Abstract
A giant gall was collected on the living trunk of Styrax japonica, at Odawara of Kanagawa Prefecture, Honshu, Japan, on 13 January 2009. It was determined as the gall produced by the primary-host generation of the aphid, Tuberaphis takenouchii. As a result of continuous observation of secondary-host candicate, Scurrula yadoriki at adjacent area, we detected the leafgalls of S. yadoriki at the point 9.5km apart from the above mentioned locality in Odawara, on 31 July. 2009. It was identified by Dr. S. Aoki as the gall produced by the secondary-host generation of the species. This is the first record of the secondary-host generation of T. takenouchii in Japan.
