Family Brachychthoniidae Thor, 1934

Brachychthonius Berlese, 1910

· Brachychthonius berlesei Willmann, 1928

· Original name: Brachychthonius berlesei Willmann, 1928 .

· In: Die Oribatidenfauna nordwestdeutscher und einiger süddeutscher Moore. Abhandlungen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen, 27, 143–176.

· Historical combinations/variations: Brachychochthonius berlesei (Willmann) Jacot, 1938 .

· Synonyms: Brachychthonius brevis Berlese, 1910 [misidentification]; Brachychochthonius jugatus Jacot, 1938 .

Irish Reference/s and Habitat/s: Agricultural grassland and associated with weed species in grassland (Curry 1969, 1970, 1976; Ganley 1976) grassland where slurry had been applied (Bolger 1980); dune and gorse bank at seashore (Purvis 1982); shelter belt on peat (Longworth 1973); Sphagnum (Bolger, In press). Counties: Dublin, Kildare, Mayo and Wexford.

· Brachychthonius bimaculatus Willmann, 1936 *

· Original name: Brachychthonius bimaculatus Willmann, 1936 .

· In: Neue Acari aus schlesischen Wiesenboden. Zoologische Anzeiger, 113, 273–290.

· Historical combinations/variations: Brachychochthonius bimaculatus (Willmann), Moritz, 1963.

· Synonyms: Brachychthonius helveticus Schweizer, 1956 .

Irish Reference/s and Habitat/s: Agricultural grassland with application of animal manure (Bolger 1980); agricultural grassland (Bolger and Curry, 1984); dune and pasture at seashore (Purvis 1982). Counties: Wexford.

· Brachychthonius hirtus Moritz, 1976

· Original name: Brachychthonius hirtus Moritz, 1976 .

· In: Revision der Europäischen Gattungen und Arten der Familie Brachychthoniidae ( Acari, Oribatei). Mitteilungen aus dem Zoologischen Museum in Berlin, 52, 227–319.

· Historical combinations/variations: Brachychochthonius hirtus (Moritz) Saloña and Iturrondobeitia, 1988 . Irish Reference/s and Habitat/s: Agricultural grassland (Piotrowska 2010). Counties: Cork.

Liochthonius van der Hammen, 1952

· Liochthonius alpestris (Forsslund, 1958)

· Original name: Brachychthonius alpestris Forsslund, 1958 .

· In: Notizen über Oribatei ( Acari). II. Entomologisk Tidskrift, 79, 75–86.

· Historical combinations/variations: Liochthonius (Liochthonius) alpestris (Forsslund) Subías 2004 . Irish Reference/s and Habitat/s: Soil in Norway spruce forest (Heneghan 1994). Counties: Kilkenny.

· Liochthonius brevis (Michael, 1888) *

· Original name: Hypochthonius brevis Michael, 1888 .

· In: British Oribatidae . Vols. I and II. Ray Soc., London. 656 pp.

· Historical combinations/variations: Brachychthonius brevis (Michael) Jacot, 1938; Liochthonius (Liochthonius) brevis (Michael) Subías, 2004 .

· Synonyms: Brachychthonius perpusillus Berlese, 1910; Brachychthonius latus Jacot, 1936; Liochthonius perpusillus (Berlese) van der Hammen, 1959 .

Irish Reference/s and Habitat/s: Sphagnum and other mosses (Halbert 1915); agricultural grassland (Curry 1976, 1979); dune, gorse bank and bracken bed (Purvis 1982); Salix litter on cutaway bog (unpublished data); woodland soil (unpublished data); fungal sporocarps (O’Connell 1994), soil in Norway spruce forest (Heneghan 1994; Heneghan and Bolger 1996), soil and moss on soil in Sitka spruce forest (Arroyo and Bolger 2007); moss in canopy of Sitka spruce forest (Arroyo et al. 2009b); moss on soil in Sitka spruce forests (Arroyo et al. 2012, 2013b).

Counties: Dublin, Kildare, Kilkenny, Laois, Mayo, Meath, Offaly, Wexford and Wicklow.

· Liochthonius evansi (Forsslund, 1958)

· Original name: Brachychthonius evansi Forsslund, 1958 .

