MilliBase
Between brackets is the number of accepted extant species
Click on "-" to collapse/hide all child taxa
Shows the number of accepted extant species within the taxon
The last expanded taxon is highlighted
Click on "+" to expand/show all child taxa
Click to see the taxon details page
- Myriapoda (13 583)
- Class Chilopoda (6)
- Class Diplopoda (12 940)
- Subclass Chilognatha (12 779)
- Infraclass Helminthomorpha (11 992)
- Subterclass Colobognatha (298)
- Subterclass Eugnatha (11 693)
- Superorder Juliformia (4 368)
- Order Julida (1 359)
- Superfamily Blaniuloidea C. L. Koch, 1847 (84)
- Superfamily Juloidea Leach, 1814 (1 079)
- Family Julidae Leach, 1814 (1 072)
- Subfamily Archiulinae Attems, 1926
- Subfamily Buchneriinae Verhoeff, 1941
- Subfamily Calyptophyllinae Verhoeff, 1930
- Subfamily Campodinae Bollman, 1893
- Subfamily Cylindroiulinae Verhoeff, 1930
- Subfamily Deuteroiulinae Verhoeff, 1896
- Subfamily Heteroiulinae Verhoeff, 1930
- Subfamily Julinae Leach, 1814 (616)
- Subfamily Leptoiulinae Lohmander, 1936
- Subfamily Oncoiulinae Verhoeff, 1909 (105)
- Subfamily Pachyiulinae Verhoeff, 1899 (65)
- Subfamily Paectophyllinae Verhoeff, 1900 (20)
- Subfamily Pteridoiulinae Verhoeff, 1913 (1)
- Subfamily Uncigerinae Lohmander, 1936 accepted as Oncoiulinae Verhoeff, 1909
- Genus Allajulus C. L. Koch, 1847 (7)
- Genus Amblyiulus Silvestri, 1896 (17)
- Genus Armeniophyllum Lohmander, 1932 (1)
- Genus Brachyiulus Berlese, 1884 (8)
- Genus Calyptophyllum Brölemann, 1922 (10)
- Genus Cryptoiulus Verhoeff, 1894 (1)
- Genus Cylindroiulus Verhoeff, 1894 (141)
- Genus Diploiulus Berlese, 1883 accepted as Pachyiulus Berlese, 1883
- Genus Dolichoiulus Verhoeff, 1900 (64)
- Genus Heteroporiulus Silvestri, 1897 accepted as Heteroiulus Verhoeff, 1897
- Genus Hylopachyiulus Attems, 1904 (3)
- Genus Interleptoiulus Mršić, 1988 (1)
- Genus Iulus auct. accepted as Julus Linnaeus, 1758
- Species Iulus affinis Lucas, 1846 accepted as Julus affinis (Lucas, 1846)
- Species Iulus africanus Brölemann, 1897 accepted as Cylindroiulus truncorum (Silvestri, 1896)
- Species Iulus albipes C. L. Koch, 1838 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Iulus albolineatum Lucas, 1845 accepted as Ommatoiulus albolineatus (Lucas, 1845)
- Species Iulus albolineatus Lucas, 1845 accepted as Ommatoiulus albolineatus (Lucas, 1845)
- Species Iulus albovittatus Verhoeff, 1894 accepted as Leptoiulus belgicus (Latzel, 1884)
- Species Iulus alemannicus (Verhoeff, 1892) accepted as Leptoiulus alemannicus (Verhoeff, 1892)
- Species Iulus algerinus Brölemann, 1898 accepted as Cylindroiulus algerinus (Brölemann, 1898)
- Species Iulus allobrogicus Brölemann, 1896 accepted as Cylindroiulus broti (Humbert, 1893)
- Species Iulus alpivagus Verhoeff, 1897 accepted as Hypsoiulus alpivagus (Verhoeff, 1897)
- Species Iulus americanus Palisot de Beauvouis, 1817 accepted as Narceus americanus (Palisot de Beauvouis, 1817)
- Species Iulus apenninorum Brölemann, 1897 accepted as Cylindroiulus apenninorum Brölemann, 1897
- Species Iulus atticus Karsch, 1888 accepted as Julus atticus (Karsch, 1888)
- Species Iulus austriacus Latzel, 1884 accepted as Megaphyllum (Megaphyllum) austriacum (Latzel, 1884)
- Species Iulus barroisi Porat, 1893 accepted as Amblyiulus barroisi (Porat, 1893)
- Species Iulus beauvoisi Gervais, 1847 accepted as Nesobolus beauvoisi (Gervais, 1847)
