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DISTRIBUTION
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| Anyphaena accentuata (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Entelecara acuminata (Wider, 1834) | It / Sard | Info | ||
| Micaria aenea Thorell, 1871 | It | Info | ||
| Zelotes aeneus (Simon, 1878) | It | Info | ||
| Heliophanus aeneus (Hahn, 1832) | It / Sic | Info | ||
| Talavera aequipes (O. Pickard-Cambridge, 1871) | It / Sard / Sic | Info | ||
| Tiso aestivus (L. Koch, 1872) | It | Info | ||
| Agyneta affinis (Kulczynski, 1898) | It | Info | ||
| Tapinocyba affinis Lessert, 1907 | It | Info | ||
| Eratigena agrestis (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Tenuiphantes alacris (Blackwall, 1853) | It | Info | ||
| Pardosa alacris (C.L. Koch, 1833) | It | Info | ||
| Philodromus albidus Kulczynski, 1911 | It / Sic | Info | ||
| Aulonia albimana (Walckenaer, 1805) | It / Sard / Sic | Info | ||
| Steatoda albomaculata (De Geer, 1778) | It / Sard / Sic | Info | ||
| Hypsosinga albovittata (Westring, 1851) | It / Sard / Sic | Info | ||
| Araniella alpica (L. Koch, 1869) | It / Sard | Info | ||
| Linyphia alpicola van Helsdingen, 1969 | It | Info | ||
| Arctosa alpigena (Doleschall, 1852) | It | Info | ||
| Diplocephalus alpinus (O. Pickard-Cambridge, 1873) | It | Info | ||
| Bolyphantes alticeps (Sundevall, 1833) | It | Info | ||
| Pardosa amentata (Clerck, 1757) | It | Info | ||
| Araeoncus anguineus (L. Koch, 1869) | It | Info | ||
| Araneus angulatus Clerck, 1757 | It / Sic | Info | ||
| Echemus angustifrons (Westring, 1861) | It / Sic | Info | ||
| Scotinotylus antennatus (O. Pickard-Cambridge, 1875) | It | Info | ||
| Walckenaeria antica (Wider, 1834) | It / Sard | Info | ||
| Sisicus apertus (Holm, 1939) | It | Info | ||
| Micrargus apertus (O. Pickard-Cambridge, 1871) | It | Info | ||
| Ero aphana (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Oedothorax apicatus (Blackwall, 1850) | It | Info | ||
| Bathyphantes approximatus (O. Pickard-Cambridge, 1871) | It | Info | ||
| Zelotes apricorum (L. Koch, 1876) | It / Sic | Info | ||
| Centromerus arcanus (O. Pickard-Cambridge, 1873) | It | Info | ||
| Evarcha arcuata (Clerck, 1757) | It / Sic | Info | ||
| Mansuphantes aridus (Thorell, 1875) | It | Endemic | Info | |
| Mastigusa arietina (Thorell, 1871) | It | Info | ||
| Dictyna arundinacea (Linnaeus, 1758) | It / Sard / Sic | Info | ||
| Robertus arundineti (O. Pickard-Cambridge, 1871) | It / Sard / Sic | Info | ||
| Ozyptila atomaria (Panzer, 1801) | It / Sard / Sic | Info | ||
| Erigone atra Blackwall, 1833 | It | Info | ||
| Xysticus audax (Schrank, 1803) | It / Sard / Sic | Info | ||
| Heliophanus auratus C.L. Koch, 1835 | It / Sard / Sic | Info | ||
| Philodromus aureolus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Nomisia aussereri (L. Koch, 1872) | It / Sard / Sic | Info | ||
| Gnaphosa badia (L. Koch, 1866) | It | Info | ||
| Segestria bavarica C.L. Koch, 1843 | It / Sard / Sic | Info | ||
| Theridion betteni Wiehle, 1960 | It | Info | ||
| Centromerita bicolor (Blackwall, 1833) | It | Info | ||
