<==o Scolopocryptopinae [Scolocryptopidae Pocock, 1896]
   |--o Dinocryptops Crabill, 1953
   |  |-- D. miersii ( Newport, 1845) [Dinocryptops miersi Newport, 1845]
   |  `-- D. puruensis Bücherl, 1941
   |--o Kartops Archey, 1923
   |  `-- K. guianae Archey, 1923
   |--o Kethops Chamberlin, 1912
   |  |-- K. atypus Chamberlin, 1943
   |  |-- K. euterpe Chamberlin, 1941
   |  |-- K. leioceps Chamberlin, 1925
   |  `-- K. utahensis (Chamberlin, 1909)
   |-- Newportia Gervais, 1847
   |--  Newportides Chamberlin, 1921
   |--o Otocryptops Haase, 1887
   |  |-- O. aberrans Chamberlin, 1920
   |  |-- O. ferrugineus (Linnaeus, 1767)
   |  |-- O. gracilis (Wood, 1862)
   |  |-- O. luzonica Karsch, 1884 [Otocryptops luzonicus (Kohlrausch, 1881)]
   |  |-- O. melanostomus Newport, 1845
   |  |-- O. mundus Chamberlin, 1911
   |  |-- O. nigridinus (McNeill, 1887) [Otocryptops nigridius (McNeill, 1887)]
   |  |-- O. rubiginosa (Koch, 1878) [Otocryptops rubiginosus (Koch, 1878)]
   |  |-- O. sexspinosus (Say, 1821)
   |  |-- O. spinulifer Bücherl, 1949
   |  `-- O. verdescens Chamberlin, 1920
   |-- Scolopocryptops Newport, 1844
   |--o Thalkethops Crabill, 1960
   |  `-- T. grallatrix Crabill, 1960
   `--o  Tidops Chamberlin, 1915
      |-- T. colaris (Kraepelin, 1903) [Tidops echinopus Chamberlin, 1921; Newportia bicegoi Brölemann, 1905; Newportia bicegoi colaris (Kraepelin, 1903); Newportia colaris Kraepelin, 1903]
      `-- T. simus Chamberlin, 1915

Reference(s):

Special thanks to:

Jos Dols, for gathering this information.