- Species Iulus beauvoisii Gervais, 1847 accepted as Julus beauvoisii Gervais, 1847
- Species Iulus belgicus Latzel, 1884 accepted as Leptoiulus belgicus (Latzel, 1884)
- Species Iulus bellus Lignau, 1903 accepted as Cylindroiulus bellus (Lignau, 1903)
- Species Iulus bertkaui Verhoeff, 1896 accepted as Leptoiulus bertkaui (Verhoeff, 1896)
- Species Iulus bicuspidatus Brandt, 1841 accepted as Julus bicuspidatus Brandt, 1840
- Species Iulus bilineatus C. L. Koch, 1838 accepted as Ommatoiulus sabulosus (Linnaeus, 1758)
- Species Iulus bioculatus Gervais & Goudot, 1844 accepted as Stemmiulus bioculatus (Gervais & Goudot, 1844)
- Species Iulus bipulvillatus Gervais, 1847 accepted as Remulopygus javanicus (Brandt, 1841)
- Species Iulus bjelasnicensis Verhoeff, 1898 accepted as Xestoiulus bjelasnicensis (Verhoeff, 1898)
- Species Iulus blainvillii Le Guillou, 1841 accepted as Trigoniulus blainvillii (Le Guillou, 1841)
- Species Iulus blaniuloides Verhoeff, 1893 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Iulus boleti C. L. Koch, 1847 accepted as Cylindroiulus boleti (C. L. Koch, 1847)
- Species Iulus bottae Gervais, 1837 accepted as Julus botta Gervais, 1837
- Species Iulus bouvieri Brölemann, 1896 accepted as Cylindroiulus parisiorum (Brölemann & Verhoeff, 1896)
- Species Iulus braueri Verhoeff, 1895 accepted as Leptoiulus montivagus (Latzel, 1884)
- Species Iulus britannicus Verhoeff, 1891 accepted as Cylindroiulus britannicus (Verhoeff, 1891)
- Species Iulus broti Humbert, 1893 accepted as Cylindroiulus broti (Humbert, 1893)
- Species Iulus bungii (Brandt, 1833) accepted as Spirobolus bungii Brandt, 1833
- Species Iulus burkei Bollman, 1887 accepted as Nannolene burkei (Bollman, 1887)
- Species Iulus caeruleocinctus Wood, 1864 accepted as Cylindroiulus caeruleocinctus (Wood, 1864)
- Species Iulus caesius Wood, 1867 accepted as Julus caesius (Wood, 1867)
- Species Iulus canaliculatus Wood, 1864 accepted as Julus canaliculatus (Wood, 1864)
- Species Iulus canariensis Pocock, 1893 accepted as Julus canariensis (Pocock, 1893)
- Species Iulus cantoni Brölemann, 1892 accepted as Cylindroiulus cantonii Brölemann, 1892
- Species Iulus cantonii Brölemann, 1892 accepted as Cylindroiulus cantonii Brölemann, 1892
- Species Iulus carnifex Fabricius, 1775 accepted as Xenobolus carnifex (Fabricius, 1775)
- Species Iulus carpathicus Verhoeff, 1907 accepted as Xestoiulus carpathicus (Verhoeff, 1907)
- Species Iulus cattarensis Latzel, 1884 accepted as Pachyiulus cattarensis (Latzel, 1884)
- Species Iulus chalandei Ribaut, 1904 accepted as Cylindroiulus chalandei (Ribaut, 1904)
- Species Iulus chilensis Gervais, 1847 accepted as Autostreptus chilensis (Gervais, 1847)
- Species Iulus chilopogon Latzel, 1884 accepted as Ophyiulus chilopogon (Latzel, 1884)
- Species Iulus cibdellus Chamberlin, 1921 accepted as Leptoiulus cibdellus (Chamberlin, 1921)
- Species Iulus ciliatus Verhoeff, 1897 accepted as Leptoiulus trilobatus Verhoeff, 1894
- Species Iulus cinerefrons Wood, 1864 accepted as Julus cinerefrons (Wood, 1864)
- Species Iulus coerulans Nĕmec, 1896 accepted as Kryphioiulus occultus (C. L. Koch, 1847)
- Species Iulus colchicus Lohmander, 1936 accepted as Euxinoiulus colchicus (Lohmander, 1936)
- Species Iulus corallinus Eydoux & Souleyet, 1842 accepted as Trigoniulus corallinus (Eydoux & Souleyet, 1842)
