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Species Dytiscus alaskanus - Boreal Water Beetle

Predaceous Diving Beetle - Dytiscus alaskanus - female Predaceous Diving Beetle - Dytiscus alaskanus - female Dytiscus alaskanus - male Boreal Water Beetle - Dytiscus alaskanus - male Boreal Diving Beetle - Dytiscus alaskanus - male Dytiscus alaskanus Dytiscus ??? - Dytiscus alaskanus - female Dytiscus ??? - Dytiscus alaskanus - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
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
22.6-32.0 mm(1)
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).
Transcontinental in Canada and Alaska, also present in parts of n. US as far south as Colorado(1)
Permanent lakes, ponds and bogs(1)
Overwinter as adults in permanent waters(1)
Internet References