| Gnaphosa bicolor (Hahn, 1833) | It / Sard | Info | ||
| Pardosa bifasciata (C.L. Koch, 1834) | It | Info | ||
| Xysticus bifasciatus C.L. Koch, 1837 | It / Sard | Info | ||
| Neottiura bimaculata bimaculata (Linnaeus, 1767) | It / Sard / Sic | Info | ||
| Steatoda bipunctata (Linnaeus, 1758) | It / Sic | Info | ||
| Cozyptila blackwalli (Simon, 1875) | It / Sard / Sic | Info | ||
| Pardosa blanda (C.L. Koch, 1833) | It | Info | ||
| Theridion boesenbergi Strand, 1904 | It | Info | ||
| Ceratinella brevipes (Westring, 1851) | It | Info | ||
| Ceratinella brevis (Wider, 1834) | It | Info | ||
| Dicymbium brevisetosum Locket, 1962 | It | Info | ||
| Agroeca brunnea (Blackwall, 1833) | It | Info | ||
| Minicia candida Denis, 1946 | It | Info | ||
| Dasumia canestrinii (L. Koch, 1876) | It | Info | ||
| Walckenaeria capito (Westring, 1861) | It | Info | ||
| Attulus caricis (Westring, 1861) | It | Info | ||
| Sciastes carli (Lessert, 1907) | It | Endemic | Info | |
| Textrix caudata L. Koch, 1872 | It / Sard / Sic | Info | ||
| Centromerus cavernarum (L. Koch, 1872) | It | Info | ||
| Nesticus cellulanus (Clerck, 1757) | It | Info | ||
| Aculepeira ceropegia (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Philodromus cespitum (Walckenaer, 1802) | It / Sic | Info | ||
| Philaeus chrysops (Poda, 1761) | It / Sard / Sic | Info | ||
| Cicurina cicur (Fabricius, 1793) | It | Info | ||
| Pardosa cincta (Kulczynski, 1887) | It | Info | ||
| Salticus cingulatus (Panzer, 1797) | It / Sard | Info | ||
| Araneus circe (Audouin, 1826) | It / Sic | Info | ||
| Neriene clathrata (Sundevall, 1830) | It / Sard / Sic | Info | ||
| Callobius claustrarius (Hahn, 1833) | It | Info | ||
| Pachygnatha clercki Sundevall, 1823 | It / Sard | Info | ||
| Zelotes clivicola (L. Koch, 1870) | It | Info | ||
| Philodromus collinus C.L. Koch, 1835 | It | Info | ||
| Thanatus coloradensis Keyserling, 1880 | It | Info | ||
| Styloctetor compar (Westring, 1861) | It | Info | ||
| Clubiona comta C.L. Koch, 1839 | It / Sard | Info | ||
| Diplostyla concolor (Wider, 1834) | It / Sard / Sic | Info | ||
| Cyclosa conica (Pallas, 1772) | It / Sard / Sic | Info | ||
| Agyneta conigera (O. Pickard-Cambridge, 1863) | It | Info | ||
| Archaeodictyna consecuta (O. Pickard-Cambridge, 1872) | It | Info | ||
| Porrhomma convexum (Westring, 1851) | It / Sard | Info | ||
| Xysticus cor Canestrini, 1873 | It / Sard | Info | ||
| Sintula corniger (Blackwall, 1856) | It | Info | ||
| Theonina cornix (Simon, 1881) | It / Sard | Info | ||
| Larinioides cornutus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Clubiona corticalis (Walckenaer, 1802) | It / Sic | Info | ||
| Araeoncus crassiceps (Westring, 1861) | It | Info | ||
| Erigone cristatopalpus Simon, 1884 | It | Info | ||
| Tenuiphantes cristatus (Menge, 1866) | It | Info | ||
| Xysticus cristatus (Clerck, 1757) | It / Sard | Info | ||
| Walckenaeria cucullata (C.L. Koch, 1836) | It | Info | ||
| Araniella cucurbitina (Clerck, 1757) | It / Sard / Sic | Info | ||
| Alopecosa cuneata (Clerck, 1757) | It / Sic | Info | ||
