There are approximately 1,107 species of arachnid native to Ireland. [11] 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 (daddy-long-legs), ticks, mites and pseudoscorpions. Arachnid groups absent from Ireland include true scorpions, whip scorpions, solifuges, cave spiders, microwhip scorpions, hooded tick spiders and tarantulas.
15 native species and three species which are not considered to be native: Odiella spinosus , Opilio parietinus (Phalangiidae) and Dicranopalpus ramosus (Leiobunidae)
17 species
At least 684 species
10 species
2 species
249 species
4 species
5 species
5 species
1 species
52 species [12]
7 species
2 species
3 species
44 species
1 species
2 species [13]
2 species
6 species
11 species
2 species
3 species
4 species
1 species
1 species
2 species
1 species
2 species
2 species
14 species
1 species
4 species
1 species
7 species
3 species
1 species
14 species
6 species
1 species
9 species
1 species
15 species
6 species
173 species have been identified for the Republic of Ireland
4 species
1 species
7 species
1 species
1 species
19 species
1 species
6 species
3 species
1 species
1species
2 species
7 species
2 species
1 species
6 species
4 species
4 species
2 species
1 species
4 species
5 species
12 species
4 species
1 species
1 species
3 species
1 species
2 species
1 species
1 species
1 species
4 species
2 species
1 species
1 species
1 species
16 species
3 species
7 species
1 species
8 species
1 species
1 species
1 species
1 species
2 species
2 species
2 species
6 species
1 species
2 species
1 species
390 species belonging to 31 families
Encyclopedia of Life online has many images via search Dictynoidea Placements
Helsdingen, P.J. van, 1996 A county distribution of Irish spiders, incorporating a revised catalogue of the species Irish Naturalists' Journal Special Issue
Key works are:-
Peter C. Barnard, 1999 Identifying British insects and arachnids: an annotated bibliography of key works Cambridge University Press ISBN 0 521 63241 2 provides a comprehensive list of identification literature.