Family Hypochthoniidae Berlese, 1910

Hypochthonius C.L. Koch, 1835

· Hypochthonius luteus Oudemans, 1917 *

· Original name: Hypochthonius luteus Oudemans, 1917 .

· In: Acarologische Aanteekeningen, LXII. Entomologische Berichten (Amsterdam), 4, 341–348.

· Synonyms: Hypochthonius rufulus sensu Buitendijk, 1945; Hypochthonius luteus rectosetosus Krivolutsky, 1965 .

Irish Reference/s and Habitat/s: Cutaway bog (Curry and Momen, 1988). Counties: Offaly.

· Hypochthonius rufulus C.L. Koch, 1836 *

· Original name: Hypochthonius rufulus C.L. Koch, 1836 .

· In: Deutschlands Crustaceen, Myriapoden und Arachniden, 3(19).

· Synonyms: Hypochthonius pallidulus C.L. Koch, 1835; Leiosoma ovata Nicolet, 1855; Arthrochthonius pallidulus (C.L. Koch) Ewing, 1917; Hypochthonius rufulus brevisetosus Krivolutsky, 1965 . Irish Reference/s and Habitat/s: Moss (Halbert 1915); agricultural grassland (Valarasan 1971; Curry 1976; Ganley 1976); heather and shelter belt on peat (Longworth 1973; Whelan 1976); acid pet bog (Behan-Pelletier and Hill, 1983); bracken, soil on cliff, ant nests and woodland (Bolger In press); broadleaved woodlands, coniferous forests and raised bogs (Arroyo et al. 2009a); raised bogs, mountain blanket bogs and Atlantic blanket bogs (Wisdom et al. 2011); moss on soil in ash, oak and Scots pine forests and soil in ash, Scots pine and Sitka spruce forest (Arroyo et al. 2012, 2013b). Counties: Dublin, Cork, Galway, Kerry, Kildare, Laois, Mayo, Offaly, Roscommon, Sligo, Tipperary, Waterford and Wicklow.