WB Davis 1935. Head Big Lost River, 7895 ft, Custer Co, Idaho, July 11 fields. I did not try for them), about 10 mi. s of Bellevue I saw into thousands of "crickets" on the highway. I stopped and collected a quart jar full of them). They were everywhere. They congregate by the dozens under flat rocks and where in such numbers their buzz sounds much like that of a Crataeus. In fact I was deceived the first time I heard it. These are the same insects that are giving so much trouble in the Boise area. When I reached Bellevue valley I began to see dozens of O. Columbianus. Collected one sad. I just outside the city limits s of Ketchum. They prefer the moist irrigated areas. At Ketchum I took the Trail 746 road and drove 13 miles, reaching here about 3:00 p.m. The grade - 3 mi. long - is very steep and caused the car to bail considerably. I am camped at the summit on the east side of the road about 50 ft. from Summit Creek, the middle fork of Big Lost River. The dominant trees are Lodge Pole Pine with a few firs, along the