List of arachnids of Ireland
There are approximately 1,107 species of arachnid native to Ireland. This page lists them, but is not up to date for all taxa.
Arachnids are eight-legged chelicerate arthropods with pedipalps and bodies divided into two tagmata.
The most best known and familiar group in Ireland is the spiders, and there are also several species of harvestman, ticks, mites and pseudoscorpions. Arachnid groups absent from Ireland include true scorpions, whip scorpions, solifuges, cave spiders, microwhip scorpions, hooded tick spiders and tarantulas.
Subclass [Dromopoda]
Order [Opiliones] (harvestmen / daddy-long-legs)
15 native species and three species which are not considered to be native: Odiella spinosus, Opilio parietinus and ''Dicranopalpus ramosus''Family [Nemastomatidae]
- Mitostoma chrysomelas
- ''Nemastoma lugubre bimaculatum''
Family [Phalangiidae]
- Dicranopalpus ramosus
- Lacinius ephippiatus
- Megabunus diadema
- Mitopus morio
- Oligolophus hanseni
- Oligolophus tridens
- Opilio parietinus
- Opilio saxatilis
- Paroligolophus agrestis
- Phalangium opilio
- ''Rilaena triangularis''
Family [Sclerosomatidae]
- Leiobunum blackwalli
- Leiobunum rotundum
- ''Nelima gothica''
Family [Trogulidae]
- ''Anelasmocephalus cambridgei''
Order [Pseudoscorpionida] (false scorpions)
Family [Cheiridiidae]
- ''Cheiridium museorum''
Family [Cheliferidae]
- House pseudoscorpion
Family [Chernetidae]
- Allochernes powelli
- Dinocheirus panzeri
- Lamprochernes nodosus
- Lamprochernes savignyi
- Pselaphochernes dubius
- ''Pselaphochernes scorpioides''
Family [Chthonidae]
- ''Kewochthonius halberti''
Family [Chthoniidae]
- Chthonius ischnochele
- Chthonius orthodactylus
- ''Chthonius tetrachelatus ''
Family [Neobisiidae]
- Neobisium carcinoides
- Neobisium carpenteri
- Neobisium maritimum
- Roncocreagris cambridgei
- ''Roncus lubricus''
Subclass [Acari] (ticks and mites)
Order [Ixodida] (ticks)
Family [Ixodidae]
10 species- Dermacentor reticulatus
- Castor bean tick
Family [Argasidae] (soft ticks)
Order [Prostigmata] (sucking true mites)
249 speciesFamily [Alycidae]
4 speciesFamily [Arrenuridae]
5 speciesFamily [Bdellidae]
5 speciesFamily [Ereynetidae]
1 speciesFamily [Eriophyidae] (gall mites)
52 species- Aceria cephalonea
- Sycamore felt gall mite
- Eriophyes exilis
- Eriophyes laevis
- Eriophyes macrorhynchus subsp. aceribus
- Eriophyes prunispinosae
- Eriophyes pyri
- Eriophyes similis
- Phyllocoptes goniothorax
- Phyllocoptes malinus
- Big bud gall mite
Family [Erythraeidae]
Family [Eupodidae]
2 speciesFamily [Eylaidae]
3 speciesFamily [Halacaridae] (marine mites)
44 species- ''Thalassarachna capuzina''
Family [Hydrodromidae]
2 species
Family [Hydryphantidae]
2 speciesFamily [Hygrobatidae]
6 speciesFamily [Lebertiidae]
11 speciesFamily [Limnesiidae]
2 speciesFamily [Meyerellidae]
3 speciesFamily [Microtrombidiidae]
4 speciesFamily [Mideidae]
