PHOCKEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 

 Fourth Series 



Vol. XI, No. 15, pp. 197-344, 54 text figs. December 14, 1921 



XV. 



AN ANNOTATED LIST OF THE DIPTERA (FLIES) 

 OF OREGON 



BY 

 F. R. COLE 



Associate Curator in Dipterology, California Academy of Sciences 



AND 

 A. L. LOVETT 



Oregon Agricultural College 



INTRODUCTION. 



In the preparation of this list we have endeavored to 

 get a representative collection of diptera from the state of 

 Oregon, but we have had little or no opportunity to col- 

 lect in some of the faunal areas. Collectors in the state 

 will at least have something to work from and we hope to 

 see the list greatly increased in the near future. Cosmopoli- 

 tan species have been listed without giving any particular 

 data. Considering the great area of the state and the diversity 

 of ecological conditions, our list seems quite small and it is 

 intended only as a preliminary report. Aldrich's Catalogue 

 lists only 89 species of diptera from Oregon, but we must 

 add to this number about 40 species having a general dis- 

 tribution and at least six species mentioned as occurring all 

 along the Pacific coast. Of Aldrich's 89 species, we have 

 been unable to find 24; seven of these are species described 

 by Loew, five are Bigot's species, and six are species 

 described by Williston. One hundred and seventy-eight 

 species in this list have been described since the publication 



December 14, 1921 



