GERRIDAE
Gerrinae
Gerrini
Gerris comatus Drake & Hottes  (6,7,10,11)
G. marginatus Say  (1,2,4,5,7,8,9,12,13,14)
G. nebularis Drake & Hottes  (2,5,12,13)
G. nyctalis Drake & Hottes  (12,13)
G. remigis Say  (1,2,5,7,8,9,10,11,12,13,14)
Limnoporus canaliculatus Say  (9)(12,13, as Gerris)
Neogerris hesione (Kirkaldy)  (2,5,7,8,9,14)(12,13, as Limnogonus)
Rhagodotarsinae
Rheumatobates hungerfordi Wiley  (5,7,12,13)
R. palosi Blatchley  (3,5,7)(12,13, as R. rileyi palosi)(11, as R. rileyi)
R. tenuipes Meinert  (7)
R. trulliger Bergroth  (5,7,11,12,13)
Trepobatinae
Metrobates hesperius depilatus Hussey & Herring  (7 ?)(5,12,13)
Trepobates inermis Esaki  (12,13)
T. knighti Drake & Harris  (1,2,5,7,8,9,12,13,14)
T. subnitidus Esaki  (2,3,5,7,8,9,12,13,14)
6 genera - 15 species
  1. In OSU Collection - Det. D. C. Arnold
  2. In OSU Collection - Det. H. M. Harris
  3. In OSU Collection - Det. P. D. Kittle
  4. In OSU Collection - Det. R. I. Sailer
  5. In OSU Collection - Det. K. F. Schaefer
  6. In OSU Collection - Determiner unknown
  7. Reported by Henry & Froeschner, 1988
  8. Reported by Kondratieff et al., 2005
  9. Reported by Kondratieff et al., 2007
10. Reported by McKinley et al., 1972
11. Reported by Reisen, 1975
12. Reported by Schaefer & Drew, 1964
13. Reported by Schaefer & Drew, 1968
14. Reported by Zuellig et al., 2006