[435] DIPTERA 49 



Saldovia, Alaska, July 21: Thirteen specimens. The type locality 

 of this species is in California, and the species has also been recorded 

 from Colorado. 



Sericomyia chalcopyga Loew. 



Sericomyia ckalcopyga LOEW, Berliner Ent. Zeitsch., p. 12, 1863. WILLIS- 

 TON, Synopsis N. Am. Syrphidae, p. 156, 1886. 



Sitka, June 16; Fox Point, Alaska, July 28: Eight specimens. 

 Originally described from Sitka; it has been reported from Washing- 

 ton and Oregon. The U. S. National Museum also contains a speci- 

 men collected by Mrs. A. T. Slosson, at Franconia, New Hampshire. 



Eristalis meigenii Wiedemann. 



Ausser. Zweif. Insekten, n, p. 177, 1830. 

 Eristalis brousii WILLISTON, Proc. Am. Phil. Soc., p. 323, 1882. Synopsis 

 N. Am. Syrphidae, p. 165, 1886. 



Juneau, Alaska : Two specimens, collected July 25. This species 

 was originally described from Uruguay, South America ; it has also 

 been reported as occurring from Alaska and Canada to Colorado and 

 Pennsylvania. The synonymy is on the authority of Dr. Williston. 



Eristalis occidentals Williston. 



Eristalis occidentals WILLISTON, Proc. Am. Phil. Soc., p. 322, 1882. Synop- 

 sis N. Am. Syrphidae, p. 167, 1886. 



Metlakahtla, June 4 ; Sitka, June 16 ; Virgin Bay, June 26 ; Kadiak, 

 July 20 ; Juneau, July 25 ; Fox Point, Alaska, July 28 : Thirty-one 

 specimens. This species was originally described from Washington, 

 and has already been reported as occurring in Alaska. 



Eristalis flavipes Walker. 



Eristalis flavipes WALKER, List Dipt. Ins. Brit. Museum, in, p. 633, 1849. 

 WILLISTON, Synopsis N. Am. Syrphidae, p. 168, 1886. 



Fox Point, Alaska : A single specimen, captured July 28. Origi- 

 nally described from Albany River, British America ; it has also been 

 reported as occurring from Washington and Canada to Colorado and 

 Rhode Island. 



Eristalis compactus Walker. 



Eristalis compactus WALKER, List Dipt. Ins. Brit. Museum, in, p. 619, 1849. 

 WILLISTON, Synopsis N. Am. Syrphidae, p. 169, 1886. 



Kadiak, Alaska: Two specimens, taken July 19 and 20. This 

 species was originally described from Albany River, British America ; 

 it has also been recorded from Canada, New Hampshire, and Connec- 

 ticut. 



