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DISTRIBUTION
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| Saaristoa abnormis (Blackwall, 1841) | It | Info | ||
| Mangora acalypha (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Anyphaena accentuata (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Xysticus acerbus Thorell, 1872 | It / Sard / Sic | Info | ||
| Alopecosa aculeata (Clerck, 1757) | It | Info | ||
| Entelecara acuminata (Wider, 1834) | It / Sard | Info | ||
| Neoscona adianta (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Marinarozelotes adriaticus (Caporiacco, 1951) | It | Info | ||
| Micaria aenea Thorell, 1871 | It | Info | ||
| Zelotes aeneus (Simon, 1878) | It | Info | ||
| Heliophanus aeneus (Hahn, 1832) | It / Sic | Info | ||
| Pseudomaro aenigmaticus Denis, 1966 | It | Info | ||
| Talavera aequipes (O. Pickard-Cambridge, 1871) | It / Sard / Sic | Info | ||
| Atypus affinis Eichwald, 1830 | It | Info | ||
| Trichoncus affinis Kulczynski, 1894 | It | Info | ||
| Gorbiscape agelenoides (Walckenaer, 1841) | It / Sic | Info | ||
| Oedothorax agrestis (Blackwall, 1853) | It | Info | ||
| Pardosa agrestis (Westring, 1861) | It | Info | ||
| Eratigena agrestis (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Tenuiphantes alacris (Blackwall, 1853) | It | Info | ||
| Pardosa alacris (C.L. Koch, 1833) | It | Info | ||
| Gnaphosa alacris Simon, 1878 | It / Sard / Sic | Info | ||
| Philodromus albidus Kulczynski, 1911 | It / Sic | Info | ||
| Aulonia albimana (Walckenaer, 1805) | It / Sard / Sic | Info | ||
| Alopecosa albofasciata (Brullé, 1832) | It / Sard / Sic | Info | ||
| Nurscia albomaculata (Lucas, 1846) | It / Sard / Sic | Info | ||
| Troglohyphantes albopictus Pesarini, 1989 | It | Italian Endemic | Info | |
| Hypsosinga albovittata (Westring, 1851) | It / Sard / Sic | Info | ||
| Micaria albovittata (Lucas, 1846) | It / Sard | Info | ||
| Zangherella algerica (Simon, 1895) | It | Info | ||
| Linyphia alpicola van Helsdingen, 1969 | It | Info | ||
| Diplocephalus alpinus (O. Pickard-Cambridge, 1873) | It | Info | ||
| Araneus alsine (Walckenaer, 1802) | It / Sic | Info | ||
| Bolyphantes alticeps (Sundevall, 1833) | It | Info | ||
| Walckenaeria alticeps (Denis, 1952) | It | Info | ||
| Pardosa amentata (Clerck, 1757) | It | Info | ||
| Araeoncus anguineus (L. Koch, 1869) | It | Info | ||
| Episinus angulatus (Blackwall, 1836) | It / Sic | Info | ||
| Araneus angulatus Clerck, 1757 | It / Sic | Info | ||
| Echemus angustifrons (Westring, 1861) | It / Sic | Info | ||
| Inermocoelotes anoplus (Kulczynski, 1897) | It | Info | ||
| Walckenaeria antica (Wider, 1834) | It / Sard | Info | ||
| Micrargus apertus (O. Pickard-Cambridge, 1871) | It | Info | ||
| Ero aphana (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Oedothorax apicatus (Blackwall, 1850) | It | Info | ||
| Zelotes apricorum (L. Koch, 1876) | It / Sic | Info | ||
| Argyroneta aquatica (Clerck, 1757) | It | Info | ||
| Evarcha arcuata (Clerck, 1757) | It / Sic | Info | ||
| Olios argelasius (Walckenaer, 1806) | It / Sard / Sic | Info | ||
| Mansuphantes aridus (Thorell, 1875) | It | Endemic | Info | |
| Aculepeira armida (Audouin, 1826) | It / Sard / Sic | 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 | ||
| Thanatus atratus Simon, 1875 | It | Info | ||
| Zygiella atrica (C.L. Koch, 1845) | It / Sard | Info | ||
| Eratigena atrica (C.L. Koch, 1843) | It | Info | ||
| Zelotes atrocaeruleus (Simon, 1878) | It / Sic | Info | ||
| Xysticus audax (Schrank, 1803) | It / Sard / Sic | Info | ||
| Kochiura aulica (C.L. Koch, 1838) | It / Sard / Sic | Info | ||
| Heliophanus auratus C.L. Koch, 1835 | It / Sard / Sic | Info | ||
| Philodromus aureolus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Sibianor aurocinctus (Ohlert, 1865) | It | Info | ||
| Nomisia aussereri (L. Koch, 1872) | It / Sard / Sic | Info | ||
| Erigone autumnalis Emerton, 1882 | It | Introduced | Info | |
| Caracladus avicula (L. Koch, 1869) | It | Info | ||
| Gnaphosa badia (L. Koch, 1866) | It | Info | ||
| Marinarozelotes barbatus (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Saitis barbipes (Simon, 1868) | It / Sard | Info | ||
| Segestria bavarica C.L. Koch, 1843 | It / Sard / Sic | Info | ||
| Leptorchestes berolinensis (C.L. Koch, 1846) | It | Info | ||
| Centromerita bicolor (Blackwall, 1833) | 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 | ||
| Gibbaranea bituberculata (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Cozyptila blackwalli (Simon, 1875) | It / Sard / Sic | Info | ||
| Mioxena blanda (Simon, 1884) | It | Info | ||
| Pardosa blanda (C.L. Koch, 1833) | It | Info | ||
| Psammitis bonneti (Denis, 1938) | It | Info | ||
| Phaeocedus braccatus (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Silometopus braunianus Thaler, 1978 | It | Endemic | Info | |
| Phlegra bresnieri (Lucas, 1846) | It / Sard / Sic | Info | ||
| Centromerus brevipalpus (Menge, 1866) | It | Info | ||
| Ceratinella brevipes (Westring, 1851) | It | Info | ||
| Clubiona brevipes Blackwall, 1841 | It / Sic | Info | ||
| Ozyptila brevipes (Hahn, 1826) | It / Sard | Info | ||
| Ceratinella brevis (Wider, 1834) | It | Info | ||
