92 



INDEX. 



Subula, 18 

 Suneehes, 37 

 Symplecta, 6 

 Syritta, 48 

 SYRPHICI, 46 

 Syrphus, 50 

 Systropus, 44 



TABANI, 18 

 Tabanus, 19 

 Tachina, 64 

 Tachydromia, 46 

 TACHYDROMI^:, 46 

 Tseniaptera, 81 

 Tanypus, 4 

 Tephritis, 77, 79, 80 

 Tetanocera, 82 

 Tetanura, 80 

 Tkeresia, 73 

 Thereva, 38 

 Tipula, 7 



TlPULARIjE, 1 



Toxomerus, 48 

 Toxophora, 44 



Trchocera, 9 

 Toxorhinia. 6 

 Trichopoda, 63 

 TRINEDR^E, 85 

 Tropidia, 53 

 Trupanea, 32 

 Trypeta, 78 

 Tryphera, 66 

 Trypoderma, 61, 62 



Ulidia, 81 

 UropJwra, 79, 80 



Volucella, 56 



XYLOPHAGI, 18 

 Xylophagus, 18 

 Xylota, 49 

 XYLOTOH.E, 38 



Zelia, 69, 70 

 Zenillia, 66 

 Zodion, 60 



PUBLISHED BY THE 



SMITHSONIAN INSTITUTION. 

 APRIL, 1858. 



