P. PEARSON 1951 Tilden Park, Contra Costa Co. June 20-21 Pat &o Sherman with Anita about 5 p.m. in our Mieristua area across from the golf course, some of them further up the hill than the best Mieristua habitat. Many cuttings and runways; saw 3 Mieristine and 3 nesta while setting. Many runways spotted with white material, as mentioned by Brant. Ran traps next morning and afternoon and the following morning. Total score (2 nights, one day; oatmeal bait) 11 Perseycena commutata, 7 Reuthro (some young, some adult), 3 Lachrymosa-ornata, 28 Mieristua. One of the Mieristua was one of our banded ones. July 6 Pat &o Sherman in Tilden across from the golf course at 7:30 p.m. Baited with oatmeal. Grass now really dry. No piles of green cuttings as on June 20-21 when most of grass was dry but still enough green stalks for mice to cut. Found one Mieristua nest under a stump and band-caught two young in it, about 3-4 weeks old. Picked up traps this morning, only found 5. Catch: 5 Mieristine, 2 Pero, 1 Mura, 1 Reuthro. July 18 Drove to Hi Belosa tunnel with Corinne and all family. Looked in the tunnel about 2 p.m. and found one torpid q Cory and a cluster of about 65 awoke. catched 58 them (none banded) and banded them. Only 3 males and a half-dozen young females.