2 THE CANADIAN ENTOMOLOGIST. 



2. Microdon viridis, Townsend. 



Ainswoith, July ii, 1903, by R. P. Carrie, and Vancouver, June 11, 

 1904, by R. V. Harvey. 



3. Microdon mar77ioratus, Bigot. 



A single specimen taken at Vernon, Aug. 14, 1904, by R. V. 

 Harvey. 



4. Chrysotoxtun ypsilo7i, Williston. 



Kaslo, June 5, 1903, by H. G. Dyar. (Identification by Coquillett.) 



5. Pipiza pisticoides, Williston. 



Taken at Kaslo by Mr. Cfirrie on various occasions ranging from 

 June 12 to July 20, and by Mr. Cockle, June 30, 1906. 



6. Pipiza nigripilosa, Williston. 



A single male specimen taken at Vancouver, June 21, 1904, by 

 Harvey, differs from eastern specimens in having the eyes dark pilose 

 instead of light pilose, but otherwise the agreement is very close. 



7. Pipiza qtiadrimaailata, Panzer. 



Five specimens. taken at Vancouver, July 2, 1906, by R. V. Harvey 

 and R. S. Sherman. This European species has not been recorded from 

 North America until very recently. In " Psyche " for August, 1907, Mr. 

 C. W. Johnson notes its capture at North Mountain, Penn., and Mt. 

 Greylock, Mass. The species thus evidently furnishes another example of 

 circumpolar distribution to be added to the already long list among the 

 .Syrphidse. It is easily distinguished from other American species of the 

 genus by the two interrupted yellow cross-bands on the abdomen, forming 

 the four spots which suggest the specific name. 



8. Chilosia chaiybesce?is, Williston, 



Grouse Mt., July i, 1904, one specimen by R. V. Harvey. 



9. Chilosia occidentalism Williston. 



Two specimens by R V. Harvey, one from the Hope Mts., July 24, 

 1906, the other at Vancouver, June 22, 1906, 



10. Chilosia hoodiatia, Bigot. 



One female specimen from Similkameen, July 20, 1906, by R. V. 

 Harvey, I place here, though it shows some differences. The yellow of 

 the knees (" geniculis tibiarumque basi, fulvis," Bigot) is almost wanting, 

 and the fourth abdominal segment is entirely shining. 



