Chthoniidae Daday, 1888
Kleptochthonius affinis Muchmore, 1976
Kleptochthonius anophthalmus Muchmore, 1970
Kleptochthonius attenuatus Malcolm & Chamberlin, 1961
Kleptochthonius barri Muchmore, 1965
Kleptochthonius binoculatus Muchmore, 1974
Kleptochthonius cerberus Malcolm & Chamberlin, 1961
Kleptochthonius charon Muchmore, 1965
Kleptochthonius crosbyi (Chamberlin, 1929)
Kleptochthonius daemonius Muchmore, 1965
Kleptochthonius erebicus Muchmore, 1965
Kleptochthonius geophilus Malcolm & Chamberlin, 1961
Kleptochthonius gertschi Malcolm & Chamberlin, 1961
Kleptochthonius griseomanus Muchmore, 2000
Kleptochthonius hageni Muchmore, 1963
Kleptochthonius henroti (Vachon, 1952)
Kleptochthonius hetricki Muchmore, 1974
Kleptochthonius hubrichti Muchmore, 1965
Kleptochthonius infernalis Malcolm & Chamberlin, 1961
Kleptochthonius inusitatus Muchmore, 1994
Kleptochthonius kerkeleri Muchmore, 1965
Kleptochthonius krekeleri Muchmore, 1965
Kleptochthonius lewisorum Muchmore, 2000
Kleptochthonius lutzi Malcolm & Chamberlin, 1961
Kleptochthonius magnus Muchmore, 1966
Kleptochthonius microphthalmus Malcolm & Chamberlin, 1961
Kleptochthonius multispinosus (Hoff, 1945)
Kleptochthonius myopius Malcolm & Chamberlin, 1961
Kleptochthonius oregonus Malcolm & Chamberlin, 1961
Kleptochthonius orpheus Muchmore, 1965
Kleptochthonius packardi (Hagen, 1879)
Kleptochthonius pluto Muchmore, 1965
Kleptochthonius polychaetus Muchmore, 1994
Kleptochthonius proserpinae Muchmore, 1965
Kleptochthonius proximosetus Muchmore, 1976
Kleptochthonius regulus Muchmore, 1970
Kleptochthonius rex Malcolm & Chamberlin, 1961
Kleptochthonius sheari Muchmore, 1994
Kleptochthonius similis Muchmore, 1976
Kleptochthonius stygius Muchmore, 1965
Kleptochthonius tantalus Muchmore, 1966
