126 SYRFHIDAE. 



Sphaerophoria contir/ua Macquart, Dipt. Exot. 2<> Snppl. 62< 4. 

 strignta Staeger, Groenl. Antl. 362, 31 ; Holmgren, Ins. Nordgroenl. 



100 (,,an varietas S. pictae" ? Holmgren'. -- Greenland. 

 picta Macquart; Zetterstedt, Dipt. Scand. II, 772, 7. -- Europe and 



Greenland (Holmgren, Ins. Nordgroeul. 100). 



infumata Thomson, Eugenies Resa, 501 (Syrplms). California. 

 *micrura 0. Sacken, Western Dipt., 330, -- San Francisco. 

 *SUlphuripes Thomson, Eugenies Resa, 501 (Syrphus) ; 0. Sacken, 

 Western Dipt., 330. - - California. 



Observation. Mr. Walker mentions the European S. hierogh/phica, meniiiastri 

 and scripta as occuring in Nova Scotia (Walker, List, etc., Ill, p. 593J 4 



Allogrrapta. 



O. Sacken, Bulletin Buff. Soc. N. H.' Ill, 49; 1876. ("). 



?emarginata Say, J. Acad. Phil. Ill, 91, 5 (Scaeva); Compl. Wr. II, 78; 

 Wiedemann, Auss. Zw. II, 119, 4 (Syrphus). - - Florida (Say/, 

 Virginia} Delaware (Ent. Soc. Phil). 



*obliqua Say, J. Acad. Phil. Ill, 89, 2 (Scaeva); Compl. Wr. II, 78; 



Amer. Ent. I; Tab. XI; Compl. Wr. I, 23; Wiedemann, Auss. 



Zw. II, 138, 39 (Syrphus). North America; also in South 



America (Schiner, Dipt. Novara, etc., 353). 



Syrphus securiferus Macquart, Dipt. Exot. II, 2, 100, 22 and 1" 



Suppl. 139 ($) (!). 



Sphaerophoria Baccliides Walker, List, etc III, 594 !). 

 Syrphus signatns v. d. Wulp, Tijdschr. v. Eut. 2e Ser. II, 144- 



Tab. IV, f. 12. 



Syrplms dimensus Walker, Dipt. Saund., 235 !). 

 *fracta 0. Sacken, Western Dipt., 331. -- Southern California. 



Xanthogrramina. 



Schiner, Wien. Ent. Monatschr. IV, 215; 1860. 



*felix 0. Sacken, Bulletin Buff. Soc. N. H. Ill, 67 (reproduced in the 

 note ( 2IC ). - - West Point, N. Y. ; Pennsylvania ; Illinois. 



Boros. 



Meigen, Illiger's Magaz. II; 1803. 



*aeqnalis Loew, Centur. IV, 84. - - Pennsylvania. 



*flavipes Loew, Centur. IV, 83. -- Pennsylvania (Lw.1; New York. 



Observation. For Doros Balyras Walker, see leiwiostoma. 



Ascia. 



Meigen, System. Beschr. Ill, 193; 1822. 

 *g-lobosa Walker, List, etc. Ill, 546. -- Trenton Falls, N. Y. 



Sphegina. 



Meigen, System. Beschr. Ill, 193; 1S22. 

 *infuscata Loew, Centur. Ill, 23. - - Sitka. 



