1. Genus Allajulus C. L. Koch, 1847
2. Genus Amblyiulus Silvestri, 1896
3. Subfamily Archiulinae Attems, 1926
   1. Tribe Archiulini Attems, 1926 accepted as Schizophyllini Verhoeff, 1909 (unaccepted > junior objective synonym)
4. Genus Armeniophyllum Lohmander, 1932
5. Genus Brachyiulus Berlese, 1884
6. Subfamily Buchneriinae Verhoeff, 1941
7. Subfamily Calyptophyllinae Verhoeff, 1930
8. Genus Calyptophyllum Brölemann, 1922
9. Subfamily Campodinae Bollman, 1893
   1. Tribe Campodini Bollman, 1893
10. Genus Cryptoiulus Verhoeff, 1894
11. Subfamily Cylindroiulinae Verhoeff, 1930
12. Genus Cylindroiulus Verhoeff, 1894
13. Subfamily Deuteroiulinae Verhoeff, 1896
14. Genus Dolichoiulus Verhoeff, 1900
15. Subfamily Heteroiulinae Verhoeff, 1930
16. Genus Hylopachyiulus Attems, 1904
17. Genus Interleptoiulus Mršić, 1988
18. Subfamily Julinae Leach, 1814
    1. Genus Banatoiulus Tabacaru, 1985
    2. Tribe Brachyiulini Verhoeff, 1909
       1. Genus Byzantorhopalum Verhoeff, 1930
       2. Genus Chromatoiulus Verhoeff, 1894
       3. Genus Cyphobrachyiulus Verhoeff, 1900
       4. Genus Enghophyllum Lazányi & Vagalinski, 2013
       5. Genus Graecoiulus Vagalinski & Lazányi, 2018
       6. Genus Grusiniulus Lohmander, 1936
       7. Genus Iraniulus Attems, 1951
       8. Genus Italoiulus Attems, 1940
       9. Genus Leptomastigoiulus Verhoeff, 1897
       10. Genus Megaphyllum Verhoeff, 1894
       11. Genus Micropachyiulus Verhoeff, 1899
       12. Genus Omobrachyiulus Lohmander, 1936
       13. Genus Pontobrachyiulus Lohmander, 1939
       14. Genus Syriobrachyiulus Verhoeff, 1930
       15. Genus Titanophyllum Akkari, Stoev & Enghoff, 2011
       16. Genus Acropoditius Strasser, 1980 accepted as Cyphobrachyiulus (Acropoditius) Strasser, 1980 (downgraded to subgenus)
       17. Genus Anatolicus Verhoeff, 1941 accepted as Cyphobrachyiulus (Diaxylus) Attems, 1940
       18. Genus Ancistropus Verhoeff, 1943 accepted as Cyphobrachyiulus (Rhamphidoiulus) Attems, 1905 (monotypic type species transferred to subgenus Rhamphidoiulus)
       19. Genus Anoploiulus Verhoeff, 1894 accepted as Brachyiulus Berlese, 1884 (junior subjective synonym)
       20. Genus Brachiulus Berlese, 1886 accepted as Brachyiulus Berlese, 1884 (junior objective synonym)
       21. Genus Campodes C. L. Koch, 1847 accepted as Cleidogona Cook & Collins, 1895 (misidentification sensu Bollman, 1893; nec Koch, 1847)
       22. Genus Cerabrachyiulus Verhoeff, 1901 accepted as Cyphobrachyiulus (Cerabrachyiulus) Verhoeff, 1901 (downgraded to subgenus)
       23. Genus Chromatojulus Verhoeff, 1894 accepted as Chromatoiulus Verhoeff, 1894 (unjustified emendation)
       24. Genus Diaxylus Attems, 1940 accepted as Cyphobrachyiulus (Diaxylus) Attems, 1940 (downgraded to subgenus)
       25. Genus Dittozus Attems, 1940 accepted as Pontobrachyiulus Lohmander, 1939 (junior objective synonym)