· In: Notizen über Oribatei ( Acari). II. Entomologisk Tidskrift, 79, 75–86.

· Historical combinations/variations: Liochtonius (Liochthonius) evansi (Forsslund) Subías, 2004 .

· Synonyms: Liochthonius forsslundi Mahunka, 1969, “nom. praeoc.” by Hammer, 1952; Brachychthonius horridus Evans 1952 [misidentification]; Liochthonius forsslundi levis Chinone, 1974; Liochthonius asotthalomensis Marshall et al., 1987 .

Irish Reference/s and Habitat/s: Fungal sporocarps (O’Connell 1994). Counties: Kilkenny.

· Liochthonius horridus (Sellnick, 1928) *

· Original name: Brachychthonius horridus Sellnick, 1928 .

· In: Formenkreis: Hornmilben, Oribatei. Die Tierwelt Mitteleuropas, 3, 4 (IX), 1–42.

· Historical combinations/variations: Liochthoinius horridus [sic] (Sellnick) Mahunka 1969; Liochthonius (Liochthonius) horridus (Sellnick) Subías, 2004 .

· Synonyms: Brachychthonius gisini Strenzke, 1951 .

Irish Reference/s and Habitat/s: Agricultural grassland (Curry 1976); dune and gorse bank (Purvis 1982); soil heather (Longworth 1973); cutaway raised bog and pasture on peat (Whelan 1976); fungal sporocarps (O’Connell 1994).

Counties: Dublin, Kildare Kilkenny, Mayo and Wexford.

· Liochthonius hystricinus (Forsslund, 1942) *

· Original name: Brachychthonius hystricinus Forsslund, 1942 .

· In: Schwedische Oribatei ( Acari) I. Arkiv fÖr zoologi, 34A (10), 1–11.

· Historical combinations/variations: Liochthonius (Liochthonius) hystricinus (Forsslund) Subías, 2004; Liochthonius hystricinum [sic] (Forsslund) Arroyo et al., 2009b.

· Synonyms: Brachychthonius ocellatus Hammer, 1952 .

Irish Reference/s and Habitat/s: Soil in woodlands (unpublished data); soil in Norway spruce forest, (Heneghan 1994; Heneghan and Bolger 1996); soil and moss in canopy of Sitka spruce forests (Arroyo and Bolger 2007; Arroyo et al. 2009b).

Counties: Kilkenny and Laois.

· Liochchthonius laetepictus (Berlese, 1910) sp.inq.

· Original name: Brachychthonius laetepictus Berlese, 1910 .

· In: Βrevi diagnosi di generi e specie nuovi di Acari . Ibid., (6), 346–388.

· Historical combinations/variations: Liochthonius (Liochthonius) laetepictus (Berlese) Subías, 2004

· Synonyms: Eobrachychthonius oudemansi (van der Hammen) Miko, 2016 . Irish Reference/s and Habitat/s: Fungal sporocarps (O’Connell 1994). Counties: Kilkenny.

· Liochthonius lapponicus (Trägårdh, 1910) *

· Original name: Hypochthonius brevis lapponicus Trägårdh, 1910 .

· In: Acariden aus dem Sarekgebirge. Naturwiss. Untersuch. Sarekgebirges Schwedisch-Lappland, 4, 375–586.

· Historical combinations/variations: Brachychthonius lapponica (Trägårdh) Strenzke, 1951; Liochthonius (Liochthonius) lapponicus (Trägårdh) Subías, 2004 .

· Synonyms: Liochthonius perpusillus sensu Pérez-Ínigo, 1968 no Berlese, 1910. Irish Reference/s and Habitat/s: Pasture and gorse bank at seashore (Purvis 1982). Counties: Wexford.

· Liochthonius leptaleus Moritz, 1976 *

· Original name: Liochthonius leptaleus Moritz, 1976 .

· In: Revision der europäischen Gattungen und Arten der Familie Brachychthoniidae ( Acari, Oribatei) Teil 1. Allgemeiner Teil: Brachychthoniidae Thor, 1934 . spezieller Teil: Liochthonius v. d. Hammen, 1959, Verachthonius nov. gen. und Paraliochthonius nov. gen. Mitteilungen aus dem Zoologischen Museum an der Humboldt-Universität zu Berlin, 52, 27–136.

