- Ceuthophilus pallidus Thomas, 1872 in Scudder, 1876: 261.
- Ceuthophilus pallidus Thomas, 1872 in Scudder, 1894: 90.
- Ceuthophilus bruneri Scudder, 1894: 79.
- Ceuthophilus discolor Scudder, 1894: 88.
Syntype; male; b7ff898b-5d29-440d-a62a-adfc85f3b321; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Nebraska: Cuming: West Point
- Ceuthophilus inquinatus Scudder, 1894: 87.
Syntype; male; 4931c387-bf1a-4011-be7b-980487599dba; deposited at: Academy of Natural Sciences of Philadelphia (ANSP); United States: Nebraska: Jefferson: Fairbury
- Ceuthophilus pallidus Thomas, 1872 in Scudder & Cockerell, 1902: 57.
- Ceuthophilus pallidus Thomas, 1872 in Kirby, 1906: 134.
- Ceuthophilus bruneri Scudder, 1894 in Kirby, 1906: 133.
- Ceuthophilus discolor Scudder, 1894 in Kirby, 1906: 134.
- Ceuthophilus inquinatus Scudder, 1894 in Kirby, 1906: 134.
- Ceuthophilus tuckeri Rehn, 1907: 445.
Holotype; male; e2f9b445-089f-447e-bb84-1feecfe68192; deposited at: University of Kansas - Biodiversity Institute (SEMC); United States: Kansas: Douglas: Lawrence
- Ceuthophilus bruneri Scudder, 1894 in Rehn & Hebard, 1912: 70.
- Ceuthophilus discolor Scudder, 1894 in Rehn & Hebard, 1912: 71.
- Ceuthophilus inquinatus Scudder, 1894 in Rehn & Hebard, 1912: 71.
- Ceuthophilus tuckeri Rehn, 1907 in Rehn & Hebard, 1912: 102.
- Ceuthophilus tuckeri Rehn, 1907 (synonym of Ceuthophilus divergens Scudder, 1862) in Hebard, 1925
- Ceuthophilus pallidus Thomas, 1872 in Hebard, 1927: 11.
- Ceuthophilus pallidus Thomas, 1872 in Hebard, 1928: 301.
- Ceuthophilus discolor Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Hebard, 1928: 301.
- Ceuthophilus inquinatus Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Hebard, 1928: 301.
- Ceuthophilus tuckeri Rehn, 1907 (synonym of Ceuthophilus pallidus Thomas, 1872) in Hebard, 1928: 301.
- Ceuthophilus bruneri Scudder, 1894 (subjective synonym of Ceuthophilus pallidus Thomas, 1872) in Hebard, 1928: 301.
- Ceuthophilus pallidus Thomas, 1872 in Hebard, 1932: 206.
- Ceuthophilus pallidus Thomas, 1872 in Hebard, 1935: 312.
- Ceuthophilus pallidus Thomas, 1872 in Hebard, 1935: 77.
- Ceuthophilus discolor Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Hubbell, 1936: 269.
- Ceuthophilus inquinatus Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Hubbell, 1936: 269.
- Ceuthophilus bruneri Scudder, 1894 (subjective synonym of Ceuthophilus pallidus Thomas, 1872) in Hubbell, 1936: 269.
- Ceuthophilus (Ceuthophilus) pallidus Thomas, 1872 in Hubbell, 1936: 269.
- Ceuthophilus discolor Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Karny, 1937: 276.
- Ceuthophilus inquinatus Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Karny, 1937: 276.
- Ceuthophilus bruneri Scudder, 1894 (subjective synonym of Ceuthophilus pallidus Thomas, 1872) in Karny, 1937: 276.
- Ceuthophilus (Ceuthophilus) pallidus Thomas, 1872 in Karny, 1937: 276.
- Ceuthophilus pallidus Thomas, 1872 in Tinkham, 1948: 635.
- Ceuthophilus (Ceuthophilus) pallidus Thomas, 1872 in Vickery & Kevan, 1986: 152.
- Ceuthophilus discolor Scudder, 1894 (synonym of Ceuthophilus pallidus Thomas, 1872) in Otte, 2000: 62.