SYRPHICI. 51 



Amissas Walk. Georgia. Walker, List, etc. Ill, 589. 



Antiphates Walk. Jamaica. Walker, List, etc. Ill, 589. 



angulatus Harris. Cat. Ins. Mass. 



arcucinctus Walk. Huds. Bay. Walker, List, etc. Ill, 580. 



Bacchides Walk. Florida. Walker, List, etc. Ill, 594 (Sphaero- 



phoria) . 



Balyras Walk. New York. Walker, 1. c. Ill, 577 (Z)oros). 



Boscii Macq. Carolina. Macq. Dipt. Exot. II, 2, 100, 23, tab. xvii, 



fig. 2. Mem. de Lille, 1841, p. 160. 

 cingulatus Macq. Florida. Macq. Dipt. Exot. 4e Suppl. p. 155, 53. 



Mem. de Lille, 1849, p. 459. 



coalescens Walk. North America. Walker, Dipt. Saund. Ill, 237. 



contiguus Macq. Philadelphia. Macq. Dipt. Exot. 2e Suppl. p. 62, 



4. Mem. de Lille, 1846, p. 78 (Sphaerophoria) . 

 concavus Say. Penna. (Say) ; Mass. (Harris Cat. ) ; Nova Scotia, 



Huds. Bay, New York (Walker). Say, J. Acad. Phil. Ill, 89, 3 



(Scaeva). Wied. Auss. Zweifl. II, 130, 24. Walker, List, etc. Ill, 581. 



Corbis Walk. North America. Walker, Dipt. Saund. Ill, 236. 



cylindricus Say. Philadelphia (Say) ; Mass. (Harris Cat.). Say, 



Amer. Entom. I, tab. xi. Wied. Auss. Zweifl. II, 138, 38. 

 delineatus Macq. Mexico. Macq. Dipt. Exot. ler Suppl. p. 139, 37. 



Mem. de Lille, 1844, p. 267, tab. xi, fig. 13. 



dimensus Walk. North America. Walker, Dipt. Saund. Ill, 235. 



dimidiatus Macq. Georgia. Macq. Hist. Nat. Dipt. I, 537, 10. 



dimidiatus Fab. West Indies. Fab. Ent. Syst. IV, 310, 118 (Syr- 



pkus). Syst. Antl. p. 254, 25 (Scaeva). Wied. Auss. Zweifl. II, 140, 42. 

 diversipes Macq. Newfoundland. Macq. Dipt. Exot. 4e Suppl. p. 



155, 54. Mem. de Lille, 1849, p. 459. 



ectypus Say. Mexico. Say, J. Acad. Phil. VI, 165, 3. 



emarginatus Say. Florida (Say); Huds. Bay (Walk.). Say, J. 



Acad. Phil. Ill, 91, 5 (Scaeva). Wied. Auss. Zweifl. II, 119, 4. 



Walker, List, etc. Ill, 581. 



encaustus Harris. Cat. Ins. Mass. 



fuscanipennis Macq. Baltimore. Macq. Dipt. Exot. 5e Suppl. p. 95, 



58. Mem. de Lille, 1855. 

 geminatus Say. U. States (Say) ; Mass. (? Harris Cat.). Say, J. 



Acad. Phil. Ill, 92, 7 (Scaeva). Wied. Auss. Zweifl. II, 145, 50. 

 geniculatus Macq. Newfoundland. Macq. Dipt. Exot. II, 2, 101, 24, 



tab. xvii, fig. 5. Mem. de Lille, 1841, p. 161. 

 gracilis Meig. Europe (aut.); N. York (Walk.). Meigen, Macquart, 



etc. Walker, List, etc. Ill, 589. 

 granditarsa Forster. Europe (aut.); Huds. Bay (Walk.). Forster, 



Fabr. Meig. (= OcymiM.eig. and /o&atasMeig.) etc. Walker, List, etc. 



Ill, 591. 



Gurges Walk. North America. Walker, Dipt. Saund. Ill, 236. 



guttatus Meig. Europe (aut.) ; Huds. Bay (Walk.). Meigen, Zet- 



terstedt, etc. Walker, List, etc. Ill, 586. 



hieroglyphicus Meig. Europe (aut.); Nova Scotia (Walk.). Mei- 

 gen, etc. Walker, List, etc. Ill, 593 (Sphaerophoria). 



