36 SMITHSONIAN INSTITUTION 



land, I visited the western slope of Mount Hood at 1,500 feet, in heavy 

 fir forest on Sandy River. 



The next collecting was done at the beach of the Pacific near Smith 

 River, close to the Oregon Line, just at the edge of the famous red- 

 wood country. Two years before, I had found here the celebrated 

 rare fly with mandibles, or at least an imitation of mandibles. My 

 stock of these remarkable flies had become depleted through dona- 

 tions made by the Museum to other institutions, and I sought a new 

 supply. In the course of a few days I was able to get about 40 speci- 

 mens, and to discover that the fly occurs at only one small place on 

 the California beach, as far as known. The narrowness of these 

 limits was not suspected on my former visit. 



Insects of the Pacific seacoast usually extend for hundreds of 

 miles along the shore, several being known from Alaska to or nearly 

 to San Francisco. Observations on the flies of the coast are none too 

 plentiful as yet, and I was glad to be able to compare the flies at Smith 

 River with species I had obtained along the coast farther north up 

 to Seward, Alaska, in earlier years, as well as with collections made 

 southward as far as Long Beach. This year it was found feasible to 

 visit San Diego also for several days, and to collect at Laguna on the 

 way down. This gave us a better representation from the California 

 seashore than we had before. A delightful 80-mile trip into the in- 

 terior brought me to Warner's Hot Springs. The totally different in- 

 terior climate naturally meant different flies, so the day's collecting 

 was one of the best of the whole season. 



While in Los Angeles I ascended Mount Lowe to the summit but 

 was disappointed in the results, it being too late and too dry up there 

 for many flies. 



The trip covered a more diversified field than any previous single 

 summer in my experience. As usual, it was not possible to be at each 

 place at the best time of year for collecting ; sometimes I was too 

 early and sometimes too late. But on the whole a valuable collection 

 was obtained, the study of which will not be completed for some time. 