1 speciesFamily [Mideopsidae]
1 speciesFamily [Nanorchestidae]
2 speciesFamily [Oxidae]
1 speciesFamily [Penthaleidae]
2 speciesFamily [Phytoptidae]
2 speciesFamily [Pionidae]
14 speciesFamily [Podothrombiidae]
1 speciesFamily [Rhagidiidae]
4 speciesFamily [Scutacaridae]
1 speciesFamily [Sperchontidae]
7 speciesFamily [Stigmaeidae]
3 speciesFamily [Tanaupodidae]
1 speciesFamily [Tarsonemidae]
14 speciesFamily [Tetranychidae]
6 speciesFamily [Teutoniidae]
1 speciesFamily [Torrenticolidae]
9 speciesFamily [Trombiculidae]
1 speciesFamily [Tydeidae]
15 speciesFamily [Unionicolidae]
6 speciesOrder [Sarcoptiformes] ([Clade])
Suborder [Oribatida] (moss mites / beetle mites)
173 species have been identified for the Republic of IrelandFamily [Achipteriidae]
4 speciesFamily [Adelphacaridae]
1 speciesFamily [Ameronothridae]
7 speciesFamily [Banksinomidae]
1 speciesFamily [Belbidae]
1 speciesFamily [Brachychthoniidae]
19 speciesFamily [Caleremaeidae]
1 speciesFamily [Camisiidae]
6 speciesFamily Cepheidae">Cepheidae (mite)">Cepheidae
3 speciesFamily [Cosmochthoniidae]
1 speciesFamily [Euphthiracaridae]
1speciesFamily [Euzetidae]
2 speciesFamily [Hermanniidae]
7 speciesFamily [Hypochthoniidae]
2 speciesFamily [Liodidae]
1 speciesFamily [Malaconothridae]
6 speciesFamily [Mycobatidae]
4 speciesFamily [Nanhermanniidae]
4 speciesFamily [Nothridae]
2 speciesFamily [Perlohmanniidae]
1 speciesFamily [Phthiracaridae]
4 species- ''Phthiracarus affinis''
Suborder [Brachypylina]
Family [Carabodidae]
5 speciesFamily [Ceratozetidae]
12 speciesFamily [Chamobatidae]
4 speciesFamily [Ctenobelbidae]
1 speciesFamily [Cymbaeremaeidae]
1 speciesFamily [Damaeidae]
3 species- ''Belba corynopus''
Family [Eremaeidae]
Family [Galumnidae]
2 speciesFamily [Haplozetidae]
1 speciesFamily [Humerobatidae]
1 speciesFamily [Hydrozetidae]
1 speciesFamily [Liacaridae]
4 speciesFamily [Limnozetidae]
2 speciesFamily [Metrioppiidae]
1 speciesFamily [Micreremidae]
1 speciesFamily [Neoliodidae]
1 speciesFamily [Oppiidae]
16 speciesFamily [Oribatellidae]
3 speciesFamily [Oribatulidae]
7 speciesFamily [Passalozetidae]
1 speciesFamily [Phenopelopidae]
8 speciesFamily [Protoribatidae]
1 speciesFamily [Protoribatidae]
1 speciesFamily [Punctoribatidae]
1 speciesFamily [Quadroppiidae]
1 speciesFamily [Scheloribatidae]
2 speciesFamily [Scutoverticidae]
2 speciesFamily [Steganacaridae]
2 speciesFamily [Suctobelbidae]
6 speciesFamily [Tectocepheidae]
1 speciesFamily [Thyrisomidae]
2 speciesFamily [Xenillidae]
1 speciesSuborder [Astigmatina]
Order [Trombidiformes]
Family [Limnocharidae]
- ''Limnochares aquatica''
Family [Tarsonemidae] (thread-footed mites / white mites)
- Some species
Family [Trombidiidae] (red velvet mites)
- ''Trombidium holosericeum''
Order [Araneae] (spiders)
Family [Agelenidae] (funnel-web spiders)
- Agelena labyrinthica
- Cryphoeca silvicola
- Eratigena agrestis
- Giant house spider
- Malthonica pagana C.L. Koch, 1841
