48 



DIDEA. 



Macquart, Hist. Nat. Dipt. I, p. 508, 1834. Enica Meigen. 



*fuscil)es Loew.i^) Centur. IV, 83. Pennsylvania. 



*laxa u. sp., see in the Appendix. White Mts., X. H.; Lake Superior. 



MESOGRAPTA. 



Loew, Centur. Vol. II, p. 210; Messogramma Loew, Centur. VI, 47, 1865. 



•^^Boscii Macquart, Dipt. Exot. II, 2, p. 100, 23; Tab. XVII, fig. 2 {Syrplius). 



Carolina. 

 *coalescen3 Walker, Dipt. Saund. p. 237 {Syrphus). North America {Mcso- 



grapta — Verrall inlitt.). 

 *Corbi3 Walker, Dipt. Saund. p. 235 {Syrphus) North America {Mesofjrapta — 

 Verrall in litt.). 

 dimeusus Walker, Dipt. Saund. p. 235 {Syrphus). North America {Meso- 



grapta — Verrall in litt.). 

 *geininata Say, J. Acad. Phil. Ill, p. 92, 7 (Scaevn); Wiedemann, Auss. Zw. II, 

 p. 145, 50 {Syyphus). United States (common). 

 Toxomerus notatus Macquart, Dipt. Exot. 5e Suppl. p. 93. 

 G urges Walker, Dipt. Saund. p. 236 {SyrpMs). North America {Mesograpta — 



Verrall in litt.). 

 interrogans Walker, Dipt. Saund. p. 238 {Syrphus). North America. 

 *marginata Say, J. Acad. Phil. Ill, p. 92, 6 {Scaeva); Wiedemann, Auss. Zw. 



II, p. 146, 52 (%?p7«/s). United States (common). 

 *polita Say, J. Acad. Phil. Ill, p. 88, 1 {Scaeva); id., American Entomology, I, 

 Tab. XI {Syrphus); Wiedemann, Auss. Zw. II, p. 132, 28 {id.). Pennsyl- 

 vania; District Columbia ; also in Cuba. 

 Syrphus cingulatulus Macquart, Dipt. Exot. 4e Suppl. p. 155, 53. 

 Syrphus Iiecticus Jaennicke, Neue Exot. Dipt. p. 90. Illinois. 

 *par villa Loeic, Centur. VI, 47. Florida. 

 *planiventris Zoew, Centur. VI, 49. Florida. 

 Ouintius Walker, Dipt. Saund. p. 339 {Syrphu^). United States. 



aucliorata Macquart, Dipt. Exot. II, 2, p. 97 ; Tab. 16, fig. 8 {Syrphus). Bra- 

 zil; N. America. 

 "•''arcifera Loew, Centur. VI, 52. Cuba. 



cctypus Say, J. Ac. Phil. VI, p. 165, 8 {Syrphus). Cuba. 

 *laciniosa Loew, Centur. VI, 50. Cuba. 



