without Page 1. Peromyscus Oct. 1 - 1932. Camp Tenderoy - 20 miles S.E. Pocatello, Banner Co., Idaho. 6300 ft. Eight individuals were taken in mouse traps set over fallen logs in thin fir timber. One specimen # 693, was saved. On one of the tails, not preserved as a specimen, a large bot fly larva was found. The larvae was one half inch in length, and was imbedded in the skin on the posterior margin of the left thigh. The larvae was examined, but not preserved in alcohol, so was finally lost.