Taxa included

Hoff, C.C. (1949b). The pseudoscorpions of Illinois. Bulletin of the Illinois Natural History Survey 24: 407–498.

Taxon
Chelanops affinis Banks, 1894 (Pseudoscorpiones: Chernetidae) n/a, fig. 33, Chelanops affinis
Tartarocreagris ozarkensis (Hoff, 1945) (Pseudoscorpiones: Neobisiidae) n/a, figs 22–23, Microcreagris ozarkensis
Hesperochernes canadensis Hoff, 1945 (Pseudoscorpiones: Chernetidae) n/a, fig. 41, Hesperochernes canadensis
Chernes sanborni Hagen, 1868 (Pseudoscorpiones: Chernetidae) n/a, figs 42–43, Hesperochernes sanborni (Hagen)
Hesperochernes mirabilis (Banks, 1895) (Pseudoscorpiones: Chernetidae) n/a, figs 38a–c, Pseudozaona mirabilis (Banks)
Pseudoscorpiones de Geer, 1778 413–427, (as Pseudoscorpionida), Pseudoscorpiones de Geer
Chthoniidae Daday, 1889 (Pseudoscorpiones) 429, Tridenchthoniidae Balzan
Pseudoscorpiones de Geer, 1778 429, Heterosphyronida
Verrucaditha spinosa (Banks, 1893) (Pseudoscorpiones: Chthoniidae) 429–431, figs 12a–e, Verrucaditha spinosa (Banks)
Chthoniidae Daday, 1889 (Pseudoscorpiones) 431, Chthoniidae Daday
Chthonius C.L. Koch, 1843 (Pseudoscorpiones: Chthoniidae) 432, Chthonius
Ephippiochthonius Beier, 1930 (Pseudoscorpiones: Chthoniidae) 433, Chthonius Beier
Chthonius ischnocheles (Hermann, 1804) (Pseudoscorpiones: Chthoniidae) 433, fig. 13, Chthonius (Chthonius) ischnocheles (Hermann)
Ephippiochthonius tetrachelatus (Preyssler, 1790) (Pseudoscorpiones: Chthoniidae) 433–434, figs 14a–f, Chthonius (Ephippiochthonius) tetrachelatus (Preyssler)
Kleptochthonius (Kleptochthonius) multispinosus (Hoff, 1945) (Pseudoscorpiones: Chthoniidae) 434–436, figs 16a–b, Heterochthonius multispinosus
Apochthonius Chamberlin, 1929 (Pseudoscorpiones: Chthoniidae) 434, Apochthonius
Apochthonius moestus (Banks, 1891) (Pseudoscorpiones: Chthoniidae) 434, figs 11, 15a–d (misidentification; true identification unknown), Apochthonius moestus (Banks)
Kleptochthonius (Kleptochthonius) crosbyi (Chamberlin, 1929) (Pseudoscorpiones: Chthoniidae) 436, Heterochthonius crosbyi (Chamberlin)
Mundochthonius Chamberlin, 1929 (Pseudoscorpiones: Chthoniidae) 436, Mundochthonius
Mundochthonius rossi Hoff, 1949 (Pseudoscorpiones: Chthoniidae) 437–440, figs 17a–e, Mundochthonius rossi
Mundochthonius sandersoni Hoff, 1949 (Pseudoscorpiones: Chthoniidae) 440–443, figs 18a–g, Mundochthonius sandersoni
Pseudoscorpiones de Geer, 1778 443, Diplosphyronida
Kleptochthonius (Chamberlinochthonius) packardi (Hagen, 1879) (Pseudoscorpiones: Chthoniidae) 443, Genus? packardi Hagen
Neobisium Chamberlin, 1930 (Pseudoscorpiones: Neobisiidae) 444, Neobisium
Neobisiidae Chamberlin, 1930 (Pseudoscorpiones) 444, Neobisiidae
Novobisium tenue (Chamberlin, 1930) (Pseudoscorpiones: Neobisiidae) 444, figs 20–21 (as Neobisium carolinensis tenuis [sic]), Neobisium carolinensis tenue
Microcreagris Balzan, 1892 (Pseudoscorpiones: Neobisiidae) 444, Microcreagris
Microbisium Chamberlin, 1930 (Pseudoscorpiones: Neobisiidae) 444–445, Microbisium
Microbisium brunneum (Hagen, 1868) (Pseudoscorpiones: Neobisiidae) 445, figs 24a–b, Microbisium brunneum (Hagen)
Microbisium confusum Hoff, 1946 (Pseudoscorpiones: Neobisiidae) 446, figs 25a–c, Microbisium confusum
Garypidae Simon, 1879 (Pseudoscorpiones) 447, Garypidae Simon
Larca Chamberlin, 1930 (Pseudoscorpiones: Larcidae) 447, Larca
