Hooper 1939 July 16 Guernerville, Mt. Sonoma to Calif. Beside these two trees numerous bugs, Umbellularia Californica, a species of Arethostaphalus, Madron, and Poison Oaks were noted. Vegetation was very dense on the hills on either side of the river. About 3/4 miles S W of Guernerville or 1/4 mi NE of Guernwood park? I set out 25 Museum special traps. The traps were set near the river in a part of the river bed now nearly dry and with only stagnant pools and muddy areas which were overgrown with cattails and young willows and another marsh plant which I did not recognize. The exact location of my trap line can be