· Historical combinations/variations: Liochthonius (Liochthonius) leptaleus (Moritz) Subías, 2004 Irish Reference/s and Habitat/s: Dune and pasture at seashore (Purvis 1982); Salix litter on a cutaway bog (unpublished data).

Counties: Offaly and Wexford.

· Liochthonius muscorum Forsslund, 1964 *

· Original name: Liochthonius muscorum Forsslund, 1964 .

· In: Liochthonius muscorum n.sp. und L. lapponicus (Träg.) ( Acari, Oribatei). Entomologisk Tidskrift, 85, 238– 238.

· Historical combinations/variations: Liochthonius (Liochthonius) muscorum (Forsslund) Subías, 2004 Irish Reference/s and Habitat/s: Pasture (Purvis 1982); Norway spruce forest (Heneghan 1994); moss on soil surface in Sitka spruce forest (Arroyo and Bolger, 2007).

Counties: Laois, Kilkenny and Wexford.

· Liochthonius perfusorius Moritz, 1976

· Original name: Liochthonius perfusorius Moritz, 1976 .

· In: Revision der Europaischen Gattungen und Arten der Familie Brachychthoniidae ( Acari, Oribatei). Teil I. - Mitteilungen aus dem Zoologischen Museum in Berlin, 52, 27–136.

· Historical combinations/variations: Liochthonius (Liochthonius) perfusorius (Moritz) Subías, 2004

· Synonyms: Brachychthonius “furcillatus”; Strenzke 1951 [misidentification]; Liochchthonius hystricinus sensu Niedbala 1974 .

Irish Reference/s and Habitat/s: Soil and moss on soil surface in Sitka spruce forest (Arroyo and Bolger, 2007)

Counties: Laois.

· Liochthonius sellnicki (Thor, 1930) *

· Original name: Brachychthonius sellnicki Thor, 1930 .

· In: Beiträge zur Kenntnis der Invertebraten Fauna von Svalbard . Skrifter om Svalbard og Ishavet, Oslo, 27, 1–

156.

· Historical combinations/variations: Liochthonius (Liochthonius) sellnicki (Thor) Subías, 2004 .

· Synonyms: Brachychthonius brevis expolitus Berlese, 1910 “sp. inq.”; Brachychthonius scalaris Forsslund,

1942; Brachychthonius brevis (Michael) sensu Hammer, 1944 [misidentification]; Brachychthonius nodosus

Willmann, 1952; Liochthonius scalaris (Forsslund) sensu Csiszár and Jeleva 1962 .

Irish Reference/s and Habitat/s: Heather and shelter belt on peat (Longworth 1973); agricultural grassland (Ganley 1976; Curry 1976, 1979; Arroyo et al. 2015); soil and herbage on cutaway raised bogs and in permanent pasture (Whelan 1978, 1985, 1986); dune and pasture at seashore (Purvis 1982); soil from Sitka spruce forest (Arroyo and Bolger 2007); ant nests (Arroyo et al. 2015).

Counties: Dublin, Kildare, Laois, Limerick, Mayo and Wexford.

· Liochthonius simplex (Forsslund, 1942) *

· Original name: Brachychthonius simplex Forsslund, 1942 .

· In: Schwedische Oribatei ( Acari). I. Arkiv fÖr zoologi, 34A (10), 1–11.

· Historical combinations/variations: Liochthonius (Liochthonius) simplex (Forsslund) Subías, 2004 .

· Synonyms: Brachychthonius scalaris Forsslund, 1942; Liochthonius scalaris (Forsslund) Forsslund, 1942; Brachychthonius nodosus Willmann, 1952; Brachychthonius brevis sensu Hammer, 1944 no Berlese, 1910. Irish Reference/s and Habitat/s: Soil from Norway spruce forest (Heneghan 1994; Heneghan and Bolger 1996); fens (Wisdom et al. 2011); agricultural grassland and ant nests (Arroyo et al. 2015). Counties: Kerry, Kilkenny and Limerick.