       26. Genus Donbrachyiulus Lohmander, 1936 accepted as Byzantorhopalum Verhoeff, 1930
       27. Genus Fusiulus Attems, 1909 accepted as Anaulaciulus Pocock, 1895 (junior subjective synonym)
       28. Genus Italoiulus Verhoeff, 1932 accepted as Italoiulus Attems, 1940 (unavailable: invalidly proposed without a type species)
       29. Genus Pachybrachyiulus Verhoeff, 1898 accepted as Chromatoiulus Verhoeff, 1894 (junior objective synonym)
       30. Genus Persebrachyiulus Golovatch, 1983 accepted as Syriobrachyiulus Verhoeff, 1930
       31. Genus Phauloiulus Attems, 1940 accepted as Byzantorhopalum Verhoeff, 1930
       32. Genus Rhamphidoiulus Attems, 1905 accepted as Cyphobrachyiulus (Rhamphidoiulus) Attems, 1905 (downgraded to subgenus)
       33. Genus Anaulaciulus Pocock, 1895 (uncertain, uncertain generic position within Brachyiulini)
       34. Genus Armeniobrachyiulus Lohmander, 1936 (uncertain)
       35. Genus Balkanophoenix Verhoeff, 1937 (uncertain)
       36. Genus Mammamia Akkari, Stoev & Enghoff, 2011 (uncertain)
    3. Tribe Cylindroiulini Verhoeff, 1930
       1. Genus Aegatoiulus Strasser, 1969
       2. Genus Allotyphloiulus Verhoeff, 1905
       3. Genus Alpicylindrus Verhoeff, 1930
       4. Genus Aneuloboiulus Verhoeff, 1899
       5. Genus Apenninicylindrus Verhoeff, 1941
       6. Genus Brachymesius Attems, 1927
       7. Genus Carnioiulus Verhoeff, 1930
       8. Genus Castaneoiulus Verhoeff, 1930
       9. Genus Caucasoiulus Verhoeff, 1930
       10. Genus Chaetoleptophyllum Verhoeff, 1898
       11. Genus Crenatoiulus Attems, 1927
       12. Genus Enantiulus Attems, 1894
       13. Genus Kryphioiulus Read, 1990
       14. Genus Olistheroiulus Lohmander, 1936
       15. Genus Ormeoiulus Verhoeff, 1930
       16. Genus Phallaioiulus Attems, 1927
       17. Genus Phalloiulus Brölemann, 1897
       18. Genus Plagioncus Attems, 1952
       19. Genus Prosthekiulus Attems, 1927
       20. Genus Solaenoiulus Schubart, 1932
       21. Genus Styrioiulus Verhoeff, 1928
       22. Genus Allaiulus C. L. Koch, 1847 accepted as Allajulus C. L. Koch, 1847 (lapsus calami)
       23. Genus Aneulobiulus Attems, 1927 accepted as Aneuloboiulus Verhoeff, 1899 (an orthographic variation, first published by Attems (1927))
       24. Genus Bracheioiulus Verhoeff, 1930 accepted as Brachymesius Attems, 1927 (junior subjective synonym)
       25. Genus Bracheoiulus Verhoeff, 1930 accepted as Bracheioiulus Verhoeff, 1930 accepted as Brachymesius Attems, 1927
       26. Genus Dendroiulus Verhoeff, 1930 accepted as Cylindroiulus Verhoeff, 1894
       27. Genus Ischiolobus Attems, 1951 accepted as Tachypodoiulus Verhoeff, 1893 (junior subjective synonym)
       28. Genus Leptophyllum Verhoeff, 1895 accepted as Enantiulus Attems, 1894 (junior objective synonym; possibly preoccupied)
       29. Genus Leucoiulus Verhoeff, 1894 accepted as Cylindroiulus Verhoeff, 1894 (junior subjective synonym)
