Finnish Arachnids list (Scientific names)

Arachnoida group is still in its infancy at my site, only very few taxons from thereand there is listed.

Opiliones (Arachnida)

Leiobunum
- rupestre

Phalangium
- opilio

Mitopus
- morio

Nemastoma
- lugubre

Araneida (Arachnida)

Amaurobiidae
- Amaurobius
  - fenestralis (Stroem, 1768)

Dictynidae
- Dictyna
  - arundinacea (Linnaeus, 1758)
  - pusilla Thorell, 1856
- Mastigusa
  - arietina (Thorell, 1871)

Segestriidae
- Segestria
  - senoculata (Linnaeus, 1758)

Gnaphosidae
- Drassodes
  - lapidosus (Walckenaer, 1802)
  - pubescens (Thorell, 1856)
- Drassyllus
  - praeficus (L. Koch, 1866)
  - pusillus (C. L. Koch, 1833)
- Haplodrassus
  - cognatus (Westring, 1861)
  - moderatus (Kulczynski, 1897)
  - signifer (C. L. Koch, 1839)
  - silvestris (Blackwall, 1833)
  - soerenseni (Strand, 1900)
- Zelotes
  - clivicola (L. Koch, 1870)
  - latreillei (Simon, 1878)
  - petrensis (C. L. Koch, 1839)
  - subterraneus (C. L. Koch, 1833)
- Gnaphosa
  - bicolor (Hahn, 1833)
  - microps Holm, 1939
  - montana (L. Koch, 1866)
- Micaria
  - aenea Thorell, 1871
  - pulicaria (Sundevall, 1832)
  - silesiaca L. Koch, 1875

Clubionidae
- Clubiona
  - caerulescens L. Koch, 1867
  - kulczynskii Lessert, 1905
  - lutescens Westring, 1851
  - neglecta O. P.-Cambridge, 1862
  - subsultans Thorell, 1875
  - subtilis L. Koch, 1867
  - trivialis C. L. Koch, 1843
- Agroeca
  - brunnea (Blackwall, 1833)
  - proxima (O. P.-Cambridge, 1871)
- Phrurolithus
  - festivus (C. L. Koch, 1835)

Zoridae
- Zora
  - nemoralis (Blackwall, 1861)
  - spinimana (Sundevall, 1832)

Heteropodidae
- Micrommata
  - virescens (Clerck, 1757)

Thomisidae
- Diaea
  - dorsata (Fabricius, 1777)
- Misumena
  - vatia (Clerck, 1757)
- Xysticus
  - audax (Schrank, 1803)
  - bifasciatus C. L. Koch, 1837
  - cristatus (Clerck, 1767)
  - lineatus (Westring, 1851)
  - luctuosus (Blackwall, 1831)
  - obscurus Collett, 1877
  - sabulosus (Hahn, 1831)
  - ulmi (Hahn, 1831)
- Ozyptila
  - atomaria (Panzer, 1801)
  - praticola (C. L. Koch, 1837)
  - trux (Blackwall, 1846)

Philodromidae
- Thanatus
  - formicinus (Clerck, 1757)
- Tibellus
  - oblongus (Walckenaer, 1802)

Salticidae
- Salticus
  - cingulatus (Panzer, 1797)
  - scenicus (Clerck, 1757)
- Heliophanus
  - dampfi Schenkel, 1923
  - dubius (C. L. Koch, 1835)
- Bianor
  - aurocinctus (Ohlert, 1865)
- Neon
  - reticulatus (Blackwall, 1853)
- Euophrys
  - frontalis (Walkenaer, 1802)
- Pseudeuophrys
  - erratica (Walckenaer, 1826)
- Sitticus
  - caricis (Westring, 1861)
- Evarcha
  - arcuata (Clerck, 1757)
  - falcata (Clerck, 1757)
- Pellenes
  - lapponicus (Sundevall, 1833)

Lycosidae
- Acantholycosa
  - lignaria (Clerck, 1757)
- Pardosa
  - amentata (Clerck, 1757)
  - fulvipes (Collett, 1876)
  - hyperborea (Thorell, 1872)
  - lugubris (Walckenaer, 1802)
  - paludicola (Clerck, 1757)
  - palustris (Linnaeus, 1758)
  - pullata (Clerck, 1757)
  - riparia (C. L. Koch, 1833)
  - schenkeli Lessert, 1904
  - sphagnicola (Dahl, 1908)
- Alopecosa
  - aculeata (Clerck, 1757)
  - inquilina (Clerck, 1758)
  - pinetorum (Thorell, 1856)
  - pulverulenta (Clerck, 1757)
  - taeniata (C. L. Koch, 1835)
- Trochosa
  - ruricola (Degeer, 1778)
  - spinipalpis (F. O. P.-Cambridge, 1895)
  - terricola Thorell, 1856
- Pirata
  - hygrophilus Thorell, 1872
  - piraticus (Clerck, 1757)
  - uliginosus (Thorell, 1856)

