50 , SYRPHICI. 



ornata Fabr. North America (Fabr. Wied.) ; Pennsylvania, Missouri 



(jnusaeum nostrum); Massachusetts (Harris); Guadalupe (Macq.). 



Fabr. Syst. Antl. p. 188, 5. Wied. Auss. Zweifl. II, 106, 4. Macq. 



Dipt. Exot. II, 2, 81, 4, pi. xv, fig. 4. Mem. de Lille, 1841, p. 141. 



Drury, Illustr. II, pi. 37, fig. 6 (Musca virginiensis). Hausm. Ent. 



Bern. II, 67, 10 (Syrphus trifasciatus) . Walker, List, etc. Ill, 560 (the 



synonymy is taken from Wiedem.). 



ruficrus Wied. Cuba. Wied. Auss. Zweifl. II, 105, 3. 



verbosa Harris. Massachusetts. Harris, Cat. Ins. Mass. Walker, 



List, etc. Ill, 568 (described). 



Rhingia Scopoli. 



nasica Say. U. States (Say) ; Massachusetts (Harris Cat.) ; Nova Sco- 

 tia, New York (Walk.). Say, J. Acad. Phil. Ill, 94. Wied. Auss. 



Zweifl. II, 115, 1. Walker, List, etc. Ill, 570. 



Psilota Meig. 



flavidipennis Macq. Philadelphia. Macq. Dipt. Exot. 5e Suppl. 



97, 2. Mem. de Lille, 1855, tab. v, fig. 5. 



Pipiza Fallen. 



buccata Macq. Carolina. Macq. Dipt. Exot. II, 2, 107. Mem. de 



Lille, 1841, p. 167, tab. xviii, fig. 2. 



CSirysogaster Meigen. 



Antitheus Walk. New York. Walker, List, etc. Ill, 572. 



Apisaon Walk. New York. Walker, List, etc. Ill, 572. 



nitidus Wied. North America. Wied. Auss. Zweifl. II, 116, 1. 



recedens Walk. U. States. Walk. Dipt. Saund. Ill, 228. 



ruficornis Harris. Cat. Ins. Mass. 



Eplstrophe Walk. 



conjungens Walk. U. States. Walk. Dipt.,Saund. Ill, 242, tab. vi, 



fig. 5. 



Syrpliws Liu. 

 adolescens Walk. Huds. Bay, Nova Scotia. Walker, List, etc. Ill, 



584. 



Aesyctes Walk. Huds. Bay. Walk. 1. c. p. 591. 



afiinis Say. Arkansas (Say) ; Huds. Bay (Walk.). Say, J. Acad. 



Phil. Ill, 93, 9 (Scaeva). Wied. Auss. Zweifl. II, 117, 2. Walker, 



List, etc. Ill, 581. 



Agnon Walk. Nova Scotia, Huds. Bay. Walker, List, etc. Ill, 579. 



Alcidice Walk. Huds. Bay. Walker, 1. c. p. 579. 



ambiguus Zett. Greenland. Zetterstedt, Ins. Lapponica. Stseger, 



Greenland's Antliater. 

 americanus Wied. N. America (Wied.) ; Huds. Bay (Walk.). 



Wied. Auss. Zweifl. II, 129, 22. Macq. Dipt. Exot. II, 2, 94, 12. 



Mem. de Lille, 1841, p. 154. Walker, List, etc. Ill, 581. 



