Nerthus taivanicus (Bergroth, 1914) is recorded from Japan for the first time as the sixth species of Japanese Heterogastridae. This species is estimated to be an exotic species in Japan because its occurrence is restricted to urbanized environments, including the university campus in the Tokyo metropolis.
オオクロマダラナガカメムシNerthus taivanicus (Bergroth, 1914)を日本から初記録した。本種は東京都内の都市化した地点からのみ得られており、外来種と考えられる。