- Species Iulus cornutus Voges, 1878 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Iulus corticalis Lucas, 1846 accepted as Julus corticalis (Lucas, 1846)
- Species Iulus costulatus Motschoulsky, 1851
- Species Iulus dalmaticus C. L. Koch, 1847 accepted as Acanthoiulus fuscipes (C. L. Koch, 1847)
- Species Iulus decipiens Berlese, 1886 accepted as Cylindroiulus decipiens (Berlese, 1895)
- Species Iulus densestriatus Verhoeff, 1891 accepted as Enantiulus nanus (Latzel, 1884)
- Species Iulus dentatus Olivier, 1792 accepted as Stenonia dentata (Olivier, 1792)
- Species Iulus deubeli Verhoeff, 1897 accepted as Leptoiulus deubeli (Verhoeff, 1897)
- Species Iulus dicentrus Latzel, 1884 accepted as Allajulus dicentrus (Latzel, 1884)
- Species Iulus distinctus Lucas, 1846 accepted as Cylindroiulus distinctus (Lucas, 1846)
- Species Iulus diversifrons Wood, 1867 accepted as Aniulus (Hakiulus) diversifrons diversifrons (Wood, 1867)
- Species Iulus dorsovittatus Verhoeff, 1893 accepted as Ommatoiulus dorsovittatus (Verhoeff, 1893)
- Species Iulus ellipticus Bollman, 1887
- Species Iulus eurypus Attems, 1894 accepted as Pachypodoiulus eurypus (Attems, 1894)
- Species Iulus eydouxii Gervais, 1847 accepted as Apeuthes eydouxii (Gervais, 1847)
- Species Iulus fallax Meinert, 1868 accepted as Ophyiulus pilosus (Newport, 1843)
- Species Iulus fasciatus C. L. Koch, 1838 accepted as Megaphyllum (Megaphyllum) austriacum (Latzel, 1884)
- Species Iulus ferrugineus C. L. Koch, 1838 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Iulus fijiensis Colenso, 1893 accepted as Spirostreptus fijiensis (Colenso, 1893)
- Species Iulus fimbriatus Attems, 1904 accepted as Xestoiulus fimbriatus (Attems, 1904)
- Species Iulus flavipes C. L. Koch, 1847 accepted as Pachyiulus flavipes (C. L. Koch, 1847)
- Species Iulus flavotaeniatus Brandt, 1841 accepted as Julus flavotaeniatus Brandt, 1841
- Species Iulus foetidissimus Muralewitz, 1907 accepted as Pachyiulus krivolutskyi Golovatch, 1977
- Species Iulus foetidissimus Savi, 1819 accepted as Callipus foetidissimus (Savi, 1819)
- Species Iulus foetidus C. L. Koch, 1838 accepted as Unciger foetidus (C. L. Koch, 1838)
- Species Iulus fontisherculis Verhoeff, 1899 accepted as Xestoiulus fontisherculis (Verhoeff, 1899)
- Species Iulus frisioides Verhoeff, 1892 accepted as Cylindroiulus britannicus (Verhoeff, 1891)
- Species Iulus frisius Verhoeff, 1891 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Iulus frivaldszkyi Daday, 1889 accepted as Megaphyllum (Megaphyllum) unilineatum (C. L. Koch, 1838)
- Species Iulus frondicola Verhoeff, 1899 accepted as Parastenophyllum frondicola (Verhoeff, 1899)
- Species Iulus fulviceps (Latzel, 1884) accepted as Cylindroiulus fulviceps (Latzel, 1884)
- Species Iulus furcifer Harger, 1872 accepted as Bollmaniulus furcifer (Harger, 1872)
- Species Iulus fuscipes C. L. Koch, 1847 accepted as Acanthoiulus fuscipes (C. L. Koch, 1847)
- Species Iulus fuscounilineatum Lucas, 1846 accepted as Schizophyllum fusco-unilineatum (Lucas, 1846)
- Species Iulus fuscounilineatus Lucas, 1846 accepted as Schizophyllum fusco-unilineatum (Lucas, 1846)
- Species Iulus ganglbaueri Verhoeff, 1898 accepted as Typhloiulus ganglbaueri (Verhoeff, 1898)
- Species Iulus garumnicus Ribaut, 1904 accepted as Iberogallus garumnicus (Ribaut, 1904)
- Species Iulus gaudichaudi Gervais, 1847 accepted as Rhinocricus gaudichaudi (Gervais, 1847)