| Cryphoeca brignolii Thaler, 1980 | It | Endemic | Info | |
| Argiope bruennichi (Scopoli, 1772) | It / Sard / Sic | Info | ||
| Agroeca brunnea (Blackwall, 1833) | It | Info | ||
| Mughiphantes brunneri (Thaler, 1984) | It | Italian Endemic | Info | |
| Clubiona caerulescens L. Koch, 1867 | It | Info | ||
| Macrothele calpeiana (Walckenaer, 1805) | It / Sard | Info | ||
| Iberina candida (Simon, 1875) | It / Sard | Info | ||
| Dasumia canestrinii (L. Koch, 1876) | It | Info | ||
| Mendoza canestrinii (Ninni, 1868) | It / Sard / Sic | Info | ||
| Walckenaeria capito (Westring, 1861) | It | Info | ||
| Zodarion caporiaccoi Roewer, 1942 | It | Italian Endemic | Info | |
| Centromerus capucinus (Simon, 1884) | It | Info | ||
| Aculepeira carbonaria (L. Koch, 1869) | It | Info | ||
| Enoplognatha caricis (Fickert, 1876) | It | Info | ||
| Attulus caricis (Westring, 1861) | It | Info | ||
| Macrargus carpenteri (O. Pickard-Cambridge, 1895) | It | Info | ||
| Phintella castriesiana (Grube, 1861) | It / Sic | Info | ||
| Textrix caudata L. Koch, 1872 | It / Sard / Sic | Info | ||
| Agyneta cauta (O. Pickard-Cambridge, 1903) | It | Info | ||
| Centromerus cavernarum (L. Koch, 1872) | It | Info | ||
| Scotina celans (Blackwall, 1841) | It / Sard / Sic | Info | ||
| Oecobius cellariorum (Dugès, 1836) | It | Info | ||
| Nesticus cellulanus (Clerck, 1757) | It | Info | ||
| Aculepeira ceropegia (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Philodromus cespitum (Walckenaer, 1802) | It / Sic | Info | ||
| Ballus chalybeius (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Philaeus chrysops (Poda, 1761) | It / Sard / Sic | Info | ||
| Cicurina cicur (Fabricius, 1793) | It | Info | ||
| Arctosa cinerea (Fabricius, 1777) | It / Sard / Sic | Info | ||
| Salticus cingulatus (Panzer, 1797) | It / Sard | Info | ||
| Araneus circe (Audouin, 1826) | It / Sic | Info | ||
| Trichopterna cito (O. Pickard-Cambridge, 1873) | It | Info | ||
| Neriene clathrata (Sundevall, 1830) | It / Sard / Sic | Info | ||
| Callobius claustrarius (Hahn, 1833) | It | Info | ||
| Ozyptila claveata (Walckenaer, 1837) | It | Info | ||
| Pachygnatha clercki Sundevall, 1823 | It / Sard | Info | ||
| Philodromus collinus C.L. Koch, 1835 | It | Info | ||
| Styloctetor compar (Westring, 1861) | It | Info | ||
| Clubiona comta C.L. Koch, 1839 | It / Sard | Info | ||
| Centromerita concinna (Thorell, 1875) | It | Info | ||
| Diplostyla concolor (Wider, 1834) | It / Sard / Sic | Info | ||
| Cyclosa conica (Pallas, 1772) | It / Sard / Sic | Info | ||
| Salticus conjonctus (Simon, 1868) | It / Sard | Info | ||
| Lasaeola convexa (Blackwall, 1870) | It / Sard / Sic | Info | ||
| Porrhomma convexum (Westring, 1851) | It / Sard | Info | ||
| Lasaeola coracina (C.L. Koch, 1837) | It / Sard | Info | ||
| Sintula corniger (Blackwall, 1856) | It | Info | ||
| Theonina cornix (Simon, 1881) | It / Sard | Info | ||
| Hypomma cornutum (Blackwall, 1833) | It | Info | ||
| Mughiphantes cornutus (Schenkel, 1927) | It | Info | ||
| Larinioides cornutus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Pardosa cribrata Simon, 1876 | It / Sard | Info | ||
| Erigone cristatopalpus Simon, 1884 | It | Info | ||
| Diplocephalus cristatus (Blackwall, 1833) | It | Info | ||
| Tenuiphantes cristatus (Menge, 1866) | It | Info | ||
| Xysticus cristatus (Clerck, 1757) | It / Sard | Info | ||
| Dysdera crocata C.L. Koch, 1838 | It / Sard / Sic | 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 | ||
| Micaria cyrnea Brignoli, 1983 | It / Sard | Info | ||
| Haplodrassus dalmatensis (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Tegenaria dalmatica Kulczynski, 1906 | It / Sard / Sic | Info | ||
| Pachygnatha degeeri Sundevall, 1830 | It / Sard / Sic | Info | ||
| Gnathonarium dentatum (Wider, 1834) | It / Sard / Sic | Info | ||
| Diplocephalus dentatus Tullgren, 1955 | It | Info | ||
| Lessertia dentichelis (Simon, 1884) | It / Sard | 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 | ||
| Saloca diceros (O. Pickard-Cambridge, 1871) | It | Info | ||
| Iberina difficilis (Harm, 1966) | It | Info | ||
| Zilla diodia (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Araeoncus discedens (Simon, 1881) | It | Info | ||
| Philodromus dispar Walckenaer, 1826 | It / Sard / Sic | Info | ||
| Attulus distinguendus (Simon, 1868) | It | Info | ||
| Clubiona diversa O. Pickard-Cambridge, 1862 | It | Info | ||
| Tegenaria domestica (Clerck, 1757) | It / Sard / Sic | Info | ||
| Oonops domesticus Dalmas, 1916 | It | Info | ||
| Diaea dorsata (Fabricius, 1777) | It / Sard / Sic | Info | ||
| Nemesia dubia O. Pickard-Cambridge, 1874 | It | Info | ||
| Uroctea durandi (Latreille, 1809) | It / Sard / Sic | Info | ||
| Gongylidiellum edentatum Miller, 1951 | It | Info | ||
| Zelotes electus (C.L. Koch, 1839) | It / Sic | Info | ||
| Antistea elegans (Blackwall, 1841) | It | Info | ||
| Cheiracanthium elegans Thorell, 1875 | It | Info | ||
| Pelecopsis elongata (Wider, 1834) | It / Sard | Info | ||
| Neriene emphana (Walckenaer, 1841) | It | Info | ||
| Pseudicius encarpatus (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Euryopis episinoides (Walckenaer, 1847) | It / Sard / Sic | Info | ||
