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Species Details
Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults of this species have been collected from May to October.
IdentificationBlack, elytra often rufinistic, and only tarsi, extreme tip of palps and extreme base of outer antennal segemnts paler, piceous. Elytra parallel-sided, microsculpture strong, nearly granulate at base. Male with meta-trochanters more or less pointed, about half as long as femora.
Scientific Name
Diplous aterrimus
Habitat
Among gravel near the edge of rapidly running brooks and rivers, at lower elevations.
Seasonality
Adults of this species have been collected from May to October.
Identification
Black, elytra often rufinistic, and only tarsi, extreme tip of palps and extreme base of outer antennal segemnts paler, piceous. Elytra parallel-sided, microsculpture strong, nearly granulate at base. Male with…
Black, elytra often rufinistic, and only tarsi, extreme tip of palps and extreme base of outer antennal segemnts paler, piceous. Elytra parallel-sided, microsculpture strong, nearly granulate at base. Male with meta-trochanters more or less pointed, about half as long as femora.
Life History
Overwinters in the adult stage.
Conservation
Relatively common.
Diet Info
Both larvae and adults are predatory.
Range
This species is found in northwestern United States and western Canada. In Alberta this species is found in the southern half.
Citation
Page Citation for Diplous aterrimus
Page Citation
"Species Details - Diplous aterrimus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search-test.museums.ualberta.ca/g/2-2575/9-38119. Accessed 12 Sep. 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 459 specimens of this Species.
UASM36633 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-24
UASM36634 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36635 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36636 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36637 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36638 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36639 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36640 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36641 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36642 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36643 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36644 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36645 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36646 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36647 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36648 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36649 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36650 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36651 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36652 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23
UASM36653 - Diplous aterrimus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Cameron Creek
Collected ByBall, G. E.
Date Collected1956-07-23