Occurrence of Stethorus pusillus （Coleoptera: Coccinellidae） and Stethorus japonicus from Hokkaido to Kyushu Districts in Japan

Abstract

We surveyed the occurrence of Stethorus pusillus（Herbst）and Stethorus japonicus H. Kamiya from Hokkaido to Kyushu districts in Japan. Stethorus pusillus, whose occurrence was recently recorded in Japan again, was abundant and widely distributed from Hokkaido to Kumamoto Prefectures. On the other hand, fewer S. japonicus individuals, which had been regarded as a major species within Hokkaido to Kyushu districts, were collected: they were found in only seven prefectures ranging from Shizuoka to Kumamoto Prefectures.