| Amaurobius erberi (Keyserling, 1863) | It / Sard / Sic | Info | ||
| Zelotes erebeus (Thorell, 1871) | It | Info | ||
| Kryptonesticus eremita (Simon, 1880) | It / Sard / Sic | Info | ||
| Pseudeuophrys erratica (Walckenaer, 1826) | It / Sard | Info | ||
| Cheiracanthium erraticum (Walckenaer, 1802) | It / Sic | Info | ||
| Xysticus erraticus (Blackwall, 1834) | It / Sard | Info | ||
| Entelecara erythropus (Westring, 1851) | It / Sic | Info | ||
| Hilaira excisa (O. Pickard-Cambridge, 1871) | It / Sic | Info | ||
| Zelotes exiguus (Müller & Schenkel, 1895) | It | 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 exul Thaler, 1987 | It | Italian Endemic | Info | |
| Troglohyphantes fagei Roewer, 1931 | It | Endemic | Info | |
| Evarcha falcata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Rhysodromus fallax (Sundevall, 1833) | It | Info | ||
| Theridion familiare O. Pickard-Cambridge, 1871 | It / Sard | Info | ||
| Alopecosa farinosa (Herman, 1879) | It / Sard / Sic | Info | ||
| Phlegra fasciata (Hahn, 1826) | It / Sic | Info | ||
| Troglohyphantes fatalis Pesarini, 1988 | It | Italian Endemic | Info | |
| Amaurobius fenestralis (Ström, 1768) | It / Sard / Sic | Info | ||
| Amaurobius ferox (Walckenaer, 1830) | It / Sard | Info | ||
| Pardosa ferruginea (L. Koch, 1870) | It | Info | ||
| Tegenaria ferruginea (Panzer, 1804) | It | Info | ||
| Phrurolithus festivus (C.L. Koch, 1835) | It / Sic | Info | ||
| Asianellus festivus (C.L. Koch, 1834) | It / Sard | Info | ||
| Dolomedes fimbriatus (Clerck, 1757) | It | Info | ||
| Saaristoa firma (O. Pickard-Cambridge, 1906) | It | Info | ||
| Ero flammeola Simon, 1881 | It / Sard | Info | ||
| Titanoeca flavicoma L. Koch, 1872 | It | Info | ||
| Hyptiotes flavidus (Blackwall, 1862) | It / Sard | Info | ||
| Tenuiphantes flavipes (Blackwall, 1854) | It / Sard | Info | ||
| Heliophanus flavipes (Hahn, 1832) | It / Sard / Sic | Info | ||
| Euryopis flavomaculata (C.L. Koch, 1836) | It | Info | ||
| Segestria florentina (Rossi, 1790) | It / Sard / Sic | Info | ||
| Attulus floricola (C.L. Koch, 1837) | It | Info | ||
| Micaria formicaria (Sundevall, 1831) | It / Sic | Info | ||
| Myrmarachne formicaria (De Geer, 1778) | It / Sard / 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 | ||
| Eratigena fuesslini (Pavesi, 1873) | It / Sic | Info | ||
| Micaria fulgens (Walckenaer, 1802) | It | Info | ||
| Arctosa fulvolineata (Lucas, 1846) | It / Sard / Sic | Info | ||
| Hypomma fulvum (Bösenberg, 1902) | It | Info | ||
| Ero furcata (Villers, 1789) | It | Info | ||
| Walckenaeria furcillata (Menge, 1869) | It | Info | ||
| Neriene furtiva (O. Pickard-Cambridge, 1871) | It / Sard | Info | ||
| Monocephalus fuscipes (Blackwall, 1836) | It | Info | ||
| Oedothorax fuscus (Blackwall, 1834) | It | Info | ||
| Zodarion gallicum (Simon, 1873) | It / Sard | Info | ||
| Maso gallicus Simon, 1894 | It / Sard | Info | ||
| Xysticus gallicus Simon, 1875 | It | Info | ||
| Euophrys gambosa (Simon, 1868) | It / Sard / Sic | Info | ||
| Porrhoclubiona genevensis (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Pellenes geniculatus (Simon, 1868) | It / Sard / Sic | Info | ||
| Clubiona germanica Thorell, 1871 | It | Info | ||
| Gibbaranea gibbosa (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Euryopis giordanii Caporiacco, 1950 | It | Italian Endemic | Info | |
| Oreonetides glacialis (L. Koch, 1872) | It | Info | ||
| Pulchellodromus glaucinus (Simon, 1870) | It / Sard / Sic | Info | ||
| Erigonoplus globipes (L. Koch, 1872) | It | Info | ||
| Synema globosum (Fabricius, 1775) | It / Sard / Sic | Info | ||
| Theridula gonygaster (Simon, 1873) | It | Introduced | Info | |
| Allagelena gracilens (C.L. Koch, 1841) | It / Sard / Sic | Info | ||
| Bathyphantes gracilis (Blackwall, 1841) | It / Sard | Info | ||
| Runcinia grammica (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Dysdera granulata Kulczynski, 1897 | It | Endemic | Info | |
| Harpactea grisea (Canestrini, 1868) | It | Endemic | Info | |
| Steatoda grossa (C.L. Koch, 1838) | It / Sard / Sic | Introduced | Info | |
| Araneus grossus (C.L. Koch, 1844) | It | Info | ||
| Agyneta gulosa (L. Koch, 1869) | It | Info | ||
| Crustulina guttata (Wider, 1834) | It / Sic | Info | ||
| Trichoncus hackmani Millidge, 1955 | It | Info | ||
| Singa hamata (Clerck, 1757) | It / Sard | Info | ||
| Zodarion hamatum Wiehle, 1964 | It | Endemic | Info | |
| Icius hamatus (C.L. Koch, 1846) | It / Sard / Sic | Info | ||
| Tegenaria hasperi Chyzer, 1897 | It / Sic | Info | ||
| Drassodex heeri (Pavesi, 1873) | It | Endemic | Info | |
| Diplocephalus helleri (L. Koch, 1869) | It | Info | ||
| Asthenargus helveticus Schenkel, 1936 | It | Info | ||
| Theridion hemerobium Simon, 1914 | It | Info | ||
| Neottiura herbigrada (Simon, 1873) | It / Sard | Info | ||
| Hypsosinga heri (Hahn, 1831) | It / Sic | Info | ||
| Zelotes hermani (Chyzer, 1897) | It | Info | ||
| Oxyopes heterophthalmus (Latreille, 1804) | It / Sard / Sic | Info | ||
| Clubiona hilaris Simon, 1878 | It | Info | ||
| Synageles hilarulus (C.L. Koch, 1846) | It | Info | ||
| Heriaeus hirtus (Latreille, 1819) | It / Sard / Sic | Info | ||
| Trochosa hispanica Simon, 1870 | It / Sard | Info | ||