Larca granulata (Banks, 1891) (Pseudoscorpiones: Larcidae) 447–448, figs 26, 27a–d, Larca granulata (Banks)
Pseudoscorpiones de Geer, 1778 449, Monosphyronida
Chernetidae Menge, 1855 (Pseudoscorpiones) 449, Chernetidae
Americhernes oblongus (Say, 1821) (Pseudoscorpiones: Chernetidae) 450–453, figs 8, 30a–b, Lamprochernes oblongus (Say)
Lamprochernes Tömösváry, 1883 (Pseudoscorpiones: Chernetidae) 450, Lamprochernes Tömösváry
Lamprochernes minor Hoff, 1949 (Pseudoscorpiones: Chernetidae) 453–454, figs 29a–b, Lamprochernes minor
Parachernes Chamberlin, 1931 (Pseudoscorpiones: Chernetidae) 456, Parachernes
Parachernes squarrosus Hoff, 1949 (Pseudoscorpiones: Chernetidae) 456–460, figs 32a–e, Parachernes squarrosus
Chelanops Gervais, 1849 (Pseudoscorpiones: Chernetidae) 460–461, Chelanops Gervais
Pselaphochernes Beier, 1932 (Pseudoscorpiones: Chernetidae) 461, Pselaphochernes
Pselaphochernes parvus Hoff, 1945 (Pseudoscorpiones: Chernetidae) 461–464, figs 34a–d, Pselaphochernes parvus
Dendrochernes Beier, 1932 (Pseudoscorpiones: Chernetidae) 464–465, Dendrochernes
Reginachernes Hoff, 1949 (Pseudoscorpiones: Chernetidae) 465, Reginachernes
Chernes ewingi (Hoff, 1949) (Pseudoscorpiones: Chernetidae) 466–467, figs 36a–d, Reginachernes ewingi
Chernes lymphatus (Hoff, 1949) (Pseudoscorpiones: Chernetidae) 467–471, figs 37a–d, Reginachernes lymphatus
Pseudozaona Beier, 1932 (Pseudoscorpiones: Chernetidae) 471, Pseudozaona
Dinocheirus Chamberlin, 1929 (Pseudoscorpiones: Chernetidae) 471–472, Dinocheirus
Dinocheirus pallidus (Banks, 1890) (Pseudoscorpiones: Chernetidae) 472–474, figs 39a–c, Dinocheirus pallidus (Banks)
Dinocheirus solus Hoff, 1949 (Pseudoscorpiones: Chernetidae) 474–476, figs 40a–b, Dinocheirus solus
Hesperochernes Chamberlin, 1924 (Pseudoscorpiones: Chernetidae) 476, Hesperochernes
Acuminochernes Hoff, 1949 (Pseudoscorpiones: Chernetidae) 476–477, Acuminochernes
Acuminochernes crassopalpus (Hoff, 1945) (Pseudoscorpiones: Chernetidae) 477–478, figs 44a–d, Acuminochernes crassopalpus (Hoff)
Mirochernes Beier, 1930 (Pseudoscorpiones: Chernetidae) 478, Mirochernes
Mirochernes dentatus (Banks, 1895) (Pseudoscorpiones: Chernetidae) 478–481, figs 45a–d, Mirochernes dentatus (Banks)
Illinichernes Hoff, 1949 (Pseudoscorpiones: Chernetidae) 481, Illinichernes
Illinichernes distinctus Hoff, 1949 (Pseudoscorpiones: Chernetidae) 481–484, figs 46a–e, Illinichernes distinctus
Chelanops corticis Ewing, 1911 (Pseudoscorpiones: Chernetidae) 484, Genus? corticis Ewing
Cheliferidae Risso, 1827 (Pseudoscorpiones) 485, Cheliferidae
Chelifer cancroides (Linnaeus, 1758) (Pseudoscorpiones: Cheliferidae) 486–487, figs 9, 48, Chelifer cancroides (Linnaeus)
Idiochelifer Chamberlin, 1932 (Pseudoscorpiones: Cheliferidae) 487, Idiochelifer
Idiochelifer nigripalpus (Ewing, 1911) (Pseudoscorpiones: Cheliferidae) 487–489, figs 49a–c, Idiochelifer nigripalpus (Ewing)
Paisochelifer Hoff, 1946 (Pseudoscorpiones: Cheliferidae) 489, Paisochelifer
Paisochelifer callus (Hoff, 1945) (Pseudoscorpiones: Cheliferidae) 489–491, figs 50a–e, Paisochelifer callus (Hoff)
Dactylochelifer Beier, 1932 (Pseudoscorpiones: Cheliferidae) 491, Dactylochelifer
Dactylochelifer copiosus Hoff, 1945 (Pseudoscorpiones: Cheliferidae) 491–492, figs 10, 51a–c, Dactylochelifer copiosus