31 May Tijuca Canyon, 10 miles NNE of intersection of SB2 + W3 on the W3 Los Angeles Co. Arrived at Monte Cristo campground in the evening and set 30 traps along a dirt road leaving from the North end of the campground. One trap line was in shrub oak-chaparral habitat adjacent to the road & the other line was in a willow-dominated riparian zone following the creek. Trap success here was very low. We caught one N. lepida at a house in the riparian zone and one juvenile N. fascipes in the chaparral. We returned to Westlake in the late morning. In the afternoon we changed the oil in my truck, then went to set traps. We took the Rancho Road exit off 101 and went west. We turned LEFT (South) on Sundain road. At the end of this street is a dirt