Neoliochthonius Lee, 1982

· Neoliochthonius piluliferus (Forsslund, 1942) *

· Original name: Brachychthonius piluliferus Forsslund, 1942 .

· In: Schwedische Oribatei ( Acari). I. Arkiv fÖr zoologi, 34A (10), 1–11.

· Historical combinations/variations: Liochthonius piluliferus (Forsslund) Reeves, 1969; Paraliochthonius piluliferus (Forsslund) Moritz, 1976; Neoliochthonius piluliferus (Forsslund) Lee, 1982; Brachychthonius piluiferus [sic] (Forsslund) Purvis, 1982.

Irish Reference/s and Habitat/s: Agricultural grassland (Curry 1976); dune, pasture, gorse bank, bracken bed and Salix ditch at seashore (Purvis 1982); woodland soil (unpublished data). Counties: Dublin, Kilkenny and Wexford.

Sellnickochthonius Krivolutsky, 1964

· Sellnickochthonius cricoides (Weis-Fogh, 1948) * · Original name: Brachychthonius cricoides Weis-Fogh, 1948 .

· In: Ecological investigation on mites and Collemboles in the soil. Appendix: Description of some new mites

( Acari). Natura Jutlandica, 1, 135–270.

Irish Reference/s and Habitat/s: Agricultural grassland (Curry 1969a); cutaway raised bog and permanent pasture on peat (Whelan 1976); dune, Iris bog and gorse bank at seashore (Purvis 1982); fungal sporocarps (O’Connell 1994).

Counties: Kildare, Kilkenny and Wexford.

· Sellnickochthonius furcatus (Weis-Fogh, 1948) *

· Original name: Brachychthonius furcatus Weis-Fogh, 1948 .

· In: Ecological investigation on mites and Collemboles in the soil. Appendix: Description of some new mites ( Acari). Natura Jutlandica, 1, 135–270.

· Historical combinations/variations: Brachychochthonius furcatus (Weis-Fogh) Balogh and Mahunka, 1983 . Irish Reference/s and Habitat/s: Cutaway raised bog and permanent pasture on peat (Whelan 1976); soil in sugar beet field (Breslin 1979); agricultural grassland (Bolger 1980); soil in Norway spruce forest (Heneghan 1994; Heneghan and Bolger 1996).

Counties: Carlow, Kildare, Kilkenny and Wexford.

· Sellnickochthonius honestus (Moritz, 1976)

· Original name: Brachychochthonius honestus Moritz, 1976 .

· In: Revision der europäischen Gattungen und Arten der Familie Brachychochthoniidae ( Acari, Oribatei) Teil 2. Mixochthonius Niedbała, 1972, Neobrachychthonius nov. gen, Synochthonius v. d. Hammen, 1952, Poecilochthonius Balogh, 1943, Brachychthonius Berlese, 1910, Brachychochthonius Jacot, 1938 . Mitteilungen aus dem Zoologischen Museum an der Humboldt-Universität zu Berlin, 52, 227–319. · Synonyms: Brachychthonius zelawaiensis; Evans 1952 [misidentification]; Brachychthonius zelawaiensis; BulanovaZachvatkina 1957 [misidentification].

Irish Reference/s and Habitat/s: Soil in Norway spruce forest (Heneghan 1994).

Counties: Kilkenny.

· Sellnickochthonius hungaricus (Balogh, 1943) *

· Original name: Poecilochthonius hungaricus Balogh, 1943 .

· In: Magyarország páncélosatkái. (Conspectus Oribateorum Hungariae). Matematikai és Természettudományi KÖzlemények, 38 (5), 1– 202.

Irish Reference/s and Habitat/s: Dune, pasture and Salix ditch at seashore (Purvis 1982); Salix litter on cutaway bog (Bolger 1985).

Counties: Wexford and Offaly.

· Sellnickochthonius immaculatus (Forsslund, 1942) *

· Original name: Brachychochthonius immaculatus Forsslund, 1942 .

· In: Schwedische Oribatei ( Acari) I. Arkiv fÖr zoologi, 34 A (10), 1–11.

· Historical combinations/variations: Brachychthonius immaculatus (Forsslund) Jacot, 1937 .

