144 Journal New York Entomological Society, [^oi. xxiii. 



Eristalis nemorum (Linne). 



In 1883 Van der Wulp (Tijdschr. v. Ent., XXV, p. 128) doubt- 

 fully recorded this species from Quebec, Canada. Ever since it has 

 existed in catalogs of American diptera accompanied by a question 

 mark. It now becomes my pleasant duty to remove this distasteful 

 sign and to list the species as a widely distributed North American 

 one, known positively from seven different localities, occurring both 

 in the United States and Canada and ranging practically from coast 

 to coast. 



The first specimen to come to my attention was a male taken 

 Aug. 31, 1904, at Vernon, B. C. (near Vancouver), by Mr. R. V. 

 Harvey. While on a collecting trip into British Columbia in the 

 summer of 1912 the writer took a male and a female specimen at 

 Kaslo on July 11, and one female at Revelstoke on July 14. Mr. J. 

 W. Cockle, of Kaslo, presented me with a male taken by him on May 

 7, 1910. 



In recent correspondence Mr. Chas. W. Johnson informs me that 

 there are in the Museum of the Boston Society of Natural History 

 four specimens taken as follows: Newport, Vt, July i, 1891 (A. P. 

 Morse), Montreal, Canada, Sept. i, 1905 (G. Beaulieu), Machias, 

 :Me., July 26, 1909, and St. Albans, Vt., June 21, 1912 (C. W. John- 

 son). 



In North America there are now known five species of the genus 

 Eristalis which occur also in Europe. These are : 



E. ccnea (Scopoli), widely distributed over both continents. 



E. arbustorum Fabricius, widely distributed over Europe, northern 

 Asia and into northern Africa, and here recorded for the first 

 time as a common species in northeastern North America. 



E. nemorum (Linne), common in Europe and wejl distributed, but 

 apparently not common, in Canada and the northern New Eng- 

 land states. 



E. crstraccus (Linne), described as E. ocstriforniis by Walker from a 

 single specimen taken in the Hudson's Bay Territory. It has re- 

 cently been shown in Austen (Ent. ]Monthly Mag., 2 ser., vol. 

 XXII, p. 6^, Mch., 1911) that Walker's ccstriformis is identical 

 with ccstraceus. 

 Apparently only the single specimen from Hudson's Bay, which 



is still in the British Museum, has ever been taken in America. 