- Tegenaria domestica
- Tegenaria parietina
- Tegenaria silvestris
- ''Textrix denticulata''
Family [Amaurobiidae] (tangled nest spiders)
- Amaurobius fenestralis
- Amaurobius ferox
- ''Amaurobius similis''
Family [Anyphaenidae]
- ''Anyphaena accentuata''
Family [Araneidae] (typical orb-weavers)
- Agalenatea redii
- European garden spider
- Four-spot orbweaver
- Araneus sturmi
- Araneus triguttatus
- Cucumber green spider
- Araniella opisthographa
- Araniella displicata
- Atea triguttata
- Cyclosa conica
- Gibbaranea gibbosa
- Hypsosinga albovittata
- Hypsosinga pygmaea
- Furrow orb spider
- Larinioides patagiatus
- Larinioides sclopetarius
- Mangora acalypha
- Walnut orb-weaver spider
- Zygiella atrica
- Silver-sided sector spider
Family [Atypidae] (purseweb spiders)
- ''Atypus affinis''
Family [Cheiracanthiidae]
- Cheiracanthium erraticum
- ''Cheiracanthium virescens''
Family [Clubionidae] (sac spiders)
- Clubiona brevipes
- Clubiona comta
- Clubiona diversa
- Clubiona juvenis Simon, 1878
- Clubiona lutescens
- Clubiona neglecta
- Clubiona pallidula
- Clubiona phragmitis
- Clubiona reclusa
- Clubiona stagnatilis
- Clubiona subtilis
- Clubiona terrestris
- ''Clubiona trivialis''
Family [Cybaeidae]
- Diving bell spider
Family [Dictynidae]
- Argenna subnigra
- Dictyna arundinacea
- Dictyna latens
- Dictyna uncinata Thorell, 1856
- ''Nigma puella''
Family [Dysderidae] (woodlouse hunters)
- Woodlouse spider
- Dysdera erythrina
- ''Harpactea hombergi''
Family [Gnaphosidae] (flat-bellied ground spiders)
- Drassodes cupreus
- Drassodes lapidosus
- Drassyllus lutetianus
- Drassyllus pusillus
- Haplodrassus signifer
- Micaria pulicaria
- Scotophaeus blackwalli
- Zelotes apricorum
- Zelotes electus
- ''Zelotes latreillei''
Family [Hahniidae] (dwarf sheet spiders)
- Antistea elegans
- Hahnia helveola Simon, 1875
- Hahnia montana
- Hahnia nava
- ''Hahnia pusilla''
Family [Linyphiidae] (sheet weavers)
- Agyneta cauta
- Agyneta decora
- Agyneta conigera
- Agyneta olivacea
- Agyneta ramosa
- Agyneta subtilis
- Allomengea scopigera
- Allomengea vidua
- Aphileta misera
- Araeoncus crassiceps
- Araeoncus humilis
- Asthenargus paganus
- Baryphyma gowerense
- Baryphyma trifrons
- Bathyphantes approximatus
- Bathyphantes gracilis
- Bathyphantes nigrinus
- Bathyphantes parvulus
- Bathyphantes setiger F.O.P.-Cambridge, 1894
- Bolyphantes alticeps
- Bolyphantes luteolus
- Carorita limnaea
- Carorita paludosa Duffey, 1971
- Centromerita bicolor
- Centromerita concinna
- Centromerus arcanus
- Centromerus dilutus
- Centromerus levitarsis
- Centromerus prudens
- Ceratinella brevipes
- Ceratinella brevis
- Ceratinella scabrosa
- Centromerus persimilis
- Centromerus sylvaticus
- Cnephalocotes obscurus
- Collinsia inerrans
- Dicymbium brevisetosum Locket, 1962
- Dicymbium nigrum
- Dicymbium tibiale
- Diplocentria bidentata
- Diplocephalus cristatus
- Diplocephalus latifrons