· Synonyms: Brachychochthonius berlesei erosus Jacot, 1938; Brachychthonius berlesei sensu Haarløv, 1942 non Willmann, 1928; Brachychochthonius arcticus Hammer, 1952; Brachychthonius semiornatus Evans, 1952; Brachychthonius striatus Willmann, 1956; Brachychthonius gygeri Bader, 1963; Brachychthonius obscurus Krivolutsky, 1966; Brachychthonius arcticus (Hammer) Krivolutsky, 1966; Liochthonius arcticus (Hammer) Behan, 1978 .

Irish Reference/s and Habitat/s: Heather and shelter belt on peat (Longworth 1973); agricultural grassland with applications of animal manure (Bolger 1980); dune, pasture, Iris bog and bracken bed (Purvis 1982); agricultural grassland (Bolger and Curry, 1984); soil from Norway spruce forest (Heneghan 1994; Heneghan and Bolger 1996); fungal sporocarps (O’Connell 1994).

Counties: Kilkenny, Mayo and Wexford.

· Sellnickochthonius jacoti (Evans, 1952) *

· Original name: Brachychthonius jacoti Evans, 1952 .

· In: British mites of the genus Brachychthonius Berl., 1910 . Annals and Magazine of Natural History, London, 5, 227–239.

Irish Reference/s and Habitat/s: Dune, pasture and gorse bank at seashore (Purvis 1982) soil from Norway spruce forest (Heneghan 1994; Heneghan and Bolger 1996). Counties: Kilkenny and Wexford.

· Sellnickochthonius oesziae (Balogh and Mahunka, 1979)

· Original name: Brachychochthonius oesziae Balogh and Mahunka, 1979 .

· In: New taxa in the system of the Oribatida (Acari) . Annales historico-naturales Musei Nationalis Hungarici, 71,279–290.

Irish Reference/s and Habitat/s: Fungal sporocarps (O’Connell 1994). Counties: Kilkenny.

· Sellnickochthonius suecicus (Forsslund, 1942) *

· Original name: Brachychochthonius jugatus suecicus Forsslund, 1942 .

· In: Schwedische Oribatei ( Acari). I. Arkiv fÖr zoologi, 34 A (10), 1–11.

· Historical combinations/variations: Brachychthonius jugatus suecica (Forsslund) Evans, 1952; Brachychthonius suecica (Forsslund) van der Hammen, 1952; Brachychochthonius suecica (Forsslund) Moritz, 1963; Sellnickochthonius suecica (Forsslund) Ghilarov, 1975 .

· Synonyms: Brachychthonius jugatus sensu Niedbala, 1972 no Jacot, 1938.

Irish Reference/s and Habitat/s: Dune, pastures gorse bank and Salix ditch at seashore (Purvis 1982). Counties: Wexford.

· Sellnickochthonius zelawaiensis (Sellnick, 1928) *

· Original name: Brachychthonius zelawaiensis Sellnick, 1928 .

· In: Formenkreis: Hornmilben, Oribatei. Die Tierwelt Mitteleuropas 3, 4 (IX), 1–42.

· Historical combinations/variations: Brachychochthonius zelawaiensis (Sellnick) Jacot, 1938; Sellnickochthonius zelawaiensis (Sellnick) Krivolutsky, 1964 .

Irish Reference/s and Habitat/s: Cutaway raised bog and permanent pasture on bog (Longworth 1973; Whelan 1976); agricultural grassland (Curry 1976); soil in Norway spruce forest (Heneghan 1994); fungal sporocarps (O’Connell 1994; unpublished data); moss on soil in Sitka spruce forests (Arroyo et al. 2012, 2013b).

Counties: Dublin, Kildare, Kilkenny, Mayo and Wicklow.

Synchthonius van der Hammen, 1952

· Synchthonius elegans Forsslund, 1957

· Original name: Synchthonius elegans Forsslund, 1957 .

· In: Schwedische Oribatei ( Acari). III. Entomologisk Tidskrift, 77 (2–4), 210–218. Irish Reference/s and Habitat/s: Fungal sporocarps (O’Connell 1994). Counties: Kilkenny.