Species (41)
- Arrenurus membranator
- Arrenurus hungaricus
- Halacarus poucheti
- Halacarus reticulatus
- Hygrobates impressus
- Hygrobates trigonicus
- Hygrobates verrucifer
- Hygrobates fluviatilis
- Hygrobates foreli
- Hygrobates calliger Piersig 1896
- Hygrobates nigromaculatus Lebert 1879
- Hygrobates foreli ssp. foreli
- Hygrobates nigromaculatus ssp. nigromaculatus
- Copidognathus papillatus Krantz 1982
- Halacarellus auzendei Bartsch 1990
- Hygrobates nigromaculatus Piersig 1898 ssp. ramosus
- Porolohmannella violacea Kram. 1879
- Porohalacarus alpinus Thor 1910
- Arrenurus pustulator Müller 1776
- Arrenurus bruzelii Koenike 1885
- Arrenurus affinis Koenike 1887
- Arrenurus claviger Koenike 1885
- Arrenurus radiatus Piersig 1894
- Arrenurus zachariae Koenike 1886
- Arrenurus adnatus Koenike 1902
- Arrenurus cylindratus Piersig 1896
- Arrenurus conicus Piersig 1894
- Arrenurus tubulator Müller 1776
- Arrenurus forcipatus Neuman 1880
- Porohalacarus hydrachnoides Lohmann ()
- Arrenurus membranator Thor 1901
- Hygrobates fluviatilis Ström 1768
- Hygrobates foreli Lebert 1874
- Hygrobates longipalpis Hermann 1804
- Hygrobates foreli Koenike () ssp. titubans
- Hygrobates longiporus Thor
- Hygrobates nacius Johnston ()
- Hygrobates norvegicus Thor ()
- Hygrobates titubans Koenike
- Halacarus borealis
- Hygrobates reticulatus Kramer