       30. Genus Metaleptophyllum Schubart, 1957 accepted as Enantiulus Attems, 1894 (junior objective synonym)
       31. Genus Micromastigoiulus Verhoeff, 1899 accepted as Cylindroiulus Verhoeff, 1894
       32. Genus Neottiulus Loomis, 1972 accepted as Aneuloboiulus Verhoeff, 1899 (junior subjective synonym)
       33. Genus Orocylindrus Verhoeff, 1930 accepted as Cylindroiulus Verhoeff, 1894 (junior objective synonym)
       34. Genus Phyllommatoiulus Ceuca, 1974 accepted as Tachypodoiulus Verhoeff, 1893 (junior subjective synonym)
       35. Genus Ypsiloniulus Verhoeff, 1899 accepted as Allajulus C. L. Koch, 1847 (junior subjective synonym)
    4. Tribe Julini Leach, 1814
       1. Genus Euxinoiulus Lohmander, 1936
       2. Genus Haplophyllum Verhoeff, 1897
       3. Genus Haplopodoiulus Verhoeff, 1898
       4. Genus Hungaroiulus Lohmander, 1936
       5. Genus Julus Linnaeus, 1758
       6. Genus Orescioiulus Lohmander, 1936
       7. Genus Ornithoeides Verhoeff, 1941
       8. Genus Pachypodoiulus Verhoeff, 1897
       9. Genus Parastenophyllum Verhoeff, 1899
       10. Genus Porrhoiulus Lohmander, 1936
       11. Genus Rumaniulus Attems, 1926
       12. Genus Stenophyllum Verhoeff, 1897
       13. Genus Mastigoiulus Attems, 1894 accepted as Julus Linnaeus, 1758 (junior objective synonym)
       14. Genus Micropodoiulus Verhoeff, 1893 accepted as Julus Linnaeus, 1758 (junior subjective synonym)
       15. Genus Raulinsia Leach, 1814 accepted as Julus Linnaeus, 1758 (junior subjective synonym)
    5. Tribe Leptoiulini Lohmander, 1936
       1. Genus Acrovelatus Attems, 1927
       2. Genus Allopodoiulus Verhoeff, 1898
       3. Genus Cannoniulus Verhoeff, 1929
       4. Genus Ethmoiulus Verhoeff, 1943
       5. Genus Femoriferus Attems, 1904
       6. Genus Heloiulus Verhoeff, 1932
       7. Genus Hypsoiulus Verhoeff, 1913
       8. Genus Iberogallus Attems, 1927
       9. Genus Kolpophylacum Attems, 1927
       10. Genus Kubaniulus Lohmander, 1936
       11. Genus Lamelloiulus Verhoeff, 1926
       12. Genus Leptoiulus Verhoeff, 1894
       13. Genus Macedoiulus Verhoeff, 1932
       14. Genus Mesomicroiulus Verhoeff, 1929
       15. Genus Ophyiulus Berlese, 1884
       16. Genus Oroiulus Verhoeff, 1926
       17. Genus Parviiulus Jawlowski, 1929
       18. Genus Peltopodoiulus Lohmander, 1933
       19. Genus Proleptoiulus Verhoeff, 1929
       20. Genus Xestoiulus Verhoeff, 1893
       21. Genus Microiulus Verhoeff, 1897 accepted as Xestoiulus Verhoeff, 1893 (junior subjective synonym)
       22. Genus Ophiiulus Berlese, 1884 accepted as Ophiulus Berlese, 1886 accepted as Ophyiulus Berlese, 1884 (illegitime emendation)
       23. Genus Ophiulus Berlese, 1886 accepted as Ophyiulus Berlese, 1884 (junior objective synonym)
       24. Genus Phylacodon Attems, 1927 accepted as Leptoiulus Verhoeff, 1894 (junior subjective synonym)
