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Arthropodaphylum
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Hexapodasubphylum
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Insectaclass
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Coleopteraorder
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Polyphagasuborder
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Staphyliniformiaseries
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Hydrophiloideasuperfamily
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Hydrochidaefamily
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Hydrochusgenus
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←Set as a base
of the left panel species:
Hydrochus megaphallus
Berge Henegouwen, 1988
name status: valid name
BioMap ID: 1004487
taxon code: 5737 (726d)
taxonomy checked: YES
Gatunek niedawno opisany z Holandii, Anglii, Norwegii, Finlandii, Niemiec, Polski, Czech, Moraw, Austrii, Węgier, Rumunii i Turcji; notowany także ze Szwecji, Estonii i Danii, Bardzo blisko spokrewniony z Hydrochus brevis (Herbst), ale występuje w kałużach i rowach na gliniastym podłożu, gdy tymczasem Hydrochus brevis (Herbst) na podłożu torfiastym lub piaszczystym.