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Species Details
Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAll teneral specimens from late July.
IdentificationLarge (27.5 to 34.0 mm), elongate body (Larson et al. 2000). Brown to black - some with green appearance. Ring of yellow around inner margin of eye. All pronotal margins bordered with yellow. Lateral margin of elytra yellow and narrowing to apex. Yellow or reddish ventral surface, expect thoracic sclerites margins narrowly brown-black and metasternum medially and metacoxa dark red. Pale abdominal sterna, with basal margins of first through third sterna narrowly brown-black. Yellow or yellow-reddish legs, brown-black dorsal surface of tibia.
Scientific Name
Dytiscus circumcinctus
Habitat
Permanent and temporary ponds (Larson et al. 2000). Associated with aquatic macrophytes.
Seasonality
All teneral specimens from late July.
Identification
Large (27.5 to 34.0 mm), elongate body (Larson et al. 2000). Brown to black - some with green appearance. Ring of yellow around inner margin of eye. All pronotal margins bordered with yellow. Lateral margin of…
Large (27.5 to 34.0 mm), elongate body (Larson et al. 2000). Brown to black - some with green appearance. Ring of yellow around inner margin of eye. All pronotal margins bordered with yellow. Lateral margin of elytra yellow and narrowing to apex. Yellow or reddish ventral surface, expect thoracic sclerites margins narrowly brown-black and metasternum medially and metacoxa dark red. Pale abdominal sterna, with basal margins of first through third sterna narrowly brown-black. Yellow or yellow-reddish legs, brown-black dorsal surface of tibia.
Life History
Overwinter as adults in permanent waters (Larson et al. 2000). Late fall or early spring mating. Univoltine (Aiken and Wilkinson 1985). Strong swimmers, hind legs move together while swimming. Adults attracted to lights.
Conservation
No special status (IUCN 2002).
Diet Info
Predatory - active swimmers (Larson et al. 2000). Invertebrate and fish larvae prey. Larvae are predators of mayfly (Ephemeroptera) nymphs, isopods (Isopoda) and caddisflies (Trichoptera) (Johansson and Nilsson 1992).
Range
Holarctic (Larson et al. 2000). This species is recorded from most of Alberta. This species ranges from Alaska to Maine, and as far south as Washington, Iowa and North Carolina. Also known from Great Britain to…
Holarctic (Larson et al. 2000). This species is recorded from most of Alberta. This species ranges from Alaska to Maine, and as far south as Washington, Iowa and North Carolina. Also known from Great Britain to Kamchatka, records from peninsular Italy (Nardi and Maltzeff 2001).
Citation
Page Citation for Dytiscus circumcinctus
Page Citation
"Species Details - Dytiscus circumcinctus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4257/9-57109. Accessed 06 Jan. 2025.
References
Title
2002 IUCN Red List of Threatened Species.
Publication Date
2002
Series Title
Ecology
Author
Johansson, A. and A. N. Nilsson
Title
Dytiscus latissimus and D. circumcinctus (Coleoptera, Dytiscidae) Larvae as Predators on Three Case-Making Caddis Larvae.
Publication Date
1992
Series Title
Hydrobiologia
Volume
248
Pages
201-213
Author
Aiken, R. B. and C. W. Wilkinson
Title
Bionomics of Dytiscus alaskanus J. Balfour-Browne (Coleoptera: Dytiscidae) in a Central Alberta Lake.
Publication Date
1985
Series Title
Canadian Journal of Zoology
Volume
63
Pages
1316-1323
Author
Larson, D. J.; Alaire, Y. and R. E. Roughley
Title
Predaceous Diving Beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska.
Publication Date
2000
Pages
982
Author
Nardi, G. and P. Maltzeff
Title
The Hydroaphega of "Tenuta Presidenziale di Castelporziano," Italy (Coleoptera, Gyrinidae, Haliplidae, Noteridae, Hygrobiidae, Dytiscidae).
Publication Date
2001
Series Title
Bollettino dell' Associazione Romana di Entomologia
Volume
56
Pages
175-232
Specimen Information
There are 66 specimens of this Species.
UASM32410 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Highwood River
Collected ByLarson, D. J.
Date Collected1970-05-06
UASM32411 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Youngstown
Collected ByGetty, R.; Larson, D.
Date Collected1970-05-31
UASM32412 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Strathmore
Collected ByLarson, D.
Date Collected1970-10-18
UASM32413 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Crowsnest Pass
Collected ByLarson, D. J.; Larson, D. N.
Date Collected1970-06-19
UASM32414 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Magrath
Collected ByLarson, D. J.; Larson, D. N.
Date Collected1970-05-09
UASM32415 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lethbridge
Collected ByLarson, D. J.
Date Collected1968-09-16
UASM32416 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Northwest Territories, Hay River
Collected ByLarson, D. J.
Date Collected1964-07-02
UASM32417 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Northwest Territories, Hay River
Collected ByLarson, D. J.
Date Collected1964-07-02
UASM32418 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Cooking Lake
Date Collected1921-08-13
UASM32419 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByCarr, F. S.
Date Collected1922-04-26
UASM32420 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Tofield
Collected ByCarr, F. S.
Date Collected1922-08-29
UASM32421 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Hwy 35
Collected ByLarson, D.; Larson, M.
Date Collected1970-07-17
UASM32422 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Calgary
Collected ByLarson, D.
Date Collected1970-05-20
UASM32423 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lethbridge
Collected ByLarson, D. J.
Date Collected1970-05-07
UASM32424 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBryant, O.
Date Collected1927-08-19
UASM32425 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Buffalo
Collected ByCarr, F. S.
Date Collected1929-05-08
UASM32426 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByCarr, F. S.
Date Collected1922-04-26
UASM32428 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Cold Lake
Collected ByLarson, D. J.; Larson, D. N.
Date Collected1970-06-06
UASM32429 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1957-07-21
UASM32430 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wainwright
Collected ByLarson, D. J.; Larson, D. N.
Date Collected1970-06-05
UASM32431 - Dytiscus circumcinctus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Little Bow River
Collected ByLarson, D.; Larson, M.
Date Collected1971-04-09