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Species Details
Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults of this species have been collected from June to September.
IdentificationLargest member in the genus, at once separated from the other species by the impunctate deeply engraved anterior transverse impression which reaches the front angles of the prothorax. Piceous to almost black, very shiny, mouthparts paler, legs bright rufous or testaceous. Elytra slightly iridescent, microsculpture transverse. Length 9.2-14.8 mm.
Scientific Name
Patrobus longicornis
Habitat
Meadows in deciduos forests; cultivated ground with rich vegetation; near margin of water.
Seasonality
Adults of this species have been collected from June to September.
Identification
Largest member in the genus, at once separated from the other species by the impunctate deeply engraved anterior transverse impression which reaches the front angles of the prothorax. Piceous to almost black, very…
Largest member in the genus, at once separated from the other species by the impunctate deeply engraved anterior transverse impression which reaches the front angles of the prothorax. Piceous to almost black, very shiny, mouthparts paler, legs bright rufous or testaceous. Elytra slightly iridescent, microsculpture transverse. Length 9.2-14.8 mm.
Life History
Overwinters in the larval stage.
Conservation
Common.
Diet Info
Both larvae and adults are predatory.
Range
This species is found in most of United States and Canada. In Alberta this species is found in the southern half.
Citation
Page Citation for Patrobus longicornis
Page Citation
"Species Details - Patrobus longicornis, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2569/9-38312. Accessed 25 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 245 specimens of this Species.
UASM237898 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: South Dakota, Fall River county, Oelrichs
Collected ByMaddison, D. R.; Maddison, W. P.
Date Collected1982-05-30
UASM237899 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: South Dakota, Custer county, Black Hills
Collected ByEvans, H. E.
Date Collected1948-08-24
UASM237900 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Washington, Pierce county, Silver Springs
Date Collected1968-06-26/1968-06-27
UASM237901 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Washington, Walla Walla county, Snake River
Collected BySuenson, E.
Date Collected1949-09-23
UASM237902 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Washington, Spokane county, Spokane
Collected ByBall, G. E.
Date Collected1955-07-27
UASM237903 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Wyoming, Platte county, Glendo Reservoir
Collected ByWhitehead, D. R.
Date Collected1967-06-20
UASM237904 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Lobo
Collected ByBall, G. E.; Ball, K. E.
Date Collected1983-06-14
UASM237905 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Chaffeys Locks
Collected ByBall, G. E.; Ball, K. E.
Date Collected1984-06-23
UASM237906 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Chaffeys Locks
Collected ByBall, G. E.; Ball, K. E.
Date Collected1984-06-23
UASM237907 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Chaffeys Locks
Collected ByBall, G. E.; Ball, K. E.
Date Collected1984-06-23
UASM237908 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Chaffeys Locks
Collected ByBall, G. E.
Date Collected1985-06-15
UASM237909 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Chaffeys Locks
Collected ByBall, G. E.
Date Collected1985-06-15
UASM237910 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Chaffeys Locks
Collected ByBall, G. E.
Date Collected1985-06-15
UASM237911 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Pike Lake
Collected ByBall, G. E.; Ball, K. E.
Date Collected1984-06-24
UASM237912 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Pike Lake
Collected ByBall, G. E.; Ball, K. E.
Date Collected1984-06-24
UASM237913 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario
Collected ByM. F. H.; Ball, K. E.
Date Collected1951-08-29
UASM237914 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Pelee Island
Collected ByFetherston, K.
Date Collected1948-10-23/1948-10-29
UASM237915 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Fanshawe Lake
Collected ByBall, G. E.
Date Collected1956-08-15
UASM237916 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Ontario, Fanshawe Lake
Collected ByBall, G. E.
Date Collected1956-08-15
UASM237984 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Saskatchewan, Cypress Hills, Fort Walsh
Collected ByBall, G. E.
Date Collected1956-07-19
UASM237985 - Patrobus longicornis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Saskatchewan, Cypress Hills, Fort Walsh
Collected ByBall, G. E.
Date Collected1956-07-19