Ij^ 4inat(ian Eittotttolajjbt. Vol. XL. LONDON, JANUARY, 1908. No. i, BRITISH COLUMBIA SYRPHID.E, NEW SPECIES AND ADDI-TIONS TO THE LIST. BV RAYMOND C. OSBURN, COLUMBIA UNIVERSITY, NEW YORK. in a former paper (Can. Ent., Vol. XXXVI, Aug. -Sept., 1904) the writer recorded seventy-eight species in this family of Diptera for British Columbia, and suggested that a complete list would probably include twice that number. Undoubtedly that estimate was far too small, if the number of species which have been added in three years by a little sporadic collecting is any criterion. With the present additions the list is swelled to more than one hundred and twenty-five. With the exception of ten species of my own collecting not recorded in my former paper on account of uncertainty of determination, and nine species added by Messrs. Currie and Dyar, of the U. S. National Museum; the material for this additional list has been taken by local entomologists. Especial reference must be made to the excellent work of Prof. R. V. Harvev, of Queen's School, Vancouver, to whose careful collecting twenty-two of the additions are due. The remainder were taken by Messrs J. W. Cockle, of Kaslo ; R. S. Sherman, of Vancouver, and A. W. Hanham. In 1906 Messrs. Harvey and Sherman made a tour through the Hope Mts. and along the Nicolum River, securing a fine lot of specimens. In 1903 Messrs. H. G. Dyar, R. P. Currie and A. N. Caudell, of the U. S. National Museum, collected in the Kootenay country, and incidentally took forty-one species of Syrphidae and added nine species to the B. C. list. Mr. D. W. Coquillett has identified this collection, and very kindly turned over the results to me for publication in the following list. The species resting entirely on his identification are so accredited in the list. My thanks are due to Mr. Coquillett for permission to study carefully the collection of Syrphidaa, containing many of the type specimens, in the National Museum. I. Micro don tristis, Loew. The form tristis taken at Kaslo, June 5, 1906, by R. P. Currie, and again by J. W. Cockle on June 5, 1906. The form. cotJmrnatus was recorded in our previous list.