- Species Iulus germanicus Verhoeff, 1896 accepted as Leptoiulus germanicus (Verhoeff, 1896)
- Species Iulus gracilicornis Brandt, 1841 accepted as Julus gracilicornis Brandt, 1840
- Species Iulus gracilis Rothenbühler, 1899 accepted as Leptoiulus belgicus (Latzel, 1884)
- Species Iulus graciliventris Verhoeff, 1898 accepted as Xestoiulus graciliventris (Verhoeff, 1898)
- Species Iulus granulatus Gervais, 1847 accepted as Glyphiulus granulatus (Gervais, 1847)
- Species Iulus groedensis Attems, 1899 accepted as Allajulus groedensis (Attems, 1899)
- Species Iulus guttulatus Bosc, 1792 accepted as Blaniulus guttulatus (Bosc, 1792)
- Species Iulus helveticus Verhoeff, 1894 accepted as Leptoiulus helveticus (Verhoeff, 1894)
- Species Iulus hesperus Chamberlin, 1914 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Iulus holdhausi Attems, 1908 accepted as Ophyiulus chilopogon (Latzel, 1884)
- Species Iulus hortensis Wood, 1864 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Iulus horvathi Verhoeff, 1897 accepted as Cylindroiulus horvathi (Verhoeff, 1897)
- Species Iulus hungaricus Karsch, 1881 accepted as Pachyiulus hungaricus (Karsch, 1881)
- Species Iulus idriensis C. L. Koch, 1847 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Iulus imbecillus Latzel, 1884 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Iulus immaculatus Wood, 1864 accepted as Parajulus immaculatus (Wood, 1864)
- Species Iulus impartitus Karsch, 1888 accepted as Symphyoiulus impartitus (Karsch, 1888)
- Species Iulus indus Linnaeus, 1758 sensu Beauvois, 1817 accepted as Nesobolus loomisi Hoffman, 1998
- Species Iulus insularum Desjardins, 1835 accepted as Rubanostreptus seychellarum (Desjardins, 1835)
- Species Iulus italicus Latzel, 1884 accepted as Cryptoiulus italicus (Latzel, 1884)
- Species Iulus javanicus Brandt, 1841 accepted as Remulopygus javanicus (Brandt, 1841)
- Species Iulus juvenilis Ribaut, 1907 accepted as Leptoiulus juvenilis (Ribaut, 1907)
- Species Iulus karschi Verhoeff, 1892 accepted as Ommatoiulus moreleti (Lucas, 1860)
- Species Iulus kervillei Brölemann, 1897 accepted as Leptoiulus kervillei (Brölemann, 1897)
- Species Iulus kochii Gervais, 1847 accepted as Nopoiulus kochii (Gervais, 1847)
- Species Iulus kollarii Brandt, 1841 accepted as Odontopyge kollarii (Brandt, 1841)
- Species Iulus kraepelinorum Latzel, 1895 accepted as Dolichoiulus kraepelinorum (Latzel, 1895)
- Species Iulus kubanus Verhoeff, 1920 accepted as Porrhoiulus kubanus (Verhoeff, 1920)
- Species Iulus laetedorsalis Verhoeff, 1898 accepted as Leptoiulus laetedorsalis (Verhoeff, 1898)
- Species Iulus laeticollis Porat, 1889 accepted as Xestoiulus laeticollis (Porat, 1889)
- Species Iulus lagurus (Linnaeus, 1758) accepted as Polyxenus lagurus (Linnaeus, 1758)
- Species Iulus lapidarium Lucas, 1846 accepted as Ommatoiulus lapidarius (Lucas, 1846)
- Species Iulus lapidarius Lucas, 1846 accepted as Ommatoiulus lapidarius (Lucas, 1846)
- Species Iulus laqueratus Wood, 1864 accepted as Julus laqueratus (Wood, 1864)
- Species Iulus latzeli Belese, 1884 accepted as Cylindroiulus latzeli (Berlese, 1884)
- Species Iulus latzelii Berlese, 1884 accepted as Cylindroiulus latzeli (Berlese, 1884)
- Species Iulus lepidus Porat, 1876 accepted as Julus lepidus (Porat, 1876)
- Species Iulus leprieurii Lucas, 1849 accepted as Julus leprieurii Lucas, 1849
