Syrphidae
Microdontinae
Microdon baliopterus Loew  (8)
M. fulgens Wiedemann  (10)
M. laetus Loew  (8)
M. rufipes (Macquart)  (8)
Syrphinae
Paragini
Paragus haemorrhous Meigen  (5,8)(10, as P. tibialis (Fallen))
Toxomerini
Toxomerus geminatus (Say)  (4,5,10,11)
T. marginatus (Say)  (5,8)(10,11,12, as Mesograpta)
T. politum (Say)  (5)(10,11, as Mesograpta)
Melanostomatini
Platycheirus quadratus (Say)  (4,5,8,10)
Syrphini
Syrphus knabi Shannon  (4,5,10)
S. opinator Osten Sacken  (5)
S. ribesii L.  (1)(10,11, as S. vittafrons Shannon)
Epistrophe emarginata (Say)  (4,5,10)
Eupeodes americanus (Wiedemann)  (4,5)(10,11, as Metasyrphus)
E. perplexus (Osburn)  (4,5)(10, as Metasyrphus)
E. pomus (Curran)  (4,5,6)(7, as Metasyrphus)(10, as Metasyrphus
vinelandi (Curran))
E. volucris Osten Sacken  (4,5,10,11)
Ocyptamus fascipennis (Wiedemann)  (5)(10,11, as Baccha)
O. fuscipennis (Say)  (4,5,8)(10, as Baccha)
Pseudodoros clavatus Fab.  (5,8)(10, as Baccha)
Allograpta exoticus (Wiedemann)  (8)
A. obliqua (Say)  (4,5,8,10,11)
Sphaerophoria contigua Macquart  (5,8)(10, as S. cylindrica (Say))
Eristalinae
Pipizini
Pipiza femorelis Loew  (2,10)
Trichopsomyia banksi (Curran)  (4)(10, as Pipiza)(11, as Parapenium)
Rhingiini
Ferdinandea dives (Osten Sacken)  (4,10)
Rhingia nascia Say  (4,10)
Volucellini
Volucella barei Curran  (10)
V. nigra Greene  (5,10)
V. vesicularia Curran  (5,7,10)
Copestylum vittatum Thompson  (4,5,8)(10, as Volucella fasciata 
Macquart)
Brachyopini
Brachyopa vacua Osten Sacken  (3,10)
Orthonevra nitida (Wiedemann)  (4,5,8)(10,11, as Chrysogaster)
O. pictipennis Loew  (4)(10, as Chrysogaster)
Chrysogaster antitheus Walker  (8)
C. inflatifrons Shannon  (7)
Myolepta nigra Loew  (4,10)
M. strigilata Loew  (5,10)
M. varipes Loew  (4,10)
Merodontini
Eumerus tuberculatus Rondani  (1)
Psilota buccata (Macquart)  (5,10)
P. flavidipennis Macquart  (7)
Eristalini
Helophilus fasciatus Walker  (4,5,10)
H. latifrons Loew  (5,8,10)
H. relictus (Curran & Fluke)  (5)(10, as Lejops)
Mallota bautias (Walker)  (4,5,8,10)
M. posticata (Fab.)  (5,10)(10, as M. fascialis Hunter)
Meromacrus acutus (Fab.)  (5,10)
Eristalis dimidiatus Wiedemann  (10)
E. stipator Osten Sacken  (5,8)(10, as E. latifrons Loew)
E. tenax (L.)  (5,10)
E. transversus Wiedemann  (3,4,5,10)
Eristalinus aeneus (Scopoli)  (4,5)(10, as Eristalis)
Palpada agrorum (Fab.)  (8)
P. alhambra Hull  (8)
P. vinetorum (Fab.)  (4,5,8)(10,13, as Eristalis)
Cerioidini
Sphiximorpha signifera (Loew)  (5)(10,11, as Ceriana)
Milesiini
Sphecomyia nasica Osburn  (5,10)
S. vittata (Wiedemann)  (5,10)
Somula decora Macquart  (10)
Temnostoma daochus (Walker)  (10, as T. pictulum Williston)
Pterallastes thoracicus Loew  (4,10)
Teuchocnemis bacuntius (Walker)  (10)
Milesia scutellata Hull  (4,10)
M. virginiensis (Drury)  (4,5,10)
Spilomyia longicornis Loew  (4,8,10)
S. texana Johnson  (4,10)
Tropidia albistylum Macquart  (4,7,9,10)
Syritta pipiens (L.)  (4,5,8,10)
Xylota angustiventris Loew  (4,10)
X. bicolor Loew  (5,10)
X. ejuncida Say  (4,10)
Chalcosyrphus metallica (Wiedemann)  (4,8)(10,11, as Xylota)
Brachypalpus oarus (Walker)  (3,10)
 1. In OSU Collection - Det. D. C. Arnold
 2. In OSU Collection - Det. G. A. Coovert
 3. In OSU Collection - Det. C. H. Curran
 4. In OSU Collection - Det. C. L. Fluke
 5. In OSU Collection - Det. D. A. Shorter
 6. In OSU Collection - Det. W. W. Wirth
 7. Reported in Diptera Catalog
 8. Reported by Kondratieff et al., 2007
 9. Reported by Shannon, 1926
10. Reported by Shorter & Drew, 1976
11. Reported by Smith et al., 1996
12. Reported by Stoner et al., 1962
13. Reported by Telford, 1970
42 genera - 74 species