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Species Details
Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults of this species have been collected from May to October.
IdentificationSimilar to the genus Elaphrus, but with elytra larger in relation to forebody. Elytra each with four rows of flat, ocellate, almost circular depressions, separated by more or less pronounced, elevated, more shiny fields. Upper surface dull, usually with pronounced greenish or coppery lustre, mouthparts and legs more or less green. Length 8.5 to 11.0 mm.
Scientific Name
Opisthius richardsoni
Habitat
Confined to the banks of rivers and big brooks, with clay soil, often mixed with sand and gravel.
Seasonality
Adults of this species have been collected from May to October.
Identification
Similar to the genus Elaphrus, but with elytra larger in relation to forebody. Elytra each with four rows of flat, ocellate, almost circular depressions, separated by more or less pronounced, elevated, more shiny…
Similar to the genus Elaphrus, but with elytra larger in relation to forebody. Elytra each with four rows of flat, ocellate, almost circular depressions, separated by more or less pronounced, elevated, more shiny fields. Upper surface dull, usually with pronounced greenish or coppery lustre, mouthparts and legs more or less green. Length 8.5 to 11.0 mm.
Life History
Larvae develop during the summer and adults overwinter.
Conservation
Common.
Diet Info
Both adults and larvae are predatory.
Range
This species is found in western United States and Canada. In Alberta this species is found throughout most of the province.
Citation
Page Citation for Opisthius richardsoni
Page Citation
"Species Details - Opisthius richardsoni, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2248/9-229755. Accessed 12 Dec. 2024.
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 407 specimens of this Species.
BIRD33232 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Winfield
Collected ByBird, C. D.
Date Collected2005-04-20
UASM362621 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lynx Creek
Date Collected1967-07-11
UASM362767 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Blairmore
Date Collected1967-09-02
UASM362786 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Blairmore
Date Collected1967-09-02
UASM362811 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lynx Creek
Date Collected1967-07-11
UASM351731 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Medicine Hat
Collected ByCarr, F. S.
Date Collected1924-06-19
UASM351732 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Medicine Hat
Collected ByCarr, F. S.
Date Collected1923-05-12
UASM351733 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Medicine Hat
Collected ByCarr, F. S.
Date Collected1924-06-19
UASM351734 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Fort Macleod
Date Collected1924-08-24
UASM351735 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Pincher Creek
Collected ByCarr, F. S.
Date Collected1925-08-06
UASM351736 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lundbreck
Collected ByCarr, F. S.
Date Collected1925-08-08
UASM351737 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Michel
Collected ByCarr
Date Collected1926-08-10
UASM351738 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Michel
Collected ByCarr
Date Collected1926-08-09
UASM351739 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park
Collected ByCarr
Date Collected1925-08-09
UASM351740 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Medicine Hat
Collected ByCarr, F. S.
Date Collected1924-08-09
UASM351741 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vancouver Island, Duncan
UASM351742 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vancouver Island, Duncan
Collected ByHanham, A. W.
UASM351743 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Skeena River
Date Collected1920-05-01
UASM351744 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vancouver Island, Duncan
Collected ByHanham, A. W.
UASM351745 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Pincher Creek
Collected ByCarr
Date Collected1924-08-28
UASM351746 - Opisthius richardsoni
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Vancouver Island, Duncan
Collected ByHardy, G. A.
Date Collected1926-07-04