Subgenus Pseudoparasitus Oudemans, 1902

• Pseudoparasitus (Pseudoparasitus) centralis Berlese, 1921

• Original name: Pseudoparasitus centralis Berlese, 1921 .

• In: Redia, 14: 167.

Irish Records: Pasture (Valarasan, 1971); dry tidal debris at seashore (Healy & McGrath, 1998); nest of Lasius flavus and pasture (Arroyo et al., 2015).

Counties: Dublin, Limerick, Wexford.

• Pseudoparasitus (Pseudoparasitus) dentatus (Halbert, 1920)

• Original name: Laelaps dentatus Halbert, 1920 .

• In: Proceedings of the Royal Irish Academy, 35: 123.

• Combinations/variations used in Irish literature: Laelaps dentatus Halbert (Halbert, 1920) .

Irish Records: In crevices and between flakes where the coast is rocky, and also under stones on estuarine shores (Halbert, 1920); pasture (Valarasan, 1971); dune at seashore (Purvis, 1982).

Counties: Dublin, Galway, Wexford.

• Pseudoparasitus (Pseudoparasitus) meridionalis (G. & R. Canestrini, 1882) • Original name: Laelaps meridionalis G. & R. Canestrini, 1882. • In: Atti del Reale Istituto veneto di scienze, lettere ed arti, Series 6, 8: 922. • Combinations/variations used in Irish literature: Laelaps (Pseudoparasitus) meridionalis G. and R. Canestrini (Halbert, 1915).

Irish Records: Debris from nests of sea birds (Halbert, 1915); nest of Flavius fusca (Halbert, 1915) .

Counties: Dublin, Mayo.

• Pseudoparasitus (Pseudoparasitus) ovatulus (Halbert, 1915) • Original name: Laelaps (Hypoaspis) ovatulus Halbert, 1915 . • In: Proceedings of the Royal Irish Academy, 31: 71. • Combinations/variations used in Irish literature: Laelaps (Hypoaspis) ovatulus Halbert (Halbert, 1915; Hull, 1918). Irish Records: Flowers of Campanula on sandhills (Halbert, 1915).

Counties: Mayo.

Myonyssus Tiraboschi, 1904

• Myonyssus decumani Tiraboschi, 1904

• Original name: Myonyssus decumani Tiraboschi, 1904 .

• In: Archives de Parasitologie, 7: 337.

Irish Records: On Apodemus sylvaticus (Halbert, 1923) .

Counties: Wicklow.

• Myonyssus gigas (Oudemans 1912)

• Original name: Lyponyssus gigas Oudemans, 1912 .

• In: Entomologische Berichten, 3: 231. Irish Records: On Apodemus sylvaticus (Fairley, 1963, 1965); small mammal nests (unpublished data). Counties: Down, Kilkenny.