| Rhysodromus histrio (Latreille, 1819) | It / Sard / Sic | Info | ||
| Marinarozelotes holosericeus (Simon, 1878) | It | Info | ||
| Harpactea hombergi (Scopoli, 1763) | It / Sic | Info | ||
| Linyphia hortensis Sundevall, 1830 | It / Sard | Info | ||
| Pardosa hortensis (Thorell, 1872) | It / Sard | Info | ||
| Araeoncus humilis (Blackwall, 1841) | It / Sard / Sic | Info | ||
| Lathys humilis (Blackwall, 1855) | It / Sard | Info | ||
| Piratula hygrophila (Thorell, 1872) | It | Info | ||
| Xysticus ibex Simon, 1875 | It / Sard | Info | ||
| Typhlonesticus idriacus (Roewer, 1931) | It | Endemic | Info | |
| Microlinyphia impigra (O. Pickard-Cambridge, 1871) | It | Info | ||
| Phylloneta impressa (L. Koch, 1881) | It / Sard / Sic | Info | ||
| Centromerus incilium (L. Koch, 1881) | It | Info | ||
| Gnaphosa inconspecta Simon, 1878 | It | Info | ||
| Bolephthyphantes index (Thorell, 1856) | It | Info | ||
| Pelecopsis inedita (O. Pickard-Cambridge, 1875) | It / Sard / Sic | Info | ||
| Tapinesthis inermis (Simon, 1882) | It | Info | ||
| Inermocoelotes inermis (L. Koch, 1855) | It | Info | ||
| Attulus inexpectus (Logunov & Kronestedt, 1997) | It | Info | ||
| Chalcoscirtus infimus (Simon, 1868) | It / Sard / Sic | Info | ||
| Typhochrestus inflatus Thaler, 1980 | It | Info | ||
| Alopecosa inquilina (Clerck, 1757) | It | Info | ||
| Tapinocyba insecta (L. Koch, 1869) | It | Info | ||
| Filistata insidiatrix (Forsskål, 1775) | It / Sard / Sic | Info | ||
| Rugathodes instabilis (O. Pickard-Cambridge, 1871) | It | Info | ||
| Cybaeus intermedius Maurer, 1992 | It | Endemic | Info | |
| Palliduphantes istrianus (Kulczynski, 1914) | It | Info | ||
| Protoleptoneta italica (Simon, 1907) | It | Info | ||
| Asagena italica (Knoflach, 1996) | It | Info | ||
| Zodarion italicum (Canestrini, 1868) | It / Sard | Info | ||
| Tenuiphantes jacksonoides (van Helsdingen, 1977) | It | Info | ||
| Microdipoena jobi (Kraus, 1967) | It / Sard | Info | ||
| Evarcha jucunda (Lucas, 1846) | It / Sard / Sic | Info | ||
| Amaurobius jugorum L. Koch, 1868 | It | Info | ||
| Pocadicnemis juncea Locket & Millidge, 1953 | It / Sard | Info | ||
| Clubiona juvenis Simon, 1878 | It | Info | ||
| Piratula knorri (Scopoli, 1763) | It / Sard | Info | ||
| Xysticus kochi Thorell, 1872 | It / Sard / Sic | Info | ||
| Heliophanus kochii Simon, 1868 | It / Sard / Sic | Info | ||
| Dysdera kollari Doblika, 1853 | It / Sard / Sic | Info | ||
| Eresus kollari Rossi, 1846 | It / Sard / Sic | Info | ||
| Bolyphantes kolosvaryi (Caporiacco, 1936) | It | Info | ||
| Incestophantes kotulai (Kulczynski, 1905) | It | Endemic | Info | |
| Scutpelecopsis krausi (Wunderlich, 1980) | It | Info | ||
| Agelena labyrinthica (Clerck, 1757) | It / Sard / Sic | Info | ||
| Arctosa lacustris (Simon, 1876) | It / Sard / Sic | Info | ||
| Ozyptila ladina Thaler & Zingerle, 1998 | It | Italian Endemic | Info | |
| Evarcha laetabunda (C.L. Koch, 1846) | It | Info | ||
| Walckenaeria languida (Simon, 1915) | It | Info | ||
| Pseudeuophrys lanigera (Simon, 1871) | It / Sic | Info | ||
| Xysticus lanio C.L. Koch, 1835 | It / Sard | Info | ||
| Dysdera lantosquensis Simon, 1882 | It | Endemic | Info | |
| Drassodes lapidosus (Walckenaer, 1802) | It / Sard / Sic | 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 | ||
| Arctosa leopardus (Sundevall, 1833) | It / Sard / Sic | Info | ||
| Harpactea lepida (C.L. Koch, 1838) | It | Info | ||
| Gnaphosa leporina (L. Koch, 1866) | It | Info | ||
| Lepthyphantes leprosus (Ohlert, 1865) | It / Sic | Info | ||
| Troglohyphantes lessinensis Caporiacco, 1936 | It | Italian Endemic | Info | |
| Neon levis (Simon, 1871) | It / Sic | Info | ||
| Stemonyphantes lineatus (Linnaeus, 1758) | It | Info | ||
| Oxyopes lineatus lineatus Latreille, 1806 | It / Sard / Sic | Info | ||
| Heliophanus lineiventris Simon, 1868 | It / Sic | Info | ||
| Robertus lividus (Blackwall, 1836) | It | Info | ||
| Philodromus lividus Simon, 1875 | It / Sard | Info | ||
| Argiope lobata (Pallas, 1772) | It / Sard / Sic | Info | ||
| Tapinopa longidens (Wider, 1834) | It | Info | ||
| Erigone longipalpis (Sundevall, 1830) | It | Info | ||
| Orchestina longipes Dalmas, 1922 | It | Info | ||
| Zelotes longipes (L. Koch, 1866) | It | Info | ||
| Harpactea longobarda Pesarini, 2001 | It | Info | ||
| Silhouettella loricatula (Roewer, 1942) | It / Sard / Sic | Introduced | Info | |
| Gnaphosa lucifuga (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Pardosa luctinosa Simon, 1876 | It | Info | ||
| Xysticus luctuosus (Blackwall, 1836) | It / Sard | Info | ||
| Pardosa lugubris (Walckenaer, 1802) | It | Info | ||
| Parasteatoda lunata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Agroeca lusatica (L. Koch, 1875) | It | Info | ||
| Bolyphantes luteolus (Blackwall, 1833) | It / Sic | Info | ||
| Clubiona lutescens Westring, 1851 | It | Info | ||
| Drassodes lutescens (C.L. Koch, 1839) | It / Sard / Sic | Info | ||
| Arctosa lutetiana (Simon, 1876) | It | Info | ||
| Marinarozelotes lyonneti (Audouin, 1826) | It / Sard / Sic | Info | ||
| Haplodrassus macellinus (Thorell, 1871) | It / Sard / Sic | Info | ||
| Tibellus macellus Simon, 1875 | It / Sard / Sic | Info | ||
| Arctosa maculata (Hahn, 1822) | It | Info | ||
