| author | date | title | journal / publication | Hoffmann JA | 1964 | Faune des Triclades Paludicoles du Grand-Duché du Luxembourg. | Arch. Inst. G.D. Sciences, Luxembourg 30 181-261 |
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| Humbertium subboreale (Sabussowa, 1925) | [with synonyms] | w | primary taxonomic authority (describer) |