LEIODIDAE
Coloninae
Colon dentatum LeConte  (11)
C. grossum Peck & Stephan  (11)
C. hubbardi Horn  (11)
C. oblongum Blatchley  (11)
C. schwarzi Hatch  (11)
C. thoracicum Horn  (11)
Leiodinae
Leiodini
Isoplastus fossor Horn  (7)
Leiodes alternata Melsheimer  (3)( = Anisotoma oklahomensis Brown)
L. stephani Baranowski  (3)
L. variipennis Baranowski  (3)
Zeadolopus sp.  (7)
Pseudoliodini
Colenis bifida Peck  (5)
C. impunctata LeConte  (5)
C. ora Peck  (5)
C. stephani Peck  (5)
Scotocryptini
Aglyptinus laevis (LeConte)  (8)
Cholevinae
Anemadini
Dissochaetus oblitus (LeConte)  (6)
Cholevini
Catops americanus Hatch  (10)
C. basilaris (Say)  (12)
C. geomysi Peck & Skelley  (10)
C. simplex Say  (10)
Prionochaeta opaca (Say)  (10)
Sciodrepoides latinotum Peck & Cook  (10)
S. terminans (LeConte)  (10)(12, as fumata terminans (LeConte))
S. watsoni (Spence)  (10)
Ptomaphagini
Ptomaphagus cavernicola cavernicola Schwarz  (4)
P. consobrinus (LeConte)  (2,4)
P. fisus Horn (12)
P. shapardi Sanderson  (2,4)
Platypsyllinae
Platypsyllus castoris Ritsema  (1,9)
  1. In OSU Collection - Det. S. B. Peck
  2. Reported in Coleoptera Catalog
  3. Reported by Baranowski, 1993
  4. Reported by Peck, 1973
  5. Reported by Peck, 1998
  6. Reported by Peck, 1999
  7. Reported by Peck, 2001
  8. Reported by Peck, 2004
  9. Reported by Peck, 2006
  10. Reported by Peck & Cook, 2002
11. Reported by Peck & Stephan, 1996
12. Reported by Shepard, 1978
12 genera - 30 species