A. Shinohara, Y. Kameda, S.-I. Ibuki, T. Kiyoshi, T. Kakuda, and H. Kojima, “Pamphilius ishikawai feeds on Astilbe: the first record of Pamphiliidae (Hymenoptera) associated with Saxifragaceae”, Zootaxa, vol. 4098, no. 1, pp. 167–178, Apr. 2016.