       25. Genus Taueriulus Verhoeff, 1913 accepted as Ophyiulus Berlese, 1884 (unaccepted > junior subjective synonym)
    6. Tribe Metaiulini Blower, 1958
       1. Genus Metaiulus Blower & Rolfe, 1956
    7. Tribe Oncoiulini Verhoeff, 1909
       1. Genus Chaitoiulus Verhoeff, 1895
       2. Genus Unciger Brandt, 1841
       3. Genus Chaetoiulus Verhoeff, 1895 accepted as Chaitoiulus Verhoeff, 1895 (lapsus calami)
       4. Genus Oncoiulus Verhoeff, 1894 accepted as Unciger Brandt, 1841 (junior objective synonym)
    8. Tribe Pachybrachyiulini Lohmander, 1936
    9. Tribe Pachyiulini Verhoeff, 1899
    10. Genus Pacifiiulus Mikhaljova, 1982
    11. Tribe Schizophyllini Verhoeff, 1909
        1. Genus Atopocystis Attems, 1951 accepted as Ommatoiulus Latzel, 1884
    12. Genus Sibiriulus Gulička, 1963
    13. Tribe Typhloiulini Verhoeff, 1930
        1. Genus Buchneria Verhoeff, 1941
        2. Genus Inversotyphlus Strasser, 1962
        3. Genus Leptotyphloiulus Verhoeff, 1899
        4. Genus Serboiulus Strasser, 1962
        5. Genus Stygiiulus Verhoeff, 1929
        6. Genus Trogloiulus Manfredi, 1931
        7. Genus Typhloiulus Latzel, 1884
        8. Genus Alpityphlus Strasser, 1967 accepted as Stygiiulus Verhoeff, 1929 (unaccepted > junior subjective synonym)
        9. Genus Attemsotyphlus Strasser, 1962 accepted as Inversotyphlus Strasser, 1962
        10. Genus Balkaniulus Gulička, 1967 accepted as Serboiulus Strasser, 1962
        11. Genus Haploprotopus Verhoeff, 1899 accepted as Typhloiulus Latzel, 1884
        12. Genus Smeringolophus Attems, 1959 accepted as Typhloiulus Latzel, 1884 (junior subjective synonym)
        13. Genus Spelaeoblaniulus Ceuca, 1956 accepted as Typhloiulus Latzel, 1884
        14. Genus Spelaeoiulus Strasser, 1962 accepted as Typhloiulus Latzel, 1884 (junior subjective synonym)
        15. Genus Xestotyphloiulus Verhoeff, 1899 accepted as Typhloiulus Latzel, 1884 (junior subjective synonym)
    14. Tribe Leptophyllini Verhoeff, 1930 accepted as Cylindroiulini Verhoeff, 1930 (unaccepted > junior subjective synonym)
    15. Tribe Ommatoiulini Hoffman, 1980 accepted as Schizophyllini Verhoeff, 1909
        1. Genus Apareiulus Brölemann, 1897
        2. Genus Bothroiulus Verhoeff, 1894
        3. Genus Cherifiulus Schubart, 1964
        4. Genus Elaphophyllum Verhoeff, 1921
        5. Genus Eleutheroiulus Verhoeff, 1894
        6. Genus Harpagophyllum Schubart, 1964
        7. Genus Hemipodoiulus Verhoeff, 1892
        8. Genus Kabylinum Attems, 1952
        9. Genus Maghrebiulus Schubart, 1964
        10. Genus Megaschizophyllum Verhoeff, 1910
        11. Genus Ommatoiulus Latzel, 1884
        12. Genus Osellommatoiulus Ceuca, 1974
        13. Genus Rossiulus Attems, 1926
        14. Genus Schistocoxitus Attems, 1927
        15. Genus Solaenophyllum Verhoeff, 1910
        16. Genus Tachypodoiulus Verhoeff, 1893
        17. Genus Thrinaciulus Attems, 1952
