Taxonomy, Distribution and Life History of Sanguisorba-feeding Sawfly, Arge suspicax (Hymenoptera, Argidae)

摘要

Based on the examination of the type material, the synonymy of Arge masudai TAKEUCHI, 1932, with Arge suspicax KONOW, 1908, is confirmed. The adult, larva, and cocoon of A. suspicax are described. The collection records of this species in Japan are mapped on the basis of the material examined. The record of this species from Shikoku is doubtful. Arge suspicax probably has four generations a year in the lowland of central Honshu.