Abstract
Three of four men felt severe itchiness on their hips, groin and knees when they stayed in the Jumonji hut (2,030m) in Saitama Prefecture on May 23,1999. Two days after this incident, a total of six fleas were captured from the pants of the three victims. Two of the 6 fleas were brought to the laboratory and were identified as Ceratophyllus garei. Meanwhile, 4 males and 1 female C. garei were collected from the nest of a Japanese wren, Troglodytes troglodytes, on April 4,1977 on Mt. Buko of Saitama Prefecture. These data complement the collection records of C. garei in Japan.