- Diplocephalus permixtus
- Diplocephalus picinus
- Diplostyla concolor
- Dismodicus bifrons
- Donacochara speciosa
- Invisible spider
- Drepanotylus uncatus
- Entelecara errata O.P.-Cambridge, 1913
- Entelecara erythropus
- Entelecara media Kulczynski, 1887
- Entelecara omissa
- Erigone arctica
- Erigone atra
- Erigone dentipalpis
- Erigone longipalpis
- Erigone capra Simon, 1884
- Erigone promiscua
- Erigone welchi Jackson, 1911
- Erigonella hiemalis
- Erigonella ignobilis
- Evansia merens O.P.-Cambridge, 1900
- Floronia bucculenta
- Glyphesis cottonae
- Gnathonarium dentatum
- Gonatium rubellum
- Gonatium rubens
- Gongylidiellum latebricola
- Gongylidiellum murcidum Simon, 1884
- Gongylidiellum vivum
- Gongylidium rufipes
- Halorates reprobus
- Helophora insignis
- Hilaira excisa
- Hilaira frigida
- Hilaira pervicax Hull, 1908
- Hylyphantes graminicola
- Hypselistes jacksoni
- Hypomma bituberculatum
- Hypomma cornutum
- Hypomma fulvum Büsenberg, 1902
- Jacksonella falconeri
- Kaestneria dorsalis
- Kaestneria pullata
- Labulla thoracica
- Lepthyphantes alacris = Tenuiphantes
- Lepthyphantes angulatus = Oryphantes
- Lepthyphantes cristatus = Tenuiphantes
- Lepthyphantes ericaeus
- Lepthyphantes flavipes
- Lepthyphantes insignis O.P.-Cambridge, 1913 = Tenuiphantes
- Lepthyphantes mengei Kulczynski, 1887
- Lepthyphantes minutus
- Lepthyphantes nebulosus = Tenuiphantes
- Lepthyphantes obscurus = Centromerus
- Lepthyphantes pallidus = Tenuiphantes
- Lepthyphantes tenebricola = Tenuiphantes
- Lepthyphantes tenuis
- Lepthyphantes whymperi F.O.P.-Cambridge, 1894 = Tenuiphantes
- Lepthyphantes zimmermanni Bertkau, 1890 = Tenuiphantes
- Leptorhoptrum robustum
- Leptothrix hardyi
- Lessertia dentichelis
- Linyphia hortensis
- Linyphia triangularis
- Lophomma punctatum
- Macrargus rufus
- Maro minutus O.P.-Cambridge, 1906
- Maso sundevalli
- Mecopisthes peusi Wunderlich, 1972
- Meioneta beata
- Meioneta gulosa
- Meioneta innotabilis
- Meioneta mollis
- Meioneta mossica Schikora, 1993
- Meioneta rurestris
- Meioneta saxatilis sensu stricto
- Metopobactrus prominulus
- Micrargus herbigradus sensu stricto
- Micrargus subaequalis
- Microctenonyx subitaneus
- Microlinyphia impigra
- Microlinyphia pusilla
- Microneta viaria
- Minicia marginella
- Minyriolus pusillus
- Mioxena blanda
- Moebelia penicillata
- Monocephalus castaneipes
- Monocephalus fuscipes
- Neriene clathrata
- Neriene montana
- Neriene peltata
- Oedothorax agrestis
- Oedothorax apicatus
- Oedothorax fuscus
- Oedothorax gibbosus
- Oedothorax retusus
- Ostearius melanopygius
- Oreonetides vaginatus
- Pelecopsis mengei
- Pelecopsis nemoralis
- Pelecopsis parallela
- Pocadicnemis juncea Locket & Millidge, 1953
- Pocadicnemis pumila sensu stricto
- Poeciloneta variegata
- Porrhomma campbelli F.O.P.-Cambridge, 1894
- Porrhomma convexum
- Porrhomma egeria Simon, 1884
- Porrhomma errans
- Porrhomma montanum Jackson, 1913
