R. Zweifel April 12, 1952 62 Diocleotomus smeatua Wedell Creek, Santa Cruz Co., Calif. 1953 R. Zweifel A larva about 3" long was seen to swim to the bottom of a 4" deep pool in a small, (3' wide) rapid hillside stream, water temp. 12°C. It was captured. This is called Bessie Creek, according to a sign where it crosses the road. The surrounding vegetation is typical redwood forest. Prominent plants along the stream are sword fern, marten fern, Oxalis and thimble-berry. Several other larvae were seen in other pools in this and in another stream.