| Oecobius maculatus Simon, 1870 | It / Sard / Sic | Info | ||
| Paratrachelas maculatus (Thorell, 1875) | It | Info | ||
| Episinus maculipes Cavanna, 1876 | It / Sard / Sic | Info | ||
| Enoplognatha mandibularis (Lucas, 1846) | It / Sard / Sic | Info | ||
| Mansuphantes mansuetus (Thorell, 1875) | It | Info | ||
| Philodromus margaritatus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Minicia marginella (Wider, 1834) | It | Info | ||
| Alopecosa mariae (Dahl, 1908) | It | Info | ||
| Tibellus maritimus (Menge, 1875) | It / Sic | Info | ||
| Araneus marmoreus Clerck, 1757 | It / Sard / Sic | Info | ||
| Coelotes mediocris Kulczynski, 1887 | It | Info | ||
| Robertus mediterraneus Eskov, 1987 | It | Info | ||
| Ostearius melanopygius (O. Pickard-Cambridge, 1880) | It / Sic | Introduced | Info | |
| Theridion melanurum Hahn, 1831 | It / Sard / Sic | Info | ||
| Neaetha membrosa (Simon, 1868) | It / Sard / Sic | Info | ||
| Meta menardi (Latreille, 1804) | It / 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 | ||
| Mughiphantes merretti (Millidge, 1975) | It | Italian Endemic | Info | |
| Inermocoelotes microlepidus (de Blauwe, 1973) | It | Info | ||
| Porrhomma microphthalmum (O. Pickard-Cambridge, 1871) | It | Info | ||
| Porrhomma microps (Roewer, 1931) | It | Info | ||
| Midia midas (Simon, 1884) | It | Info | ||
| Cheiracanthium mildei L. Koch, 1864 | It / Sard / Sic | Info | ||
| Xerolycosa miniata (C.L. Koch, 1834) | It | Info | ||
| Phrurolithus minimus C.L. Koch, 1839 | It | Info | ||
| Cybaeus minor Chyzer, 1897 | It | Info | ||
| Trachelas minor O. Pickard-Cambridge, 1872 | It / Sard | Info | ||
| Lepthyphantes minutus (Blackwall, 1833) | It / Sard / Sic | Info | ||
| Maro minutus O. Pickard-Cambridge, 1907 | It | Info | ||
| Pisaura mirabilis (Clerck, 1757) | It / Sard / Sic | Info | ||
| Tuberta mirabilis (Thorell, 1871) | It | Italian Endemic | Info | |
| Walckenaeria mitrata (Menge, 1868) | It | Info | ||
| Pardosa mixta (Kulczynski, 1887) | It | Info | ||
| Agyneta mollis (O. Pickard-Cambridge, 1871) | It / Sard | Info | ||
| Tetragnatha montana Simon, 1874 | It / Sard | Info | ||
| Zygiella montana (C.L. Koch, 1834) | It / Sard | Info | ||
| Iberina montana (Blackwall, 1841) | It | Info | ||
| Palliduphantes montanus (Kulczynski, 1898) | It | Endemic | Info | |
| Cybaeus montanus Maurer, 1992 | It | Endemic | Info | |
| Anguliphantes monticola (Kulczynski, 1881) | It | Info | ||
| Pardosa monticola (Clerck, 1757) | It | Info | ||
| Oreoneta montigena (L. Koch, 1872) | It | Info | ||
| Mughiphantes mughi (Fickert, 1875) | It | Info | ||
| Atypus muralis Bertkau, 1890 | It | Info | ||
| Gongylidiellum murcidum Simon, 1884 | It / Sard | Info | ||
| Marpissa muscosa (Clerck, 1757) | It / Sard | Info | ||
| Marinarozelotes mutabilis (Simon, 1878) | It / Sic | Info | ||
| Salticus mutabilis Lucas, 1846 | It / Sard / Sic | Info | ||
| Leptorchestes mutilloides (Lucas, 1846) | It / Sard / Sic | Info | ||
| Cresmatoneta mutinensis (Canestrini, 1868) | It / Sard / Sic | Info | ||
| Theridion mystaceum L. Koch, 1870 | It / Sard / Sic | Info | ||
| Metopobactrus nadigi Thaler, 1976 | It | Endemic | Info | |
| Pritha nana (Simon, 1868) | It / Sard / Sic | Info | ||
| Hahnia nava (Blackwall, 1841) | It | Info | ||
| Oecobius navus Blackwall, 1859 | It / Sard / Sic | Info | ||
| Clubiona neglecta O. Pickard-Cambridge, 1862 | It / Sard | Info | ||
| Robertus neglectus (O. Pickard-Cambridge, 1871) | It | Info | ||
| Xerolycosa nemoralis (Westring, 1861) | It / Sard | Info | ||
| Zora nemoralis (Blackwall, 1861) | It | Info | ||
| Mecopisthes nicaeensis (Simon, 1884) | It | Info | ||
| Macaroeris nidicolens (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Pardosa nigra (C.L. Koch, 1834) | It / Sard | Info | ||
| Bathyphantes nigrinus (Westring, 1851) | It | Info | ||
| Tetragnatha nigrita Lendl, 1886 | It | Info | ||
| Pellenes nigrociliatus (Simon, 1875) | It / Sard / Sic | Info | ||
| Heterotheridion nigrovariegatum (Simon, 1873) | It / Sic | Info | ||
| Dicymbium nigrum (Blackwall, 1834) | It | Info | ||
| Dysdera ninnii Canestrini, 1868 | It | Endemic | Info | |
| Psammitis ninnii (Thorell, 1872) | It / Sic | Info | ||
| Singa nitidula C.L. Koch, 1844 | It | Info | ||
| Improphantes nitidus (Thorell, 1875) | It | Info | ||
| Cryphoeca nivalis Schenkel, 1919 | It | Endemic | Info | |
| Marpissa nivoyi (Lucas, 1846) | It / Sic | Info | ||
| Callilepis nocturna (Linnaeus, 1758) | It / Sic | Info | ||
| Lepthyphantes nodifer Simon, 1884 | It | Info | ||
| Lepthyphantes notabilis Kulczynski, 1887 | It | Info | ||
| Walckenaeria nudipalpis (Westring, 1851) | It | Info | ||
| Zelotes oblongus (C.L. Koch, 1833) | It | Info | ||
| Tibellus oblongus (Walckenaer, 1802) | It / Sard | Info | ||
| Heriaeus oblongus Simon, 1918 | It | Info | ||
| Cnephalocotes obscurus (Blackwall, 1834) | It | Info | ||
| Walckenaeria obtusa Blackwall, 1836 | It | Info | ||
| Tetragnatha obtusa C.L. Koch, 1837 | It / Sic | Info | ||
| Amaurobius obustus L. Koch, 1868 | It | Info | ||
| Gnaphosa occidentalis Simon, 1878 | It | Info | ||
| Cyclosa oculata (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Thomisus onustus Walckenaer, 1805 | It / Sard / Sic | Info | ||