- Porrhomma oblitum
- Porrhomma pallidum Jackson, 1913
- Porrhomma pygmaeum
- Porrhomma rosenhaueri
- Praestigia duffeyi
- Rhaebothorax morulus
- Saaristoa abnormis
- Saaristoa firma
- Saloca diceros
- Satilatlas britteni
- Savignia frontata
- Semljicola fausta = Eboria
- Silometopus ambiguus
- Silometopus elegans
- Silometopus incurvatus
- Silometopus reussi
- Sintula corniger
- Stemonyphantes lineatus
- Styloctetor stativus
- Tallusia experta
- Tapinocyba insecta
- Tapinocyba pallens
- Tapinocyba praecox
- Tapinopa longidens
- Taranucnus setosus
- Thyreosthenius parasiticus
- Tiso vagans
- Tmeticus affinis
- Trichoncus saxicola
- Trichopterna thorelli
- Troxochrus cirrifrons
- Troxochrus scabriculus
- Typhochrestus digitatus
- Walckenaeria acuminata
- Walckenaeria alticeps
- Walckenaeria antica
- Walckenaeria atrotibialis
- Walckenaeria capito
- Walckenaeria clavicornis
- Walckenaeria corniculans
- Walckenaeria cucullata
- Walckenaeria cuspidata Blackwall, 1833
- Walckenaeria dysderoides
- Walckenaeria kochi
- Walckenaeria monoceros
- Walckenaeria nodosa
- Walckenaeria nudipalpis
- Walckenaeria unicornis O.P.-Cambridge, 1861
- ''Walckenaeria vigilax''
Family [Liocranidae] (Liocranid sac spiders)
- Agraecina striata
- Agroeca proxima
- Liocranum rupicola
- Phrurolithus festivus
- Scotina gracilipes
- ''Scotina celans''
Family [Lycosidae] (wolf spiders)
- Alopecosa cuneata
- Alopecosa pulverulenta
- Arctosa cinerea
- Arctosa leopardus
- Arctosa perita
- Pardosa agrestis
- Pardosa agricola
- Spotted wolf spider
- Pardosa lugubris
- Pardosa monticola
- Pardosa nigriceps
- Pardosa palustris
- Pardosa prativaga
- Pardosa purbeckensis O.P.-Cambridge, 1895
- Pardosa pullata
- Pardosa saltans Töpfer-Hofmann, 2000
- Pirata hygrophilus Thorell, 1872
- Pirata latitans
- Pirata piraticus
- Pirata piscatorius
- Pirata tenuitarsis Simon, 1876
- Pirata uliginosus
- Trochosa ruricola
- Trochosa spinipalpis
- ''Trochosa terricola''
Family [Mimetidae] (pirate spiders)
- Ero cambridgei
- ''Ero furcata''
Family [Miturgidae]
- ''Zora spinimana''
Family [Nesticidae] (scaffold web spiders)
- ''Nesticus cellulanus''
Family [Oonopidae] (goblin spiders)
- Oonops domesticus
- ''Oonops pulcher''
Family [Philodromidae] (running crab spiders)
- Philodromus aureolus
- Philodromus cespitum
- Philodromus dispar Walckenaer, 1826
- Philodromus emarginatus
- Thanatus striatus
- Tibellus maritimus
- ''Tibellus oblongus''
Family [Pholcidae] (cellar spiders)
- Skull spider
Family [Pisauridae] (nursery web spiders)
- Raft spider
- ''Pisaura mirabilis''
Family [Salticidae] (jumping spiders)
- Calositticus caricis
- Euophrys frontalis
- Evarcha falcata
- Heliophanus cupreus
- Heliophanus flavipes
- Marpissa nivoyi
- Neon reticulatus
- Neon robustus Lohmander, 1945
- Pseudeuophrys erratica
- Pseudeuophrys lanigera
- Salticus scenicus
- Salticus cingulatus
- Sitticus floricola