        18. Genus Thylophorus Attems, 1952
        19. Genus Velophyllum Schubart, 1964
        20. Genus Archiulus Berlese, 1886 accepted as Ommatoiulus Latzel, 1884 (junior objective synonym and preoccupied by Archiulus Scudder, 1868, fossil Myriopoda)
        21. Genus Kabylinium Attems, 1952 accepted as Kabylinum Attems, 1952 (misspelled by Hoffman (1980))
        22. Genus Mesoiulus Verhoeff, 1893 accepted as Ommatoiulus Latzel, 1884 (junior objective synonym and preoccupied by Mesoiulus Berlese, 1886, Diplopoda)
        23. Genus Palaioiulus Verhoeff, 1894 accepted as Ommatoiulus Latzel, 1884 (junior objective synonym)
        24. Genus Sarmatiulus Lohmander, 1927 accepted as Rossiulus Attems, 1926 (junior subjective synonym)
        25. Genus Schizophyllum Verhoeff, 1895 accepted as Ommatoiulus Latzel, 1884 (junior objective synonym)
19. Subfamily Leptoiulinae Lohmander, 1936
20. Subfamily Oncoiulinae Verhoeff, 1909
    1. Tribe Archileucogeorgiini Lohmander, 1936
    2. Tribe Leucogeorgiini Verhoeff, 1930
       1. Genus Heteroiulus Verhoeff, 1897
       2. Genus Lamellotyphlus Tabacaru, 1976
       3. Genus Leucogeorgia Verhoeff, 1930
       4. Genus Martvilia Antić & Reip, 2020
       5. Genus Nepalmatoiulus Mauriès, 1983
       6. Genus Paratyphloiulus Mauriès, 1983
       7. Genus Syniulus Strasser, 1974
       8. Genus Telsonius Strasser, 1976
       9. Genus Archileucogeorgia Lohmander, 1936 accepted as Leucogeorgia Verhoeff, 1930
       10. Genus Paratyphloiulus Ceuca, 1971 accepted as Paratyphloiulus Mauriès, 1983 (proposed without type species)
21. Subfamily Pachyiulinae Verhoeff, 1899
    1. Genus Acanthoiulus Verhoeff, 1894
    2. Genus Afropachyiulus Schubart, 1960
    3. Genus Anagaiulus Enghoff, 1992
    4. Genus Apfelbeckiella Verhoeff, 1901
    5. Tribe Apfelbeckiellini Verhoeff, 1909
    6. Genus Caspiopachyiulus Lohmander, 1932
    7. Genus Chersoiulus Strasser, 1938
    8. Genus Cypriopachyiulus Strasser, 1967
    9. Genus Dangaraiulus Golovatch, 1979
    10. Genus Elbaiulus Verhoeff, 1930
    11. Genus Geopachyiulus Verhoeff, 1899
    12. Genus Heteropachyiulus Lohmander, 1936
    13. Genus Iudaeoiulus Verhoeff, 1930
    14. Genus Japanioiulus Verhoeff, 1937
    15. Genus Japanopachyiulus Miyosi, 1957
    16. Genus Karadenizia Antić, 2023
    17. Genus Mesoiulus Berlese, 1886
    18. Genus Mikropachyiulus auct. (Verhoeff, 1898)
    19. Genus Nanopachyiulus Attems, 1902
    20. Genus Pachyiulus Berlese, 1883
    21. Genus Parapachyiulus Golovatch, 1979
    22. Genus Promeritoconus Verhoeff, 1943
    23. Genus Rhodopiella Strasser, 1966
    24. Genus Turboiulus Golovatch, 1979
    25. Genus Baskoiulus Verhoeff, 1938 accepted as Mesoiulus Verhoeff, 1893 accepted as Ommatoiulus Latzel, 1884
    26. Genus Bulgaroiulus Verhoeff, 1928 accepted as Apfelbeckiella Verhoeff, 1901 (junior subjective synonym)
    27. Genus Dolichiulus Verhoeff, 1900 accepted as Dolichoiulus Verhoeff, 1900 (lapsus calami)
