194 Proceedings of the Biological Society of Washington. 



In all cases the District of Columbia is the sole locality given. 

 It has been shown that the locality for Chrysotoxum ventricosum is 

 the State, not the City of Washington. Of the other species 

 Ocyptamus longiventris has been put in synonymy. 

 Osburn, R. C. 



Studies on Syrphidae I — Syrphus arcuatus Fallen and a related new 

 species. Journ. N. Y. Ent. Soc. 18, No. 1, March, 1910, pp. 53- 

 57, PI. 1. 

 Records S. arcuatus from the District of Columbia. 

 Studies in Syrphidae IV. Species of Eristalis new to America, with 

 notes on others. Journ. N. Y. Ent. Soc. 23, No. 2, June, 1915, pp. 

 139-145. 



Shows that E. arbustorum, not E. Meigenii as formerly supposed, 

 is the common form about the District of Columbia, as well as in 

 many other eastern localities. 

 Osten Sacken, C. R. 



A list of the North American Syrphidae. Bull. Buffalo Soc. Nat. 

 Hist. 3, Art. V, pp. 38-71, November, 1875. 

 Records 9 species from the District of Columbia. 

 Shannon, R. C. 



Captures of the Syrphid fly, Merapioidus villosus Bigot. Proc. Ent. 

 Soc. Wash. 17, No. 3, September, 1915, pp. 147-148. 

 At Dead Run, Va., Plummers Id., Md. , and Falls Church, Va. 

 An eastern Chilosia with hairy eyes (Diptera, Syrphidae). Proc. 

 Ent. Soc. Wash. 17, No. 3. September, 1915, p. 168. 



Chilosia primoverig n. sp. Type locality Plummers Id., Md., 

 recorded also from Maryland and Virginia, near Plummers Id., 

 and from Cabin John and Great Falls, Md. 

 A new eastern Brachyopa. Ins. Insc. Mens. 3, No8. 11-12, Novem- 

 ber-December, 1915, pp. 144-145, December 31, 1915. 



Brachyopa flavescena n. sp., described from Dead Run, Va., May 

 23 and June 9, 1915. 

 Townsend, C. H. Tyler. 



Contributions to the Dipterology of North America — I. Syrphidae. 

 Trans. Am. Ent. Soc. 22, pp. 33-55. March, 1895. 



Records 18 species from the vicinity of the District of Columbia. 

 One described as new, Microdon bombiformis, Dixie Landing, Va., 

 June 1, is now considered the same as M. megalogaster Snow. 

 Williston, S. W. 



Eine merkwurdige neue Syrphiden — Gattung. Wiener Ent. Zeitung 

 3, 1884, pp. 185-186, fig. 



Euceratomyia pergandei gen. et sp. nov. , District of Columbia, 



by Theo. Pergande, November 16, 1879. Now placed in genus 



Pelecocera. 



Synopsis of the North American Syrphidae. Bui. No. 31, U. S. 



National Museum, 1886, 335 pp. 12 pis. 



Fifteen species recorded from District of Columbia and vicinity. 