| Pholcus opilionoides (Schrank, 1781) | It / Sard | Info | ||
| Araniella opisthographa (Kulczynski, 1905) | It / Sic | Info | ||
| Pardosa oreophila Simon, 1937 | It | Info | ||
| Agyneta orites (Thorell, 1875) | It | Endemic | Info | |
| Enoplognatha ovata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Centromerus pabulator (O. Pickard-Cambridge, 1875) | It | Info | ||
| Tegenaria pagana C.L. Koch, 1840 | It / Sard / Sic | Info | ||
| Asthenargus paganus (Simon, 1884) | It | Info | ||
| Tapinocyba pallens (O. Pickard-Cambridge, 1873) | It | Info | ||
| Clubiona pallidula (Clerck, 1757) | It / Sard | Info | ||
| Porrhomma pallidum Jackson, 1913 | It | Info | ||
| Palliduphantes pallidus (O. Pickard-Cambridge, 1871) | It | Info | ||
| Pardosa palustris (Linnaeus, 1758) | It | Info | ||
| Trabea paradoxa Simon, 1876 | It / Sard / Sic | Info | ||
| Gonatium paradoxum (L. Koch, 1869) | It | Info | ||
| Hyptiotes paradoxus (C.L. Koch, 1834) | It / Sard / Sic | Info | ||
| Pelecopsis parallela (Wider, 1834) | It | Info | ||
| Zora parallela Simon, 1878 | It | Info | ||
| Thyreosthenius parasiticus (Westring, 1851) | It | Info | ||
| Zora pardalis Simon, 1878 | It | Info | ||
| Tegenaria parietina (Fourcroy, 1785) | It / Sard / Sic | Info | ||
| Larinioides patagiatus (Clerck, 1757) | It / Sard | Info | ||
| Heliophanus patagiatus Thorell, 1875 | It | Info | ||
| Argenna patula (Simon, 1874) | It / Sard / Sic | Info | ||
| Staveleya paulae (Simon, 1918) | It | Info | ||
| Alioranus pauper (Simon, 1881) | It | Info | ||
| Orchestina pavesii (Simon, 1873) | It / Sard | Info | ||
| Troglohyphantes pavesii Pesarini, 1988 | It | Italian Endemic | Info | |
| Acantholycosa pedestris (Simon, 1876) | It | Endemic | Info | |
| Trachyzelotes pedestris (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Cheiracanthium pelasgicum (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Moebelia penicillata (Westring, 1851) | It | Info | ||
| Attulus penicillatus (Simon, 1875) | It | Info | ||
| Cheiracanthium pennatum Simon, 1878 | It | Info | ||
| Cheiracanthium pennyi O. Pickard-Cambridge, 1873 | It / Sard | Info | ||
| Asthenargus perforatus Schenkel, 1929 | It | Info | ||
| Arctosa perita (Latreille, 1799) | It / Sard / Sic | Info | ||
| Arctosa personata (L. Koch, 1872) | It / Sard | Info | ||
| Theridion petraeum L. Koch, 1872 | It | 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 | ||
| Pholcus phalangioides (Fuesslin, 1775) | It / Sard / Sic | Info | ||
| Asagena phalerata (Panzer, 1801) | It / Sard / Sic | Info | ||
| Clubiona phragmitis C.L. Koch, 1843 | It / Sard | Info | ||
| Pityohyphantes phrygianus (C.L. Koch, 1836) | It / Sard | Info | ||
| Atypus piceus (Sulzer, 1776) | It | Info | ||
| Diplocephalus picinus (Blackwall, 1841) | It | Info | ||
| Coelotes pickardi tirolensis (Kulczynski, 1906) | It | Endemic | Info | |
| Theridion pictum (Walckenaer, 1802) | It / Sic | Info | ||
| Tmarus piger (Walckenaer, 1802) | It | Info | ||
| Scotargus pilosus Simon, 1913 | It | Info | ||
| Theridion pinastri L. Koch, 1872 | It / Sard / Sic | Info | ||
| Pirata piraticus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Trichoncoides piscator (Simon, 1884) | It | Info | ||
| Pirata piscatorius (Clerck, 1757) | It / Sard | Info | ||
| Dolomedes plantarius (Clerck, 1757) | It / Sard | Info | ||
| Holocnemus pluchei (Scopoli, 1763) | It / Sard / Sic | Info | ||
| Berlandina plumalis (O. Pickard-Cambridge, 1872) | It / Sic | Info | ||
| Marpissa pomatia (Walckenaer, 1802) | It / Sard | Info | ||
| Drassyllus praeficus (L. Koch, 1866) | It / Sic | Info | ||
| Ozyptila praticola (C.L. Koch, 1837) | It / Sard | Info | ||
| Pardosa prativaga (L. Koch, 1870) | It / Sard | Info | ||
| Dysdera pristiphora Pesarini, 2001 | It | Italian Endemic | Info | |
| Cercidia prominens (Westring, 1851) | It / Sard | Info | ||
| Metopobactrus prominulus (O. Pickard-Cambridge, 1873) | It | Info | ||
| Lasaeola prona (Menge, 1868) | It | Info | ||
| Pardosa proxima (C.L. Koch, 1847) | It / Sard / Sic | Info | ||
| Agroeca proxima (O. Pickard-Cambridge, 1871) | It | Info | ||
| Drassodes pubescens (Thorell, 1856) | It / Sic | Info | ||
| Attulus pubescens (Fabricius, 1775) | It / Sard / Sic | Info | ||
| Nigma puella (Simon, 1870) | It / Sard / Sic | Info | ||
| Pulchellodromus pulchellus (Lucas, 1846) | It / Sard | Info | ||
| Micaria pulicaria (Sundevall, 1831) | It / Sard | Info | ||
| Pardosa pullata (Clerck, 1757) | It / Sard | Info | ||
| Alopecosa pulverulenta (Clerck, 1757) | It / Sard / Sic | Info | ||
| Pocadicnemis pumila (Blackwall, 1841) | It | Info | ||
| Drassyllus pumilus (C.L. Koch, 1839) | It / Sic | Info | ||
| Lophomma punctatum (Blackwall, 1841) | It | Info | ||
| Cheiracanthium punctorium (Villers, 1789) | It / Sard | 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 | ||
| Zodarion pusio Simon, 1914 | It / Sard / Sic | Info | ||
| Hypsosinga pygmaea (Sundevall, 1831) | It / Sard / Sic | Info | ||
| Porrhomma pygmaeum (Blackwall, 1834) | It | Info | ||
| Araneus quadratus Clerck, 1757 | It / Sard | Info | ||
| Titanoeca quadriguttata (Hahn, 1833) | It | Info | ||
| Euryopis quinqueguttata Thorell, 1875 | It / Sic | Info | ||