    28. Genus Japanoiulus Verhoeff, 1937 accepted as Japanioiulus Verhoeff, 1937 (misspelled by Hoffman (1980))
    29. Genus Japonopachyiulus Miyosi, 1957 accepted as Japanopachyiulus Miyosi, 1957 (lapsus calami)
    30. Genus Kaloiulus Attems, 1940 accepted as Pachyiulus Berlese, 1883 (unavailable: invalidly proposed without a type species)
    31. Genus Megaiulus Verhoeff, 1894 accepted as Pachyiulus Berlese, 1883 (junior subjective synonym)
    32. Genus Mesopachyiulus Attems, 1902 accepted as Mesoiulus Verhoeff, 1893 accepted as Ommatoiulus Latzel, 1884 (junior subjective synonym)
    33. Genus Microbrachyiulus Verhoeff, 1897 accepted as Brachyiulus Berlese, 1884 (junior subjective synonym)
    34. Genus Nesopachyiulus Attems, 1902 accepted as Hyleoglomeris Verhoeff, 1910 (junior subjective synonym)
    35. Genus Oxyiulus Verhoeff, 1896 accepted as Pachyiulus Berlese, 1883 (junior objective synonym of Acanthoiulus Verhoeff, 1894)
    36. Genus Oxyiulus Silvestri, 1896 accepted as Acanthoiulus Verhoeff, 1894 (preoccupied by Oxyiulus Verhoeff, 1896, Diplopoda)
    37. Genus Pachiulus Berlese, 1886 accepted as Pachyiulus Berlese, 1883 (junior objective synonym)
    38. Genus Trichopachyiulus Verhoeff, 1910 accepted as Dolichoiulus Verhoeff, 1900 (junior objective synonym)
    39. Genus Typhlopachyiulus Verhoeff, 1898 accepted as Mesoiulus Verhoeff, 1893 accepted as Ommatoiulus Latzel, 1884 (junior subjective synonym)
22. Subfamily Paectophyllinae Verhoeff, 1900
    1. Tribe Calyptophyllini
       1. Genus Turkoiulus Verhoeff, 1941
    2. Tribe Catamicrophyllini Verhoeff, 1900
       1. Genus Catamicrophyllum Verhoeff, 1900
       2. Genus Catamicrophyllon Verhoeff, 1900 accepted as Catamicrophyllum Verhoeff, 1900 (lapsus calami)
    3. Tribe Paectophyllini Verhoeff, 1900
       1. Genus Anuroleptophyllum Attems, 1901
       2. Genus Macheiroiulus Verhoeff, 1901
       3. Genus Paectophyllum Verhoeff, 1898
    4. Tribe Symphyoiulini Verhoeff, 1909
       1. Genus Mesomeritius Enghoff, 1990
       2. Genus Symphyoiulus Verhoeff, 1898
23. Subfamily Pteridoiulinae Verhoeff, 1913
    1. Genus Pteridoiulus Verhoeff, 1913
24. Genus Rhodopotyphlus Vagalinski, 2021
25. Genus Syrioiulus Verhoeff, 1914
26. Genus Diploiulus Berlese, 1883 accepted as Pachyiulus Berlese, 1883 (junior subjective synonym)
27. Genus Heteroporiulus Silvestri, 1897 accepted as Heteroiulus Verhoeff, 1897
28. Genus Iulus auct. accepted as Julus Linnaeus, 1758 (unaccepted > misspelling - incorrect subsequent spelling)
29. Subfamily Uncigerinae Lohmander, 1936 accepted as Oncoiulinae Verhoeff, 1909 (unaccepted > junior subjective synonym)
    1. Tribe Uncigerini Lohmander, 1936 accepted as Oncoiulini Verhoeff, 1909 (unaccepted > junior objective synonym)
30. Genus Mesoporoiulus Verhoeff, 1905 (uncertain)

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