| Agroeca cuprea Menge, 1873 | It | Info | ||
| Heliophanus cupreus (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Walckenaeria cuspidata Blackwall, 1833 | It | Info | ||
| Haplodrassus dalmatensis (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Pachygnatha degeeri Sundevall, 1830 | It / Sard / Sic | Info | ||
| Gnathonarium dentatum (Wider, 1834) | It / Sard / Sic | Info | ||
| Textrix denticulata (Olivier, 1789) | It / Sard | Info | ||
| Erigone dentipalpis (Wider, 1834) | It / Sard / Sic | Info | ||
| Xysticus desidiosus Simon, 1875 | It | Info | ||
| Araneus diadematus Clerck, 1757 | It / Sard / Sic | Info | ||
| Iberina difficilis (Harm, 1966) | It | Info | ||
| Zilla diodia (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Philodromus dispar Walckenaer, 1826 | It / Sard / Sic | Info | ||
| Clubiona diversa O. Pickard-Cambridge, 1862 | It | Info | ||
| Tegenaria domestica (Clerck, 1757) | It / Sard / Sic | Info | ||
| Diaea dorsata (Fabricius, 1777) | It / Sard / Sic | Info | ||
| Gongylidiellum edentatum Miller, 1951 | It | Info | ||
| Porrhomma egeria Simon, 1884 | It / Sic | Info | ||
| Antistea elegans (Blackwall, 1841) | It | Info | ||
| Silometopus elegans (O. Pickard-Cambridge, 1873) | It / Sic | Info | ||
| Pelecopsis elongata (Wider, 1834) | It / Sard | Info | ||
| Zelotes erebeus (Thorell, 1871) | It | Info | ||
| Pseudeuophrys erratica (Walckenaer, 1826) | It / Sard | Info | ||
| Xysticus erraticus (Blackwall, 1834) | It / Sard | Info | ||
| Scotinotylus evansi (O. Pickard-Cambridge, 1894) | It | Info | ||
| Hilaira excisa (O. Pickard-Cambridge, 1871) | It / Sic | Info | ||
| Nomisia exornata (C.L. Koch, 1839) | It / Sard / Sic | Info | ||
| Tallusia experta (O. Pickard-Cambridge, 1871) | It | Info | ||
| Agnyphantes expunctus (O. Pickard-Cambridge, 1875) | It | Info | ||
| Tetragnatha extensa (Linnaeus, 1758) | It / Sard / Sic | Info | ||
| Troglohyphantes fagei Roewer, 1931 | It | Endemic | Info | |
| Evarcha falcata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Alopecosa farinosa (Herman, 1879) | It / Sard / Sic | Info | ||
| Phlegra fasciata (Hahn, 1826) | It / Sic | Info | ||
| Amaurobius fenestralis (Ström, 1768) | It / Sard / Sic | Info | ||
| Pardosa ferruginea (L. Koch, 1870) | It | Info | ||
| Phrurolithus festivus (C.L. Koch, 1835) | It / Sic | Info | ||
| Asianellus festivus (C.L. Koch, 1834) | It / Sard | Info | ||
| Arctosa figurata (Simon, 1876) | It | Info | ||
| Saaristoa firma (O. Pickard-Cambridge, 1906) | It | Info | ||
| Tenuiphantes flavipes (Blackwall, 1854) | It / Sard | Info | ||
| Heliophanus flavipes (Hahn, 1832) | It / Sard / Sic | Info | ||
| Micaria formicaria (Sundevall, 1831) | It / Sic | Info | ||
| Thanatus formicinus (Clerck, 1757) | It / Sard | Info | ||
| Erigonoplus foveatus (Dahl, 1912) | It | Info | ||
| Mansuphantes fragilis (Thorell, 1875) | It | Info | ||
| Euophrys frontalis (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Frontinellina frutetorum (C.L. Koch, 1835) | It / Sard / Sic | Info | ||
| Micaria fulgens (Walckenaer, 1802) | It | Info | ||