Pisauridae
- Pisaura
  - mirabilis (Clerck, 1757)

Dolomedidae
- Dolomedes
  - fimbriatus (Clerck, 1757)

Argyronetidae
- Argyroneta
  - aquatica (Clerck, 1757)

Agelenidae
- Agelena
  - labyrinthica (Clerck, 1757)
- Tegenaria
  - atrica C. L. Koch, 1843
  - domestica (Clerck, 1757)

Hahniidae
- Cryphoeca
  - silvicola (C. L. Koch, 1834)
- Hahnia
  - nava (Blackwall, 1841)
  - ononidum Simon, 1875
  - pusilla C. L. Koch, 1841

Mimetidae
- Ero
  - furcata (Villers, 1789)

Theridiidae
- Episinus
  - angulatus (Blackwall, 1836)
- Euryopis
  - flavomaculata (C. L. Koch, 1836)
- Dipoena
  - torva (Thorell, 1875)
- Lasaeola
  - tristis (Hahn, 1833)
- Crustulina
  - guttata (Wider, 1834)
- Steatoda
  - bipunctata (Linnaeus, 1758)
  - phalerata (Panzer, 1801)
- Theridion
  - mystaceum L. Koch, 1870
  - sisyphium (Clerck, 1757)
- Neottiura
  - bimaculata Linnaeus, 1767²
- Enoplognatha
  - ovata (Clerck, 1757)
- Robertus
  - arundineti (O. P.-Cambridge, 1871)
  - lividus (Blackwall, 1836)
  - lyrifer Holm, 1939
  - scoticus Jackson, 1914

Tetragnathidae
- Meta
  - mengei (Blackwall, 1869)
  - merianae (Scopoli, 1763)
  - segmentata (Clerck, 1757)

Araneidae
- Gibbaranea
  - omoeda (Thorell, 1870)
- Araneus
  - diadematus Clerck, 1757
  - nordmanni (Thorell, 1870)
  - quadratus Clerck, 1757
  - sturmi (Hahn, 1831)
- Araniella
  - cucurbitina (Clerck, 1757)
- Hypsosinga
  - sanguinea (Koch, 1844)
- Zygiella
  - stroemi (Thorell, 1870)
- Cyclosa
  - conica (Pallas, 1772)