- Species Iulus lignaui Verhoeff, 1910 accepted as Julus lignaui (Verhoeff, 1910)
- Species Iulus lignicola Ribaut, 1904 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Iulus ligulifer Latzel & Verhoeff, 1891 accepted as Julus scandinavius (Latzel, 1884)
- Species Iulus limitaneus Brölemann, 1905 accepted as Cylindroiulus limitaneus (Brölemann, 1905)
- Species Iulus lindholmi Lohmander, 1936 accepted as Orescioiulus lindholmi (Lohmander, 1936)
- Species Iulus lividus Voges, 1878 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Iulus londinensis Leach, 1816 accepted as Cylindroiulus londinensis (Leach, 1816)
- Species Iulus longabo C. L. Koch, 1847 accepted as Ophyiulus pilosus (Newport, 1843)
- Variety Iulus longabo var. exilis Latzel, 1884 accepted as Iulus longabo C. L. Koch, 1847
- Species Iulus lucifugus Gervais, 1836 accepted as Paraspirobolus lucifugus (Gervais, 1836)
- Species Iulus luridus C. L. Koch, 1847 accepted as Cylindroiulus luridus (C. L. Koch, 1847)
- Species Iulus luscus Meinert, 1868 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Iulus luscus Meinert, 1868 sensu Latzel, 1884 accepted as Cylindroiulus parisiorum (Brölemann & Verhoeff, 1896)
- Species Iulus madagascarensis Gervais, 1847 accepted as Spirostreptus madagascarensis (Gervais, 1847)
- Species Iulus malabaricus Gervais, 1847 accepted as Spirostreptus malabaricus (Gervais, 1847)
- Species Iulus margaritatus Fanzago, 1875 accepted as Megaphyllum margaritatum (Fanzago, 1875)
- Species Iulus marmoratus Attems, 1895 accepted as Leptoiulus saltuvagus (Verhoeff, 1898)
- Species Iulus matulici Verhoeff, 1901 accepted as Leptoiulus matulicii (Verhoeff, 1901)
- Species Iulus matulicii Verhoeff, 1901 accepted as Xestoiulus matulicii matulici (Verhoeff, 1901)
- Species Iulus mediterraneum Latzel, 1884 accepted as Schizophyllum mediterraneum (Latzel, 1884)
- Species Iulus mediterraneus Latzel, 1883 accepted as Ommatoiulus rutilans (C. L. Koch, 1847)
- Species Iulus meinerti Verhoeff, 1891 accepted as Cylindroiulus meinerti (Verhoeff, 1891)
- Species Iulus meridionalis Gervais, 1847
- Species Iulus microporus Porat, 1893 accepted as Julus microporus (Porat, 1893)
- Species Iulus milesii Wood, 1864 accepted as Julus milesii (Wood, 1864)
- Species Iulus minutus Porat, 1889 accepted as Leptoiulus cibdellus (Chamberlin, 1921)
- Species Iulus moebiusi Verhoeff, 1897 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Iulus moebiusii Verhoeff, 1897 accepted as Xestoiulus imbecillus (Latzel, 1884)
- Species Iulus molleri Verhoeff, 1892 accepted as Cylindroiulus propinquus (Porat, 1870)
- Species Iulus molybdinus (C. L. Koch, 1847) accepted as Allajulus molybdinus C. L. Koch, 1847
- Species Iulus montivagus Latzel, 1884 accepted as Leptoiulus montivagus (Latzel, 1884)
- Species Iulus moreleti Lucas, 1860 accepted as Schizophyllum moreleti (Lucas, 1860)
- Species Iulus multiannulatus McNeill, 1887
- Species Iulus mystecus De Saussure, 1860 accepted as Messicobolus mystecus (De Saussure, 1860)
- Species Iulus nanum Latzel, 1884 accepted as Metaleptophyllum nanum (Latzel, 1884)
- Species Iulus nanus Latzel, 1884 accepted as Enantiulus nanus (Latzel, 1884)
- Species Iulus napolitanus Attems, 1903 accepted as Leptoiulus napolitanus (Attems, 1903)
- Species Iulus nematodes Latzel, 1884 accepted as Geopachyiulus nematodes (Latzel, 1884)
