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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Predaceous Diving Beetles (Dytiscidae) » Dytiscinae » Dytiscus » Boreal Water Beetle (Dytiscus alaskanus)

Species Dytiscus alaskanus - Boreal Water Beetle

Classification · Other Common Names · Synonyms and other taxonomic changes · Explanation of Names · Size · Identification · Range · Habitat · Season · Internet References · Works Cited
Predaceous Diving Beetle - Dytiscus alaskanus - female Predaceous Diving Beetle - Dytiscus alaskanus - female Dytiscus alaskanus - male Dytiscus alaskanus - male Boreal Water Beetle - Dytiscus alaskanus - male Dytiscus alaskanus Calvert Island Waterbeetle? - Dytiscus alaskanus - female Another Large water beetle - Dytiscus alaskanus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Dytiscinae
Genus Dytiscus
Species alaskanus (Boreal Water Beetle)
Other Common Names
Alaskan Diving Beetle
Synonyms and other taxonomic changes
D. parvulus
Explanation of Names
Dytiscus alaskanus J. Balfour-Browne 1944
Size
22.6-32.0 mm(1)
Identification
Relatively small in size compared to other members of the genus; metacoxal lobes acuminate(pointed); abdominal sterna yellow with expanded black markings; sulcate (ridged) females with ridges separated by yellow striae, ridges 7 & 10 and 8 & 9 fused apically on each elytron(1).
Range
Transcontinental in Canada and Alaska, also present in parts of n. US as far south as Colorado(1)
Habitat
Permanent lakes, ponds and bogs(1)
Season
Overwinter as adults in permanent waters(1)
Internet References
Species page(2)
Works Cited
1.Predaceous Diving Beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska
D.J. Larson, Y. Alarie, and R.E. Roughley. 2001. NRC 43253.
2.University of Alberta Entomology Collection
Contributed by Tim Loh on 5 May, 2009 - 2:00am
Additional contributions by Mike Quinn, v belov
Last updated 29 January, 2015 - 1:01am

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