| Mizaga racovitzai (Fage, 1909) | It / Sic | Info | ||
| Hogna radiata (Latreille, 1817) | It / Sard / Sic | Info | ||
| Marpissa radiata (Grube, 1859) | It | Info | ||
| Pelecopsis radicicola (L. Koch, 1872) | It | Info | ||
| Sauron rayi (Simon, 1881) | It | Info | ||
| Metatrachelas rayi (Simon, 1878) | It / Sard | Info | ||
| Clubiona reclusa O. Pickard-Cambridge, 1863 | It | Info | ||
| Agalenatea redii (Scopoli, 1763) | It / Sard / Sic | Info | ||
| Arctosa renidescens Buchar & Thaler, 1995 | It | Endemic | Info | |
| Agyneta ressli (Wunderlich, 1973) | It | Info | ||
| Sintula retroversus (O. Pickard-Cambridge, 1875) | It / Sard | Info | ||
| Oedothorax retusus (Westring, 1851) | It | Info | ||
| Silometopus reussi (Thorell, 1871) | It | Info | ||
| Cryptachaea riparia (Blackwall, 1834) | It / Sard | Info | ||
| Pardosa riparia (C.L. Koch, 1833) | It | Info | ||
| Trochosa robusta (Simon, 1876) | It | Info | ||
| Leptorhoptrum robustum (Westring, 1851) | It | Info | ||
| Bassaniodes robustus (Hahn, 1832) | It | Info | ||
| Styloctetor romanus (O. Pickard-Cambridge, 1873) | It | Info | ||
| Silometopus rosemariae Wunderlich, 1969 | It | Info | ||
| Porrhomma rosenhaueri (L. Koch, 1872) | It | Info | ||
| Mansuphantes rossii (Caporiacco, 1927) | It | Italian Endemic | Info | |
| Gonatium rubellum (Blackwall, 1841) | It | Info | ||
| Gonatium rubens (Blackwall, 1833) | It | Info | ||
| Zodarion rubidum Simon, 1914 | It | Info | ||
| Hygrolycosa rubrofasciata (Ohlert, 1865) | It | Info | ||
| Loxosceles rufescens (Dufour, 1820) | It / Sard / Sic | Info | ||
| Troglohyphantes ruffoi Caporiacco, 1936 | It | Italian Endemic | Info | |
| Amaurobius ruffoi Thaler, 1990 | It | Italian Endemic | Info | |
| Euophrys rufibarbis (Simon, 1868) | It / Sard / Sic | Info | ||
| Macrargus rufus (Wider, 1834) | It | Info | ||
| Philodromus rufus Walckenaer, 1826 | It / Sard / Sic | Info | ||
| Liocranum rupicola (Walckenaer, 1830) | It / Sard | Info | ||
| Agyneta rurestris (C.L. Koch, 1836) | It / Sic | Info | ||
| Trochosa ruricola (De Geer, 1778) | It / Sard / Sic | Info | ||
| Urozelotes rusticus (L. Koch, 1872) | It / Sard / Sic | Introduced | Info | |
| Anyphaena sabina L. Koch, 1866 | It / Sard / Sic | Info | ||
| Pardosa saltans Töpfer-Hofmann, 2000 | It | Info | ||
| Ozyptila sanctuaria (O. Pickard-Cambridge, 1871) | It / Sard / Sic | Info | ||
| Hypsosinga sanguinea (C.L. Koch, 1844) | It / Sard / Sic | Info | ||
| Nematogmus sanguinolentus (Walckenaer, 1841) | It / Sard | Info | ||
| Trichoncus saxicola (O. Pickard-Cambridge, 1861) | It | Info | ||
| Troglohyphantes sbordonii Brignoli, 1975 | It | Endemic | Info | |
| Crustulina scabripes Simon, 1881 | It / Sard / Sic | Info | ||
| Salticus scenicus (Clerck, 1757) | It / Sard / Sic | Info | ||
| Callilepis schuszteri (Herman, 1879) | It | Info | ||
| Larinioides sclopetarius (Clerck, 1757) | It / Sic | Info | ||
| Amaurobius scopolii Thorell, 1871 | It | Endemic | Info | |
| Trichoncus scrofa Simon, 1884 | It | Info | ||
| Acartauchenius scurrilis (O. Pickard-Cambridge, 1873) | It | Info | ||
| Scotophaeus scutulatus (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Psammitis secedens (L. Koch, 1876) | It | Info | ||
| Metellina segmentata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Centromerus sellarius (Simon, 1884) | It | Info | ||
| Centromerus semiater (L. Koch, 1879) | It | Info | ||
| Singa semiatra L. Koch, 1867 | It / Sic | Info | ||
| Menemerus semilimbatus (Hahn, 1829) | It / Sard / Sic | Info | ||
| Spermophora senoculata (Dugès, 1836) | It / Sard / Sic | Introduced | Info | |
| Segestria senoculata (Linnaeus, 1758) | It / Sard / Sic | Info | ||
| Centromerus serratus (O. Pickard-Cambridge, 1875) | It / Sic | Info | ||
| Glyptogona sextuberculata (Keyserling, 1863) | It | Info | ||
| Haplodrassus signifer (C.L. Koch, 1839) | It / Sard / Sic | Info | ||
| Tegenaria silvestris L. Koch, 1872 | It | Info | ||
| Cryphoeca silvicola (C.L. Koch, 1834) | It | Info | ||
| Centromerus silvicola (Kulczynski, 1887) | It | Info | ||
| Simitidion simile (C.L. Koch, 1836) | It / Sard / Sic | Info | ||
| Bathyphantes similis Kulczynski, 1894 | It | Info | ||
| Clubiona similis L. Koch, 1867 | It | Info | ||
| Zelotes similis (Kulczynski, 1887) | It | Info | ||
| Arctosa similis Schenkel, 1938 | It / Sard / Sic | Info | ||
| Psilochorus simoni (Berland, 1911) | It / Sard | Introduced | Info | |
| Comaroma simoni Bertkau, 1889 | It | Info | ||
| Ozyptila simplex (O. Pickard-Cambridge, 1862) | It | Info | ||
| Agyneta simplicitarsis (Simon, 1884) | It | Info | ||
| Parasteatoda simulans (Thorell, 1875) | It | Info | ||
| Phylloneta sisyphia (Clerck, 1757) | It / Sard / Sic | Info | ||
| Drapetisca socialis (Sundevall, 1833) | It | Info | ||
| Coelotes solitarius L. Koch, 1868 | It | Info | ||
| Zoropsis spinimana (Dufour, 1820) | It / Sard / Sic | Info | ||
| Zora spinimana (Sundevall, 1833) | It / Sard | Info | ||
| Clubiona stagnatilis Kulczynski, 1897 | It | Info | ||
| Tmarus stellio Simon, 1875 | It | Info | ||
| Crustulina sticta (O. Pickard-Cambridge, 1861) | It | Info | ||
| Lathys stigmatisata (Menge, 1869) | It | Info | ||
| Liocranoeca striata (Kulczynski, 1882) | It | Info | ||
