Inouye, M., K. Kosugi, C. Koizumi, K. Ono, T. Uozumi, and K. Endo. 1930. Illustrated handbook of bark beetles, other wood-borers, and wood-rotting fungi found in the forests of the northern parts of Japan [In Japanese]. Department of Agriculture and Forestry, Forest Experiment Station, Sapporo Branch. 215 p.