| Ero furcata (Villers, 1789) | It | Info | ||
| Agyneta fuscipalpus (C.L. Koch, 1836) | It | Info | ||
| Xysticus gallicus Simon, 1875 | It | Info | ||
| Oedothorax gibbifer (Kulczynski, 1882) | It | Info | ||
| Pardosa giebeli (Pavesi, 1873) | It | Endemic | Info | |
| Synema globosum (Fabricius, 1775) | It / Sard / Sic | Info | ||
| Allagelena gracilens (C.L. Koch, 1841) | It / Sard / Sic | Info | ||
| Bathyphantes gracilis (Blackwall, 1841) | It / Sard | Info | ||
| Harpactea grisea (Canestrini, 1868) | It | Endemic | Info | |
| Agyneta gulosa (L. Koch, 1869) | It | Info | ||
| Crustulina guttata (Wider, 1834) | It / Sic | Info | ||
| Drassodex heeri (Pavesi, 1873) | It | Endemic | Info | |
| Diplocephalus helleri (L. Koch, 1869) | It | Info | ||
| Asthenargus helveticus Schenkel, 1936 | It | Info | ||
| Micrargus herbigradus (Blackwall, 1854) | It | Info | ||
| Gonatium hilare (Thorell, 1875) | It / Sic | Info | ||
| Clubiona hilaris Simon, 1878 | It | Info | ||
| Synageles hilarulus (C.L. Koch, 1846) | It | Info | ||
| Lasiargus hirsutus (Menge, 1869) | It | Info | ||
| Harpactea hombergi (Scopoli, 1763) | It / Sic | Info | ||
| Linyphia hortensis Sundevall, 1830 | It / Sard | Info | ||
| Pardosa hortensis (Thorell, 1872) | It / Sard | Info | ||
| Lathys humilis (Blackwall, 1855) | It / Sard | Info | ||
| Piratula hygrophila (Thorell, 1872) | It | Info | ||
| Phylloneta impressa (L. Koch, 1881) | It / Sard / Sic | Info | ||
| Centromerus incilium (L. Koch, 1881) | It | Info | ||
| Bolephthyphantes index (Thorell, 1856) | It | Info | ||
| Inermocoelotes inermis (L. Koch, 1855) | It | Info | ||
| Collinsia inerrans (O. Pickard-Cambridge, 1885) | It | Info | ||
| Typhochrestus inflatus Thaler, 1980 | It | Info | ||
| Alopecosa inquilina (Clerck, 1757) | It | Info | ||
| Tenuiphantes jacksonoides (van Helsdingen, 1977) | It | Info | ||
| Amaurobius jugorum L. Koch, 1868 | It | Info | ||
| Piratula knorri (Scopoli, 1763) | It / Sard | Info | ||
| Xysticus kochi Thorell, 1872 | It / Sard / Sic | Info | ||
| Bolyphantes kolosvaryi (Caporiacco, 1936) | It | Info | ||
| Incestophantes kotulai (Kulczynski, 1905) | It | Endemic | Info | |
| Ozyptila ladina Thaler & Zingerle, 1998 | It | Italian Endemic | Info | |
| Xysticus lanio C.L. Koch, 1835 | It / Sard | Info | ||
| Drassodes lapidosus (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Gongylidiellum latebricola (O. Pickard-Cambridge, 1871) | It | Info | ||
| Brigittea latens (Fabricius, 1775) | It / Sard / Sic | Info | ||
| Cetonana laticeps (Canestrini, 1868) | It / Sard | Info | ||
| Diplocephalus latifrons (O. Pickard-Cambridge, 1863) | It | Info | ||
| Piratula latitans (Blackwall, 1841) | It / Sard | Info | ||
| Zelotes latreillei (Simon, 1878) | It | Info | ||
| Caracladus leberti (Roewer, 1942) | It | Endemic | Info | |
| Arctosa leopardus (Sundevall, 1833) | It / Sard / Sic | Info | ||
| Formiphantes lephthyphantiformis (Strand, 1907) | It | Info | ||
| Harpactea lepida (C.L. Koch, 1838) | It | Info | ||
| Maro lepidus Casemir, 1961 | It | Info | ||
| Gnaphosa leporina (L. Koch, 1866) | It | Info | ||
