北海道の一小学校における家屋侵入性カメムシの生態と防除 : 1. 襲来するカメムシの種構成と季節消長

抄録

In Hokkaido, species composition and seasonal fluctuation of house-invading activity of stink bugs were studied during 1991 and 1992 seasons in an elementary school into which stink bugs have entered for hibernation in large numbers every year. Among 41,393 individuals belonging to 14 species collected, Menida scotti was predominant occupying more than 80% of the total collected specimens followed by Urochela quadrinotata and Lygaeus equestris. They are a serious nuisance in this elementary school. Their house-invading activities began in September and terminated in November. L. equestris was the earliest appearance species and most abundant in September. M. scotti was collected in and around the school building from late September to mid-November. The highest flight activity of this species was observed on several days in mid-October during which the weather was fine or cloudy and the maximum temperature of each day was approximately 15℃. Urochela quadrinotata was the latest appearance species with peak activity in late October. The slit trap used for collecting Halyomorpha mista, an important nuisance stink bug in Honshu, was not applicable for the species abundant here.