SeasonalityAdults have been collected in August.IdentificationMember of the gyllenhali group. Deep black without any trace of metallic reflection, appendages (except femora) often piceous, head without rufous spots. Prothorax broad, with strongly rounded and widely relexed sides, clearly sinuate before the sharp hind-angles, which are slightly acute to faintly obtuse; base with a short sinuation laterally. Also defined by the setigerous punctures on the second sternite and the combination of unisetose metacoxae and plurisetose sternites 3-5. Length 10.2 to 13.8 mm.
Scientific NameNebria hudsonicaHabitat
On barren, usually stony banks of running water; usually in mountainous or hilly districts.
Seasonality
Adults have been collected in August.
Identification
Member of the gyllenhali group. Deep black without any trace of metallic reflection, appendages (except femora) often piceous, head without rufous spots. Prothorax broad, with strongly rounded and widely relexed…
Member of the gyllenhali group. Deep black without any trace of metallic reflection, appendages (except femora) often piceous, head without rufous spots. Prothorax broad, with strongly rounded and widely relexed sides, clearly sinuate before the sharp hind-angles, which are slightly acute to faintly obtuse; base with a short sinuation laterally. Also defined by the setigerous punctures on the second sternite and the combination of unisetose metacoxae and plurisetose sternites 3-5. Length 10.2 to 13.8 mm.
Life History
Overwintering occurs in the larval stage, with most immature individuals found early in summer.
Conservation
Common.
Diet Info
Both larvae and adults are predatory.
Range
This subspecies is found in northwestern United States and western Canada. In Alberta only a few specimens have been collected in the south west region.
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Citation
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Page Citation for Nebria hudsonica
Page Citation
"Species Details - Nebria hudsonica, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1659. Accessed 21 Aug. 2025.
References
AuthorBousquet, Yves and Andre Larochelle
TitleCatalogue of the Geadephaga (Coleoptera: Trachypachidae, Rhysodidae, Carabidae Including Cicindelini) of America North of Mexico
Publication Date1993
Series TitleMemoirs of the Entomological Society of Canada
Pages1-397
AuthorLindroth, Carl H.
TitleThe Ground-beetles of Canada and Alaska. Part 2.
Publication Date1961
Series TitleOpuscula Entomologica
Volume20
Pages1-200
Specimen Information
There are 4 specimens of this Species.
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4 results plotted on map in 2 markers. Note: Only records with latitude and longitude coordinates are plotted on map.