2023 年 49 巻 4 号 p. 155-159
Based on the material obtained in Kôshû City, Yamanashi Prefecture, Honshu, observations on the oviposition and results of the rearing experiments of Pamphilius benesi Shinohara, 1985, are presented, the life history of this sawfly is outlined, and the immature stages and the larval leaf-rolls are briefly described and illustrated.