| Centromerus leruthi Fage, 1933 | It | Info | ||
| Neon levis (Simon, 1871) | It / Sic | Info | ||
| Stemonyphantes lineatus (Linnaeus, 1758) | It | Info | ||
| Oxyopes lineatus lineatus Latreille, 1806 | It / Sard / Sic | Info | ||
| Tapinopa longidens (Wider, 1834) | It | Info | ||
| Zelotes longipes (L. Koch, 1866) | It | Info | ||
| Pardosa lugubris (Walckenaer, 1802) | It | Info | ||
| Gnaphosa lugubris (C.L. Koch, 1839) | It / Sard | Info | ||
| Parasteatoda lunata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Bolyphantes luteolus (Blackwall, 1833) | It / Sic | Info | ||
| Arctosa lutetiana (Simon, 1876) | It | Info | ||
| Philodromus margaritatus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Minicia marginella (Wider, 1834) | It | Info | ||
| Araneus marmoreus Clerck, 1757 | It / Sard / Sic | Info | ||
| Minyriolus medusa (Simon, 1881) | It / Sard | Info | ||
| Dipoena melanogaster (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Ostearius melanopygius (O. Pickard-Cambridge, 1880) | It / Sic | Introduced | Info | |
| Neaetha membrosa (Simon, 1868) | It / Sard / Sic | Info | ||
| Tenuiphantes mengei (Kulczynski, 1887) | It / Sard | Info | ||
| Metellina mengei (Blackwall, 1869) | It / Sard / Sic | Info | ||
| Evansia merens O. Pickard-Cambridge, 1901 | It | Info | ||
| Metellina merianae (Scopoli, 1763) | It / Sard / Sic | Info | ||
| Porrhomma microphthalmum (O. Pickard-Cambridge, 1871) | It | Info | ||
| Phrurolithus minimus C.L. Koch, 1839 | It | Info | ||
| Pisaura mirabilis (Clerck, 1757) | It / Sard / Sic | Info | ||
| Walckenaeria mitrata (Menge, 1868) | It | Info | ||
| Pardosa mixta (Kulczynski, 1887) | It | Info | ||
| Agyneta mollis (O. Pickard-Cambridge, 1871) | It / Sard | Info | ||
| Walckenaeria monoceros (Wider, 1834) | It / Sic | Info | ||
| Neriene montana (Clerck, 1757) | It | Info | ||
| Tetragnatha montana Simon, 1874 | It / Sard | Info | ||
| Zygiella montana (C.L. Koch, 1834) | It / Sard | Info | ||
| Gnaphosa montana (L. Koch, 1866) | It / Sic | Info | ||
| Palliduphantes montanus (Kulczynski, 1898) | It | Endemic | Info | |
| Anguliphantes monticola (Kulczynski, 1881) | It | Info | ||
| Pardosa monticola (Clerck, 1757) | It | Info | ||
| Talavera monticola (Kulczynski, 1884) | It | Info | ||
| Oreoneta montigena (L. Koch, 1872) | It | Info | ||
| Mughiphantes mughi (Fickert, 1875) | It | Info | ||
| Marpissa muscosa (Clerck, 1757) | It / Sard | Info | ||
| Syedra myrmicarum (Kulczynski, 1882) | It | Info | ||
| Theridion mystaceum L. Koch, 1870 | It / Sard / Sic | Info | ||
| Metopobactrus nadigi Thaler, 1976 | It | Endemic | Info | |
| Nusoncus nasutus (Schenkel, 1925) | It | Info | ||
| Hahnia nava (Blackwall, 1841) | It | Info | ||
| Clubiona neglecta O. Pickard-Cambridge, 1862 | It / Sard | Info | ||
| Xerolycosa nemoralis (Westring, 1861) | It / Sard | Info | ||
| Zora nemoralis (Blackwall, 1861) | It | Info | ||
| Pardosa nigra (C.L. Koch, 1834) | It / Sard | Info | ||
| Tetragnatha nigrita Lendl, 1886 | It | Info | ||
| Heterotheridion nigrovariegatum (Simon, 1873) | It / Sic | Info | ||