| Tetragnatha striata L. Koch, 1862 | It | Info | ||
| Leviellus stroemi (Thorell, 1870) | It | Info | ||
| Araneus sturmi (Hahn, 1831) | It | Info | ||
| Walckenaeria stylifrons (O. Pickard-Cambridge, 1875) | It / Sard | Info | ||
| Micrargus subaequalis (Westring, 1851) | It / Sard | Info | ||
| Centromerus subalpinus Lessert, 1907 | It | Info | ||
| Erigonella subelevata (L. Koch, 1869) | It | Info | ||
| Neoscona subfusca (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Icius subinermis Simon, 1937 | It / Sard / Sic | Info | ||
| Microctenonyx subitaneus (O. Pickard-Cambridge, 1875) | It / Sard | Info | ||
| Argenna subnigra (O. Pickard-Cambridge, 1861) | It | Info | ||
| Micaria subopaca Westring, 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 | ||
| Larinioides suspicax (O. Pickard-Cambridge, 1876) | It / Sard / Sic | Info | ||
| Centromerus sylvaticus (Blackwall, 1841) | It | Info | ||
| Alopecosa taeniata (C.L. Koch, 1835) | It | Info | ||
| Menemerus taeniatus (L. Koch, 1867) | It / Sic | Info | ||
| Zelotes talpinus (L. Koch, 1872) | It | Info | ||
| Sibianor tantulus (Simon, 1868) | It | Info | ||
| Lycosa tarantula (Linnaeus, 1758) | It / Sard / Sic | Info | ||
| Tenuiphantes tenebricola (Wider, 1834) | It / Sard | Info | ||
| Tenuiphantes tenuis (Blackwall, 1852) | It / Sard / Sic | Info | ||
| Zelotes tenuis (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Mesiotelus tenuissimus (L. Koch, 1866) | It / Sard / Sic | Info | ||
| Pirata tenuitarsis Simon, 1876 | It / Sard | Info | ||
| Parasteatoda tepidariorum (C.L. Koch, 1841) | It / Sard | Introduced | Info | |
| Pachygnatha terilis Thaler, 1991 | It | Info | ||
| Clubiona terrestris Westring, 1851 | It / Sard / Sic | Info | ||
| Trochosa terricola Thorell, 1856 | It / Sard / Sic | Info | ||
| Enoplognatha testacea Simon, 1884 | It / Sard | Info | ||
| Cybaeus tetricus (C.L. Koch, 1839) | It | Info | ||
| Harpactea thaleri Alicata, 1966 | It | Endemic | Info | |
| Scytodes thoracica (Latreille, 1802) | It / Sard / Sic | Info | ||
| Enoplognatha thoracica (Hahn, 1833) | It / Sard / Sic | Info | ||
| Labulla thoracica (Wider, 1834) | It | Info | ||
| Trichopternoides thorelli (Westring, 1861) | It | Info | ||
| Leviellus thorelli (Ausserer, 1871) | It | Info | ||
| Platnickina tincta (Walckenaer, 1802) | It / Sard / Sic | Info | ||
| Histopona torpida (C.L. Koch, 1837) | It | Info | ||
| Pardosa torrentum Simon, 1876 | It | Info | ||
| Alopecosa trabalis (Clerck, 1757) | It | Info | ||
| Latrodectus tredecimguttatus (Rossi, 1790) | It / Sard / Sic | 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 | ||
| Ebrechtella tricuspidata (Fabricius, 1775) | It | Info | ||
| Tegenaria tridentina L. Koch, 1872 | It | Endemic | Info | |
| Aphantaulax trifasciata trifasciata (O. Pickard-Cambridge, 1872) | It / Sard / Sic | Info | ||
| Araneus triguttatus (Fabricius, 1775) | It / Sic | Info | ||
| Mermessus trilobatus (Emerton, 1882) | It | Introduced | Info | |
| Clubiona trivialis C.L. Koch, 1843 | It | Info | ||
| Episinus truncatus Latreille, 1809 | It / Sard / Sic | Info | ||
| Pistius truncatus (Pallas, 1772) | It / Sard / Sic | Info | ||
| Robertus truncorum (L. Koch, 1872) | It | Info | ||
| Ozyptila trux (Blackwall, 1846) | It | Info | ||
| Gibbaranea ullrichi (Hahn, 1835) | It | Info | ||
| Xysticus ulmi (Hahn, 1831) | It | Info | ||
| Nuctenea umbratica (Clerck, 1757) | It / Sic | Info | ||
| Salticus unciger (Simon, 1868) | It / Sic | Info | ||
| Robertus ungulatus Vogelsanger, 1944 | 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 | ||
| Scotophaeus validus (Lucas, 1846) | It / Sard / Sic | Info | ||
| Mughiphantes variabilis (Kulczynski, 1887) | It | Endemic | Info | |
| Arctosa variana C.L. Koch, 1847 | It / Sard / Sic | Info | ||
| Theridion varians varians Hahn, 1833 | It / Sard / Sic | Info | ||
| Misumena vatia (Clerck, 1757) | It / Sard / Sic | Info | ||
| Scytodes velutina Heineken & Lowe, 1832 | It / Sard / Sic | Info | ||
| Synageles venator (Lucas, 1836) | It / Sard / Sic | Info | ||
| Microneta viaria (Blackwall, 1841) | It / Sard | Info | ||
| Brigittea vicina (Simon, 1873) | It | Info | ||
| Walckenaeria vigilax (Blackwall, 1853) | It | Info | ||
| Drassyllus villicus (Thorell, 1875) | It | Info | ||
| Drassodes villosus (Thorell, 1856) | It | Info | ||
| Tallusia vindobonensis (Kulczynski, 1898) | It | Info | ||
| Cheiracanthium virescens (Sundevall, 1833) | It | Info | ||
| Micrommata virescens (Clerck, 1757) | It / Sard | Info | ||
| Pardosa vittata (Keyserling, 1863) | It | Info | ||
| Gongylidiellum vivum (O. Pickard-Cambridge, 1875) | It / Sic | Info | ||
| Pardosa wagleri (Hahn, 1822) | It | Info | ||
| Uloborus walckenaerius Latreille, 1806 | It / Sard / Sic | Info | ||
| Zygiella x-notata (Clerck, 1757) | It / Sard / Sic | Info | ||
| Carrhotus xanthogramma (Latreille, 1819) | It / Sard | Info | ||
| Troglohyphantes zanoni Pesarini, 1988 | It | Italian Endemic | Info | |
| Salticus zebraneus (C.L. Koch, 1837) | It / Sard / Sic | Info | ||
| Tenuiphantes zimmermanni (Bertkau, 1890) | It / Sard | Info | ||
| Attulus zimmermanni (Simon, 1877) | It / Sic | Info | ||
| Canariphantes zonatus (Simon, 1884) | It / Sard / Sic | Info |