Linyphiidae
- Ceratinella
  - brevis (Wider, 1834)
  - scabrosa (O. P.-Cambridge, 1871)
- Walckenaeria
  - antica (Wider, 1834)
  - atrotibialis (O. P.-Cambridge, 1878)
  - cucullata (C. L. Koch, 1836)
  - cuspidata Blackwall, 1833
  - dysderoides (Wider, 1834)
  - karpinskii (O. P.-Cambridge, 1873)
  - nudipalpis (Westring, 1851)
  - obtusa Blackwall, 1836
  - unicornis O. P.-Cambridge, 1861
  - vigilax (Blackwall, 1853)
- Dicymbium
  - tibiale (Blackwall, 1836)
- Entelecara
  - congenera (O. P.-Cambridge, 1879)
  - erythropus (Westring, 1851)
- Moebelia
  - penicillata (Westring, 1851)
- Gongylidium
  - rufipes (Linnaeus, 1758)
- Dismodicus
  - bifrons (Blackwall, 1841)
  - elevatus (C. L. Koch, 1838)
- Gonatium
  - rubellum (Blackwall, 1841)
- Maso
  - sundevalli (Westring, 1851)
- Peponocranium
  - praeceps Miller, 1943
- Oedothorax
  - apicatus (Blackwall, 1850)
  - gibbosus (Blackwall, 1841)
  - retusus (Westring, 1851)
- Pelecopsis
  - elongata (Wider, 1834)
  - mengei (Simon, 1884)
- Silometopus
  - incurvatus (O. P.-Cambridge, 1873)
  - reussi (Thorell, 1871)
- Cnephalocotes
  - obscurus (Blackwall, 1834)
- Tiso
  - vagans (Blackwall, 1834)
- Troxochrus
  - nasutus Schenkel, 1925
  - scabriculus (Cambridge, 1871)
- Minyriolus
  - pusillus (Wider, 1834)
- Tapinocyba
  - insecta (L. Koch, 1869)
  - pallens (O. P.-Cambridge, 1872)
- Thyreosthenius
  - biovatus (O. P.-Cambridge, 1875)
  - parasiticus (Westring, 1851)
- Lophomma
  - punctatum (Blackwall, 1841)
- Gongylidiellum
  - latebricola (O. P.-Cambridge, 1871)
  - murcidum Simon, 1884
- Micrargus
  - apertus (O. P.-Cambridge, 1871)
  - herbigradus (Blackwall, 1854)
- Erigonella
  - hiemalis (Blackwall, 1841)
- Savignia
  - frontata (Blackwall, 1833)
- Diplocentria
  - bidentata (Emerton, 1882)
  - rectangulata (Emerton, 1915)
- Diplocephalus
  - latifrons (O. P.-Cambridge, 1863)
  - picinus (Blackwall, 1841)
- Erigone
  - atra (Blackwall, 1833)
  - dentipalpis (Wider, 1834)
- Hilaira
  - herniosa (Thorell, 1875)
- Asthenargus
  - paganus (Simon, 1884)
- Porrhomma
  - campbelli F. O. P-Cambridge, 1894
  - pallidum Jackson, 1930
  - pygmaeum (Blackwall, 1834)
- Agyneta
  - cauta (O. P.-Cambridge, 1902)
  - conigera (O. P.-Cambridge, 1853)
  - olivacea (Emerton, 1882)
  - ramosa Jackson, 1912
  - subtilis (O. P.-Cambridge, 1863)
- Meioneta
  - affinis (Kulczynski, 1898)
  - gulosa (L. Koch, 1869)
  - rurestris (C. L. Koch, 1836)
- Microneta
  - viaria (Blackwall, 1841)
- Maro
  - lehtineni Saaristo, 1971
  - lepidus Casemir, 1961
  - sublestus Falconer, 1915
- Centromerus
  - arcanus (Cambridge, 1873)
  - sylvaticus (Blackwall, 1841)
- Tallusia
  - experta (O. P.-Cambridge, 1871)
- Macrargus
  - boreus Holm, 1968
  - carpenteri (O. P.-Cambridge, 1894)
  - multesimus (O. P.-Cambridge, 1875)
- Bathyphantes
  - gracilis (Blackwall, 1841)
  - nigrinus (Westring, 1851)
  - parvulus (Westring, 1851)
- Diplostyla
  - concolor (Wider, 1834)
- Poeciloneta
  - variegata (Blackwall, 1841)
- Drapetisca
  - socialis (Sundevall, 1833)
- Tapinopa
  - longidens (Wider, 1834)
- Stemonyphantes
  - lineatus (Linnaeus, 1758)
- Bolephthyphantes
  - index (Thorell, 1856)
- Bolyphantes
  - alticeps (Sundevall, 1833)
  - luteolus (Blackwall, 1833)
- Incestophantes
  - kochiellus (Strand, 1900)
- Lepthyphantes
  - antroniensis Schenkel, 1933
- Tenuiphantes
  - alacris (Blackwall, 1853)
  - cristatus (Menge, 1866)
  - mengei (Kulczynski, 1887)
  - tenebricola (Wider, 1834)
- Agnyphantes
  - expunctus (O. P-Campbridge, 1875)
- Anguliphantes
  - angulipalpis (Westring, 1851)
- Helophora
  - insignis (Blackwall, 1841)
- Pityohyphantes
  - phrygianus (C. L. Koch, 1836)
- Linyphia
  - triangularis (Clerck, 1757)
- Neriene
  - clathrata (Sundevall, 1830)
  - montana (Clerck, 1757)
  - peltata (Wider, 1834)
  - radiata (Walcknenaer, 1842)
- Microlinyphia
  - pusilla (Sundevall, 1830)
- Allomengea
  - scopigera (Grube, 1859)
- Kikimora Eskov, 1988
  - palustris Eskov, 1988
- Abacoproeces
  - saltuum (L. Koch, 1872)
- Minicia
  - marginella (Wider, 1834)
- Obscuriphantes
  - obscurus (Blackwall, 1841)
- Oreonetides
  - vaginatus (Thorell, 1872)
- Oryphantes
  - angulatus (O. P.-Cambridge, 1881)
- Palliduphantes
  - pallidus (O. P.-Cambridge, 1871)
- Scotinotylus
  - evansi (O. P-Cambridge, 1894)
- Semljicola
  - faustus (O. P-Cambridge, 1900)
  - latus (Holm, 1939)
- Sisicus
  - apertus (Holm, 1939)
- Tibioploides
  - arcuatus (Tullgren, 1955)
- Tibioplus
  - diversus (L. Koch, 1879)
- Zornella
  - cultrigera (L. Koch, 1879)

References:

[²]: This may require parentheses or not (original genus not verified)

Markku Savela