| Dysdera ninnii Canestrini, 1868 | It | Endemic | Info | |
| Psammitis ninnii (Thorell, 1872) | It / Sic | Info | ||
| Improphantes nitidus (Thorell, 1875) | It | Info | ||
| Lepthyphantes nodifer Simon, 1884 | It | Info | ||
| Walckenaeria nudipalpis (Westring, 1851) | It | Info | ||
| Tibellus oblongus (Walckenaer, 1802) | It / Sard | Info | ||
| Obscuriphantes obscurus (Blackwall, 1841) | It | Info | ||
| Xysticus obscurus Collett, 1877 | It | Info | ||
| Walckenaeria obtusa Blackwall, 1836 | It | Info | ||
| Tetragnatha obtusa C.L. Koch, 1837 | It / Sic | Info | ||
| Amaurobius obustus L. Koch, 1868 | It | Info | ||
| Ohlertidion ohlerti (Thorell, 1870) | It | Info | ||
| Gibbaranea omoeda (Thorell, 1870) | It / Sard | Info | ||
| Araniella opisthographa (Kulczynski, 1905) | It / Sic | Info | ||
| Pardosa oreophila Simon, 1937 | It | Info | ||
| Enoplognatha ovata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Centromerus pabulator (O. Pickard-Cambridge, 1875) | It | Info | ||
| Mecynargus paetulus (O. Pickard-Cambridge, 1875) | It | Info | ||
| Asthenargus paganus (Simon, 1884) | It | Info | ||
| Tapinocyba pallens (O. Pickard-Cambridge, 1873) | It | Info | ||
| Panamomops palmgreni Thaler, 1973 | It | Endemic | Info | |
| Pardosa palustris (Linnaeus, 1758) | It | Info | ||
| Phoroncidia paradoxa (Lucas, 1846) | It | Info | ||
| Hyptiotes paradoxus (C.L. Koch, 1834) | It / Sard / Sic | Info | ||
| Pelecopsis parallela (Wider, 1834) | It | Info | ||
| Steatoda paykulliana (Walckenaer, 1806) | It / Sard / Sic | Info | ||
| Neriene peltata (Wider, 1834) | It | Info | ||
| Moebelia penicillata (Westring, 1851) | It | Info | ||
| Arctosa personata (L. Koch, 1872) | It / Sard | Info | ||
| Zelotes petrensis (C.L. Koch, 1839) | It / Sic | Info | ||
| Talavera petrensis (C.L. Koch, 1837) | It | Info | ||
| Gnaphosa petrobia L. Koch, 1872 | It | Info | ||
| Asagena phalerata (Panzer, 1801) | It / Sard / Sic | Info | ||
| Pityohyphantes phrygianus (C.L. Koch, 1836) | It / Sard | Info | ||
| Atypus piceus (Sulzer, 1776) | It | Info | ||
| Scotargus pilosus Simon, 1913 | It | Info | ||
| Theridion pinastri L. Koch, 1872 | It / Sard / Sic | Info | ||
| Alopecosa pinetorum (Thorell, 1856) | It | Info | ||
| Tetragnatha pinicola L. Koch, 1870 | It | Info | ||
| Pirata piraticus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Ozyptila praticola (C.L. Koch, 1837) | It / Sard | Info | ||
| Pardosa prativaga (L. Koch, 1870) | It / Sard | Info | ||
| Cercidia prominens (Westring, 1851) | It / Sard | Info | ||
| Agroeca proxima (O. Pickard-Cambridge, 1871) | It | Info | ||
| Pardosa pseudostrigillata Tongiorgi, 1966 | It | Endemic | Info | |
| Drassodes pubescens (Thorell, 1856) | It / Sic | Info | ||
| Attulus pubescens (Fabricius, 1775) | It / Sard / Sic | Info | ||
| Mughiphantes pulcher (Kulczynski, 1881) | It | Info | ||
| Micaria pulicaria (Sundevall, 1831) | It / Sard | Info | ||
| Alopecosa pulverulenta (Clerck, 1757) | It / Sard / Sic | Info | ||
| Pocadicnemis pumila (Blackwall, 1841) | It | Info | ||