- Sitticus pubescens
- Talavera aequipes
- Talavera petrensis C.L. Koch, 1837
Family [Segestriidae] (tube-dwelling spiders)
- Snake-back spider
Family [Scytodidae]
- Scytodes thoracica Latreille, 1804
Family [Sparassidae]
- ''Micrommata roseum''
Family [Tetragnathidae] (long-jawed orb weavers)
- European cave spider
- Metellina mengei
- Metellina merianae
- Metellina segmentata
- Pachygnatha clercki
- Pachygnatha degeeri
- Pachygnatha listeri Sundevall, 1830
- Tetragnatha extensa
- Tetragnatha montana Simon, 1874
- Tetragnatha nigrita Lendl, 1886
- Tetragnatha obtusa C.L. Koch, 1837
- Tetragnatha pinicola L. Koch, 1870
- Tetragnatha striata L. Koch, 1862
Family [Theridiidae] (tangle-web spiders)
- Achaearanea lunata = Parasteatoda
- Achaearanea tepidariorum = Parasteatoda
- Anelosimus vittatus
- Asagena phalerata
- Crustulina sticta
- Cryptachaea riparia
- Dipoena melanogaster
- Dipoena tristis
- Enoplognatha ovata
- Enoplognatha latimana Hippa & Oksala 1982
- Enoplognatha thoracica
- Episinus angulatus
- Episinus truncatus
- Euryopis flavomaculata
- Neottiura bimaculata
- Paidiscura pallens
- Pholcomma gibbum
- Platnickina tincta
- Robertus arundineti
- Robertus lividus
- Robertus neglectus
- Rugathodes bellicosus
- Rugathodes instabilis
- Simitidion simile
- Rabbit-hutch spider
- Steatoda grossa
- Steatoda nobilis
- Steatoda paykulliana
- Theonoe minutissima
- Theridion blackwalli O.P.-Cambridge, 1871
- Theridion impressum L.Koch, 1881 = Phylloneta
- Theridion melanurum Hahn, 1831
- Theridion mystaceum L.Koch, 1870
- Theridion sisyphium = Phylloneta
- ''Theridion varians''
Family [Theridiosomatidae] (ray spiders)
- ''Theridiosoma gemmosum''
Family [Thomisidae] (crab spiders)
- Diaea dorsata
- Goldenrod crab spider
- Ozyptila atomaria
- Ozyptila brevipes
- Ozyptila sanctuaria
- Ozyptila trux
- Ozyptila praticola
- Xysticus audax
- Xysticus cristatus
- Xysticus erraticus
- Xysticus lanio
- Xysticus luctuosus
- Xysticus sabulosus
- ''Xysticus ulmi''
Family [Uloboridae] (hackled orb weavers)
- ''Hyptiotes paradoxus''
Further information
- Fauna Europaea
Identification
- Jones, Dick, 1983 The Country Life Guide to spiders of Britain and Northern Europe Country Life Books/Hamlyn
- Jones-WaltersL.M., Keys to Families of British Spiders AIDGAP Guide, Field Studies Council No. 197, 1989.
- Locket, G.H. and Millidge, A.F. British Spiders. Vol I 1951, Vol II 1953 Ray Society of London.
- Locket, G.H., Millidge, A.F. and Merrett P. British Spiders Vol III 1974 Ray Society of London.
- Roberts, Michael J., The Spiders of Great Britain and Ireland Vols I, II, 1985, III 1987. Harley Books
- Roberts, Michael J., 1993 The Spiders of Great Britain and Ireland Compact Edition Harley Books, 1993
- Roberts, Michael J., 1995 Collins Field Guide: Spiders of Britain and Northern Europe Harper Collins
Cambridge University Press provides a comprehensive list of identification literature.