R.B. Hamilton 1967 Journal En Route to San Felipe, Dept. of Cajamarca, Peru 16 km N, 25 km E of Olmos, Dept. Lambayeque, Peru, elevation 4300 ft. August 17 on the hill. This topography greatly surprised me as I thought the moisture was coming from the east but the vegetation indicated it is coming from the west, the area we are now in being in the rain shadow. We descended the mountain. By the time we reached the bottom it was quite dark. At elevation 4000 ft. we camped in area of exten- sive mesquite and pepper trees in dry river bottom and saw some Zapote sp. Here Fred, Carl and I set traps. With Fred's help I also set up a net. Ray was sick, and I wasn't feeling too well either. 2 km S, 16 km W of San Felipe, Dept. of Cajamaraca, Peru, elevation 4000 ft. This area was especially notable for the great number of wasps flying around. We had to watch our step every second in order to avoid being stung. In setting up camp we tried to get away from cliffs on north side of road where these wasps seemed to be nesting. After supper, we went owl hunting. We heard one screech owl but could not find it. Carl found a cave in which vampire bats were roosting. I slept out under the net having retired about 23:00.