| Microlinyphia pusilla (Sundevall, 1830) | It / Sard / Sic | Info | ||
| Hahnia pusilla C.L. Koch, 1841 | It / Sard | Info | ||
| Dictyna pusilla Thorell, 1856 | It | Info | ||
| Minyriolus pusillus (Wider, 1834) | It | Info | ||
| Drassyllus pusillus (C.L. Koch, 1833) | It | Info | ||
| Hypsosinga pygmaea (Sundevall, 1831) | It / Sard / Sic | Info | ||
| Titanoeca quadriguttata (Hahn, 1833) | It | Info | ||
| Neriene radiata (Walckenaer, 1841) | It | Info | ||
| Hogna radiata (Latreille, 1817) | It / Sard / Sic | Info | ||
| Pelecopsis radicicola (L. Koch, 1872) | It | Info | ||
| Agyneta ramosa Jackson, 1912 | It | Info | ||
| Agalenatea redii (Scopoli, 1763) | It / Sard / Sic | Info | ||
| Erigone remota L. Koch, 1869 | It | Info | ||
| Arctosa renidescens Buchar & Thaler, 1995 | It | Endemic | Info | |
| Agyneta ressli (Wunderlich, 1973) | It | Info | ||
| Neon reticulatus (Blackwall, 1853) | It | Info | ||
| Oedothorax retusus (Westring, 1851) | It | Info | ||
| Pardosa riparia (C.L. Koch, 1833) | It | Info | ||
| Leptorhoptrum robustum (Westring, 1851) | It | Info | ||
| Bassaniodes robustus (Hahn, 1832) | It | Info | ||
| Gonatium rubellum (Blackwall, 1841) | It | Info | ||
| Gonatium rubens (Blackwall, 1833) | It | Info | ||
| Dendryphantes rudis (Sundevall, 1833) | It | Info | ||
| Macrargus rufus (Wider, 1834) | It | Info | ||
| Liocranum rupicola (Walckenaer, 1830) | It / Sard | Info | ||
| Attulus rupicola (C.L. Koch, 1837) | It | Info | ||
| Agyneta rurestris (C.L. Koch, 1836) | It / Sic | Info | ||
| Trochosa ruricola (De Geer, 1778) | It / Sard / Sic | Info | ||
| Araneus saevus (L. Koch, 1872) | It | Info | ||
| Hypsosinga sanguinea (C.L. Koch, 1844) | It / Sard / Sic | Info | ||
| Pardosa saturatior Simon, 1937 | It | Info | ||
| Sittisax saxicola (C.L. Koch, 1846) | It | Info | ||
| Salticus scenicus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Metellina segmentata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Centromerus sellarius (Simon, 1884) | It | Info | ||
| Segestria senoculata (Linnaeus, 1758) | It / Sard / Sic | Info | ||
| Haplodrassus signifer (C.L. Koch, 1839) | It / Sard / Sic | Info | ||
| Mecopisthes silus (O. Pickard-Cambridge, 1873) | It | Info | ||
| Tegenaria silvestris L. Koch, 1872 | It | Info | ||
| Haplodrassus silvestris (Blackwall, 1833) | It | Info | ||
| Zora silvestris Kulczynski, 1897 | It | Info | ||
| Cryphoeca silvicola (C.L. Koch, 1834) | It | Info | ||
| Centromerus silvicola (Kulczynski, 1887) | It | Info | ||
| Clubiona similis L. Koch, 1867 | It | Info | ||
| Zelotes similis (Kulczynski, 1887) | It | Info | ||
| Trichoncyboides simoni (Lessert, 1904) | It | Info | ||
| Phylloneta sisyphia (Clerck, 1757) | It / Sard / Sic | Info | ||
| Drapetisca socialis (Sundevall, 1833) | It | Info | ||
| Coelotes solitarius L. Koch, 1868 | It | Info | ||
| Zora spinimana (Sundevall, 1833) | It / Sard | Info | ||
| Clubiona stagnatilis Kulczynski, 1897 | It | Info | ||
| Tmarus stellio Simon, 1875 | It | Info | ||
| Lathys stigmatisata (Menge, 1869) | It | Info | ||
| Araneus sturmi (Hahn, 1831) | It | Info | ||
