<==o Ethmostigmus Pocock, 1898
   |-- E. albidus (Tömösváry, 1885)
   |-- E. australianus Chamberlin, 1920
   |-- E. californicus Chamberlin, 1958
   |-- E. coonooranus Chamberlin, 1920
   |-- E. curtipes Koch, 1983
   |-- E. granulosus Pocock, 1898
   |-- E. muiri Koch, 1983
   |-- E. nudior Koch, 1983
   |-- E. pachysoma Koch, 1983
   |-- E. parkeri Koch, 1983
   |-- E. platycephalus ( Newport, 1845) [Heterostoma platycephala Newport, 1844; Heterostoma platycephalus Newport 1844]
   |-- E. pygomegas (Kohlrausch, 1881) [Heterostoma pygomega Kohlrausch, 1881 or 1879; Heterostomarapax Haase, 1887]
   |-- E. relictus Chamberlin, 1944
   |--o E. rubripes (Brandt, 1840)
   |  |-- E. r. platycephalus ( Newport, 1845) [Ethmostigmus platycephalus Newport, 1845; Ethmostigmus platycephalus cribrifer (Gervais, 1847); Ethmostigmusplatycephalus loriae (Silvestri, 1894); Heterostoma loriae Silvestri, 1894; Heterostoma platycephala Newport, 1845; Scolopendra cribrifera Gervais, 1847]
   |  |-- E. r. rubripes (Brandt, 1840) [Ethmostigmus australianus Chamberlin, 1920; Ethmostigmus bisulcatus (Temesvary, 1885); Heterostoma bisulcatum Temesvary, 1885; Heterostomarubripes (Brandt, 1840); Heterostoma sulcidens Newport, 1844; Scolopendra rubripes Brandt, 1840; Scolopendra rapax Walckenaer & Gervais, 1847; Heterostoma rubripes grossipes Pocock, 1891; Heterostoma crassipes Silvestri, 1894; Heterostoma flava Newport, 1845; Heterostoma fasciata Newport, 1844; Scolopendra sulcicornis Newport, 1844; Scolopendra sulcidens Newport, 1844; Scolopendra squalidens Newport, 1844; Scolopendra megacephala Newport, 1844; Scolopendra spinulosa Brandt, 1840]
   |  `-- E. r. spinosus ( Newport, 1845) [Heterostoma spinosa Newport, 1845; Ethmostigmus platycephalus spinosus ( Newport, 1845); Ethmostigmus spinosus ( Newport, 1845)]
   |-- E. rugosus (Haase, 1887) [Heterostoma rugosum Haase, 1887]
   |-- E. sulcidens (Kohlrausch, 1881) [Heterostoma sulcidens Newport, 1844]
   |--o E. trigonopodus (Leach, 1817) [Ethmostigmus australianus stechowi Verhoeff, 1941; Heterostoma trigonopoda (Leach, 1817); Scolopendra trigonopoda Leach, 1817]
   |  |-- E. t. trigonopodus (Leach, 1817)
   |  `-- E. t. pygomenasoides Lewis, 1992
   |-- E. tristis (Meinert, 1886) [Heterostoma triste Meinert, 1886]
   |-- E. venenosus (Attems, 1897)
   `-- E. waiainus Chamberlin, 1920

Reference(s):

Special thanks to:

Jos Dols, for gathering this information.