- Species Iulus nemorensis Menge, 1815 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Iulus niger Leach, 1816 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Iulus nigrofuscus Verhoeff, 1894 accepted as Ophyiulus nigrofuscus (Verhoeff, 1894)
- Species Iulus nitidus Verhoeff, 1891 accepted as Allajulus nitidus (Verhoeff, 1891)
- Species Iulus nivicomes Verhoeff, 1901 accepted as Leptoiulus riparius (Verhoeff, 1894)
- Species Iulus occultus Verhoeff, 1893 accepted as Cylindroiulus perforatus Verhoeff, 1905
- Species Iulus occultus C. L. Koch, 1847 accepted as Kryphioiulus occultus (C. L. Koch, 1847)
- Species Iulus octoformis Voges, 1878 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Iulus oliveirae Verhoeff, 1893 accepted as Julus oliveirae Verhoeff, 1893
- Species Iulus oregonensis Wood, 1864 accepted as Julus oregonensis (Wood, 1864)
- Species Iulus oribates Latzel, 1884 accepted as Leptoiulus oribates (Latzel, 1884)
- Species Iulus owenii Bollman, 1887 accepted as Cylindroiulus latestriatus (Curtis, 1845)
- Species Iulus pallipes Olivier, 1792 accepted as Strongylosoma stigmatosum (Eichwald, 1830)
- Species Iulus palmiger Gervais, 1847 accepted as Narceus americanus (Palisot de Beauvouis, 1817)
- Species Iulus parisiorum Brölemann & Verhoeff, 1896 accepted as Cylindroiulus parisiorum (Brölemann & Verhoeff, 1896)
- Species Iulus parvipes Newport, 1844
- Species Iulus pelidnus Latzel, 1884 accepted as Styrioiulus pelidnus (Latzel, 1884)
- Species Iulus penicillatus DeGeer accepted as Polyxenus lagurus (Linnaeus, 1758)
- Species Iulus pilosiscuta Wood, 1864 accepted as Ptyoiulus impressus (Say, 1821)
- Species Iulus pilosus Newport, 1843 accepted as Ophyiulus pilosus (Newport, 1843)
- Species Iulus placidus Lignau, 1903 accepted as Cylindroiulus placidus (Lignau, 1903)
- Species Iulus platyurus Latzel, 1884 accepted as Omobrachyiulus platyurus (Latzel, 1884)
- Species Iulus podabrus Latzel, 1884 accepted as Chromatoiulus podabrus (Latzel, 1884)
- Species Iulus porati Verhoeff, 1893 accepted as Julus porathi Verhoeff, 1893
- Species Iulus postsquamatus Verhoeff, 1898 accepted as Symphyoiulus postsquamatus (Verhoeff, 1898)
- Species Iulus productus Verhoeff accepted as Megaphyllum (Megaphyllum) projectum projectum Verhoeff, 1894
- Species Iulus profugus Stuxberg, 1876 accepted as Julus profugus (Stuxberg, 1876)
- Species Iulus projectus (Verhoeff, 1894) accepted as Megaphyllum (Megaphyllum) projectum projectum Verhoeff, 1894
- Species Iulus propinquus Porat, 1870 accepted as Micromastigoiulus propinquus (Porat, 1870)
- Species Iulus proximus Nĕmec, 1896 accepted as Leptoiulus proximus (Nĕmec, 1896)
- Species Iulus psilonotus Latzel, 1884 accepted as Typhloiulus psilonotus (Latzel, 1884)
- Species Iulus psilopygus Latzel, 1886 accepted as Cylindroiulus londinensis (Leach, 1816)
- Species Iulus pulchellus (Leach, 1816) accepted as Blaniulus guttulatus (Bosc, 1792)
- Species Iulus punctatus Leach, 1815 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Iulus punctatus C. L. Koch, 1838 accepted as Enantiulus nanus (Latzel, 1884)
- Species Iulus punicus Brölemann, 1894 accepted as Harpagophyllum punicus (Brölemann, 1894)
- Species Iulus pusillus Leach, 1816 accepted as Brachyiulus pusillus (Leach, 1816)
- Species Iulus pustulatus (Fabricius, 1781) accepted as Glomeris pustulata (Fabricius, 1781)
- Species Iulus pyrenaicus Brölemann, 1897 accepted as Julus pyrenaicus (Brölemann, 1897)
