Species Details
Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityThis species has been collected from June to August.
IdentificationMember of the politus group, with reduced number of dorsal punctures, 1-2, on the 3rd elytral interval, and the two teeth on the lateral margin of the protibiae rudimentary. Black or dark piceous with more or less pronounced metallic lustre (brassy, rarely bluish or greenish), antennae piceous with one plae basal segemnt (or more), legs reddish or piceous with more or less darkened femora. Anterior margin of clypeus usually truncate. Elytron with 1 subhumeral fovea and 2 preapical punctures. Length 3.4-4.9 mm.
Scientific Name
Dyschirius politus
Habitat
Usually on river banks, at times on lake shores, but also in not too dry spots with low vegetation.
Seasonality
This species has been collected from June to August.
Identification
Member of the politus group, with reduced number of dorsal punctures, 1-2, on the 3rd elytral interval, and the two teeth on the lateral margin of the protibiae rudimentary. Black or dark piceous with more or less…
Member of the politus group, with reduced number of dorsal punctures, 1-2, on the 3rd elytral interval, and the two teeth on the lateral margin of the protibiae rudimentary. Black or dark piceous with more or less pronounced metallic lustre (brassy, rarely bluish or greenish), antennae piceous with one plae basal segemnt (or more), legs reddish or piceous with more or less darkened femora. Anterior margin of clypeus usually truncate. Elytron with 1 subhumeral fovea and 2 preapical punctures. Length 3.4-4.9 mm.
Life History
No information available.
Conservation
Common.
Diet Info
Both larvae and adults are predatory.
Range
This species is found throughout northern United States and most of Canada. In Alberta this species is found in the southern three fifths.
Citation
Page Citation for Dyschirius politus
Page Citation
"Species Details - Dyschirius politus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2516. Accessed 21 Feb. 2025.
References
Author
Bousquet, Yves and Andre Larochelle
Title
Catalogue of the Geadephaga (Coleoptera: Trachypachidae, Rhysodidae, Carabidae Including Cicindelini) of America North of Mexico
Publication Date
1993
Series Title
Memoirs of the Entomological Society of Canada
Pages
1-397
Author
Lindroth, Carl H.
Title
The Ground-beetles of Canada and Alaska. Part 2.
Publication Date
1961
Series Title
Opuscula Entomologica
Volume
20
Pages
1-200
Specimen Information
There are 67 specimens of this Species.
UASM183886 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vanderhoof
Collected ByBall, G. E.
Date Collected1958-06-14
UASM183887 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vanderhoof
Collected ByBall, G. E.
Date Collected1958-06-14
UASM183888 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vanderhoof
Collected ByBall, G. E.
Date Collected1958-06-14
UASM183889 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vanderhoof
Collected ByBall, G. E.
Date Collected1958-06-14
UASM183890 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Alaska, Fairbanks North Star
Collected ByBall, G. E.
Date Collected1958-07-04
UASM183891 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Alaska, Fairbanks North Star
Collected ByBall, G. E.
Date Collected1958-07-04
UASM183892 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Alaska, Fairbanks North Star
Collected ByBall, G. E.
Date Collected1958-07-04
UASM183893 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Alaska, Fairbanks North Star
Collected ByBall, G. E.
Date Collected1958-07-04
UASM183894 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Alaska, Fairbanks North Star
Collected ByBall, G. E.
Date Collected1958-07-04
UASM183895 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Liard River
Collected ByBall, G. E.
Date Collected1958-06-20
UASM183896 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Racing River
Collected ByBall, G. E.
Date Collected1958-06-19
UASM183897 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Pine River
Collected ByBall, G. E.
Date Collected1958-06-17
UASM183898 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Pine River
Collected ByBall, G. E.
Date Collected1958-06-17
UASM183899 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Endako
Collected ByBall, G. E.
Date Collected1958-06-13
UASM183900 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Endako
Collected ByBall, G. E.
Date Collected1958-06-13
UASM183901 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Endako
Collected ByBall, G. E.
Date Collected1958-06-13
UASM183902 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Endako
Collected ByBall, G. E.
Date Collected1958-06-13
UASM183903 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Elk River
Collected ByBall; Madge; McFadden
Date Collected1960-06-09
UASM183904 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Elk River
Collected ByBall; Madge; McFadden
Date Collected1960-06-09
UASM183905 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: California, Humboldt county, Van Duzen River
Collected ByBall; Freitag; Lister; McDonald
Date Collected1963-06-10
UASM183906 - Dyschirius politus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Wyoming, Teton county, Snake River
Collected ByG. E. Ball family
Date Collected1959-06-13