| Genus | Species | Description | First record | Squares | Threat level | |
|---|---|---|---|---|---|---|
| Family Argyronetidae (4x) | ||||||
| Altella (1x) | Altella biuncata | (Miller, 1949) | 04/20/1940, Mohelno | 21 | Strongly endangered | |
| Argenna (2x) | Argenna patula | (Simon, 1874) | 06/20/1958, Lednice | 6 | Criticaly endangered | |
| Argenna subnigra | (O. Pickard-Cambridge, 1861) | 1940, Senorady | 46 | Not endangered | ||
| Argyroneta (1x) | Argyroneta aquatica | (Clerck, 1757) | 1859, Praha, č. o. Praha 1 | 60 | Endangered | |
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