| Centromerus subalpinus Lessert, 1907 | It | Info | ||
| Erigonella subelevata (L. Koch, 1869) | It | Info | ||
| Argenna subnigra (O. Pickard-Cambridge, 1861) | It | Info | ||
| Clubiona subsultans Thorell, 1875 | It / Sard | Info | ||
| Zelotes subterraneus (C.L. Koch, 1833) | It | Info | ||
| Agyneta subtilis (O. Pickard-Cambridge, 1863) | It | Info | ||
| Maso sundevalli (Westring, 1851) | It | Info | ||
| Centromerus sylvaticus (Blackwall, 1841) | It | Info | ||
| Alopecosa taeniata (C.L. Koch, 1835) | It | Info | ||
| Zelotes talpinus (L. Koch, 1872) | It | Info | ||
| Oreoneta tatrica (Kulczynski, 1915) | It | Info | ||
| Tenuiphantes tenebricola (Wider, 1834) | It / Sard | Info | ||
| Pirata tenuitarsis Simon, 1876 | It / Sard | Info | ||
| Attulus terebratus (Clerck, 1757) | It | Info | ||
| Clubiona terrestris Westring, 1851 | It / Sard / Sic | Info | ||
| Trochosa terricola Thorell, 1856 | It / Sard / Sic | Info | ||
| Cybaeus tetricus (C.L. Koch, 1839) | It | Info | ||
| Enoplognatha thoracica (Hahn, 1833) | It / Sard / Sic | Info | ||
| Labulla thoracica (Wider, 1834) | It | Info | ||
| Platnickina tincta (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Histopona torpida (C.L. Koch, 1837) | It | Info | ||
| Dipoena torva (Thorell, 1875) | It / Sard | Info | ||
| Alopecosa trabalis (Clerck, 1757) | It | Info | ||
| Linyphia triangularis (Clerck, 1757) | It / Sard / Sic | Info | ||
| Steatoda triangulosa (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Heliophanus tribulosus Simon, 1868 | It / Sard / Sic | Info | ||
| Tegenaria tridentina L. Koch, 1872 | It | Endemic | Info | |
| Mermessus trilobatus (Emerton, 1882) | It | Introduced | Info | |
| Pellenes tripunctatus (Walckenaer, 1802) | It | Info | ||
| Lasaeola tristis (Hahn, 1833) | It / Sard | Info | ||
| Clubiona trivialis C.L. Koch, 1843 | It | Info | ||
| Episinus truncatus Latreille, 1809 | It / Sard / Sic | Info | ||
| Robertus truncorum (L. Koch, 1872) | It | Info | ||
| Ozyptila trux (Blackwall, 1846) | It | Info | ||
| Nuctenea umbratica (Clerck, 1757) | It / Sic | Info | ||
| Haplodrassus umbratilis (L. Koch, 1866) | It | Info | ||
| Aelurillus v-insignitus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Pseudeuophrys vafra (Blackwall, 1867) | It / Sard / Sic | Info | ||
| Prinerigone vagans (Audouin, 1826) | It / Sard / Sic | Info | ||
| Tiso vagans (Blackwall, 1834) | It / Sard | Info | ||
| Oreonetides vaginatus (Thorell, 1872) | It | Info | ||
| Philodromus vagulus Simon, 1875 | It | Info | ||
| Mughiphantes variabilis (Kulczynski, 1887) | It | Endemic | Info | |
| Theridion varians varians Hahn, 1833 | It / Sard / Sic | Info | ||
| Poeciloneta variegata (Blackwall, 1841) | It | Info | ||
| Misumena vatia (Clerck, 1757) | It / Sard / Sic | Info | ||
| Walckenaeria vigilax (Blackwall, 1853) | It | Info | ||
| Drassyllus villicus (Thorell, 1875) | It | Info | ||
| Micrommata virescens (Clerck, 1757) | It / Sard | Info | ||
| Salticus zebraneus (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Attulus zimmermanni (Simon, 1877) | It / Sic | Info |