―

2026-07-15 琉球大学

図1. 西表島のタイワンコケシタムシ

雄の腹部末端部に見られる、種の識別に用いられる特徴（矢印）と、2026年3月に住宅の網戸で発見された際の様子（和智仲是撮影）

＜関連情報＞

• https://www.u-ryukyu.ac.jp/news/80112/
• https://checklist.pensoft.net/article/195410/

西表島産のOligotoma humbertiana (Saussure, 1896) (Embioptera, Oligotomidae)の標本に基づく記録、および本種の分布と出現データに関する注記 Specimen-based record of Oligotoma humbertiana (Saussure, 1896) (Embioptera, Oligotomidae) from Iriomote Island, Japan, with notes on the species’ distribution and occurrence data

Nakatada Wachi

Check List  Published: 09 Jul 2026

DOI:https://doi.org/10.15560/22.4.610

Abstract

Webspinners (Embioptera) are cosmopolitan but have limited dispersal abilities, and their occurrence data remain poorly documented in Japan. Oligotoma humbertiana (Saussure, 1896), a widely distributed tropical species, has previously been recorded in Japan only from Kyushu and Minamidaito Island, and its occurrence in the Yaeyama Islands has remained uncertain. Here, I report a verifiable specimen-based record from Iriomote Island, based on two winged males collected from a residential building. This finding suggests potential human-mediated dispersal, although local establishment cannot be excluded, and highlights the value of specimen-based data.