- Species Iulus rebeli Attems, 1904 accepted as Xestoiulus rebeli (Attems, 1904)
- Species Iulus relictus Verhoeff, 1893 accepted as Julus relictus (Verhoeff, 1893)
- Species Iulus rimosus Karsch, 1881 accepted as Ommatoiulus rimosus (Karsch, 1881)
- Species Iulus riparius Verhoeff, 1894 accepted as Leptoiulus riparius (Verhoeff, 1894)
- Species Iulus rossicus Timotheew, 1897 accepted as Byzantorhopalum (Byzantorhopalum) rossicum (Timotheew, 1897)
- Species Iulus rubripes C. L. Koch, 1847 accepted as Ommatoiulus sabulosus (Linnaeus, 1758)
- Species Iulus rufifrons C. L. Koch, 1847 accepted as Cylindroiulus rufifrons (C. L. Koch, 1847)
- Species Iulus rutilans C. L. Koch, 1847 accepted as Ommatoiulus rutilans (C. L. Koch, 1847)
- Species Iulus sabulosus Linnaeus, 1758 accepted as Ommatoiulus sabulosus (Linnaeus, 1758)
- Species Iulus sagittarius Brölemann, 1897 accepted as Julus sagittarius (Brölemann, 1897)
- Species Iulus saltuvagus Verhoeff, 1898 accepted as Leptoiulus saltuvagus (Verhoeff, 1898)
- Species Iulus salvagicus Latzel, 1895 accepted as Dolichoiulus salvagicus (Latzel, 1895)
- Species Iulus sarajevensis Verhoeff, 1898 accepted as Leptoiulus sarajevensis (Verhoeff, 1898)
- Species Iulus scandinavius Latzel, 1884 accepted as Micropodoiulus scandinavius (Latzel, 1884)
- Species Iulus scanicus (Lohmander, 1925) accepted as Julus scanicus Lohmander, 1925
- Species Iulus schioedtei Verhoeff, 1898 accepted as Allopodoiulus schioedtei (Verhoeff, 1898)
- Species Iulus schneideri Latzel, 1900 accepted as Cylindroiulus schneideri (Latzel, 1900)
- Species Iulus sechellarum Desjardins, 1835 accepted as Sechelleptus seychellarum (Desjardins, 1835)
- Species Iulus segregatus Brölemann, 1903 accepted as Cylindroiulus segregatus (Brölemann, 1903)
- Species Iulus serajevensis Verhoeff, 1898 accepted as Leptoiulus sarajevensis (Verhoeff, 1898)
- Species Iulus seticaudus Porat, 1876 accepted as Julus seticaudus (Porat, 1876)
- Species Iulus seychellarum Desjardins, 1835 accepted as Sechelleptus seychellarum (Desjardins, 1835)
- Species Iulus silvarum Meinert, 1868 accepted as Cylindroiulus punctatus (Leach, 1816)
- Species Iulus silvicola Brölemann, 1898 accepted as Leptoiulus meridionalis (Brölemann, 1898)
- Species Iulus silvivagus Verhoeff, 1898 accepted as Leptoiulus trilineatus (C. L. Koch, 1847)
- Species Iulus similis C. L. Koch, 1838 accepted as Cylindroiulus luridus (C. L. Koch, 1847)
- Species Iulus sjaelandicus Meinert, 1868 accepted as Megaphyllum (Megaphyllum) sjaelandicum (Meinert, 1868)
- Species Iulus solitarius Pocock, 1893 accepted as Julus solitarius (Pocock, 1893)
- Species Iulus spelandicus Leydig, 1881 accepted as Megaphyllum (Megaphyllum) projectum projectum Verhoeff, 1894
- Species Iulus spinifer Verhoeff, 1895 accepted as Chaitoiulus spinifer (Verhoeff, 1895)
- Species Iulus spinosus Ribaut, 1904 accepted as Prosthekiulus spinosus (Ribaut, 1904)
- Species Iulus stigma Fabricius, 1775 accepted as Polydesmus stigma (Fabricius, 1775)
- Species Iulus striatus Hutton, 1877 accepted as Eumastigonus striatus (Hutton, 1877)
- Species Iulus strictus Latzel, 1884 accepted as Geopachyiulus strictus (Latzel, 1884)
- Species Iulus styricus Verhoeff, 1894 accepted as Styrioiulus styricus (Verhoeff, 1894)
- Species Iulus subalpinus Lohmander, 1936 accepted as Orescioiulus subalpinus (Lohmander, 1936)
- Species Iulus sublaevis Gervais, 1847 accepted as Gymnostreptus sublaevis (Gervais, 1847)
- Species Iulus tanymorphus Attems, 1900 accepted as Leptoiulus tanymorphus (Attems, 1901)
- Species Iulus tepanecus De Saussure, 1860 accepted as Messicobolus tepanecus (De Saussure, 1860)
- Species Iulus terrestris Linnaeus, 1758 accepted as Julus terrestris Linnaeus, 1758
- Species Iulus teutonicus Pocock, 1900 accepted as Bracheioiulus teutonicus (Pocock, 1900)
- Species Iulus tirolensis Verhoeff, 1894 accepted as Cylindroiulus tirolensis (Verhoeff, 1894)
- Species Iulus totanacus De Saussure, 1860 accepted as Anadenobolus totanacus (De Saussure, 1860)
- Species Iulus transversosulcatus Am Stein, 1957 accepted as Tachypodoiulus niger (Leach, 1816)
- Species Iulus trilineatus C. L. Koch, 1847 accepted as Leptoiulus trilineatus (C. L. Koch, 1847)
- Species Iulus trilobatus Verhoeff, 1894 accepted as Leptoiulus trilobatus Verhoeff, 1894
- Species Iulus trimarginatus Gervais, 1847 accepted as Julus trimarginatus (Gervais, 1847)
- Species Iulus tristani Pocock, 1893 accepted as Julus tristani (Pocock, 1893)
- Species Iulus tussilaginis Verhoeff, 1907 accepted as Leptoiulus tussilaginis (Verhoeff, 1907)
- Species Iulus unilineatus C. L. Koch, 1838 accepted as Megaphyllum (Megaphyllum) unilineatum (C. L. Koch, 1838)
- Species Iulus vagabundus Latzel, 1884 accepted as Leptoiulus vagabundus (Latzel, 1884)
- Species Iulus variolosus Silvestri, 1898 accepted as Ommatoiulus variolosus (Silvestri, 1898)
- Species Iulus varius Fabricius, 1781 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Iulus varius Menge, 1851 accepted as Pachyiulus varius (Fabricius, 1781)
- Species Iulus venustus Wood, 1864 accepted as Oriulus venustus (Wood, 1864)
- Species Iulus verhoeffi Brölemann, 1896 accepted as Alpicylindrus verhoeffi (Brölemann, 1896)
- Species Iulus zameniscolor Fanzago, 1880 accepted as Julus zameniscolor (Fanzago, 1880)
- Species Iulus zinalensis Faës, 1902 accepted as Cylindroiulus zinalensis (Faës, 1902)
- Genus Mesoporoiulus Verhoeff, 1905
- Genus Rhodopotyphlus Vagalinski, 2021 (1)
- Genus Syrioiulus Verhoeff, 1914 (11)
- Family Rhopaloiulidae Attems, 1926 (1)
- Family Trichoblaniulidae Verhoeff, 1911 (5)
- Family Trichonemasomatidae Enghoff, 1991 (1)
- Superfamily Nemasomatoidea Bollman, 1893 (29)
- Superfamily Paeromopodoidea Cook, 1895
- Superfamily Paeromopoidea Cook, 1895 (11)
- Superfamily Parajuloidea Bollman, 1893 (156)
- Family Californiulidae Verhoeff, 1938
- Family Isobatidae Cook, 1895 accepted as Nemasomatidae Bollman, 1893
- Family Julida incertae sedis
- Family Leucogeorgiidae Verhoeff, 1930
- Family Nemasomidae Chamberlin & Hoffman, 1958 accepted as Nemasomatidae Bollman, 1893
- Family Pachyiulidae Verhoeff, 1899
- Family Paeromopidae Cook, 1895
- Family Paraiulidae Bollman, 1893
- Family Protoiulidae Verhoeff, 1896
- Family Zosteractiidae Loomis, 1943
- Order Juliformia incertae sedis
- Order Spirobolida (1 172)
- Order Spirostreptida (1 837)
- Superorder Merocheta (5 647)
- Superorder Nematophora (1 676)
- Order Siphoniulida (2)
- Family Hexecontasomatidae Hannibal, 2000 † (1)
- Family Oklahomasomatidae Hannibal & May, 2020 †
- Genus Dolesea Hannibal & May, 2020 †
- Infraclass Pentazonia (786)
- Order Zosterogrammida † (1)
- Subclass Penicillata (161)
- Class Euthycarcinoidea †
- Class Pauropoda (534)
- Class Symphyla (103)
