Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Dytiscus harrisii - Harris's Diving Beetle

Wondering what kind of bug this is... - Dytiscus harrisii Wondering what kind of bug this is... - Dytiscus harrisii Dytiscus harrisii - female Cybister fimbriolatus? - Dytiscus harrisii Dytiscus? - Dytiscus harrisii Predaceous Diving Beetle - Dytiscus harrisii Dytiscus verticalis? - Dytiscus harrisii Dytiscidae Dytiscus caught in baited minnow trap in oxbow pond of the Slave River Delta - Dytiscus harrisii - female
Classification
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 harrisii (Harris's Diving Beetle)
Explanation of Names
Dytiscus harrisii (Kirby 1837)
Size
32.4-39 mm (1) One of the largest North American dytiscids.
Identification
anterior margin of clypeus bisinuate
underside overall black to piceous except abdominal sternum 1 and anterior metacoxa, which are yellow
Range
transcontinental in Canada, also in the northeastern US and Alaska; most common in the east (in the Great Lakes region), rare in the west.(1)
Food
Predaceous; larvae reported to have a preference for larval caddisflies (See Leclair et al. 1986)
Print References
Leclair R. Jr., Alarie Y. , and Bourassa J-P. 1986. Prey choice in larval Dytiscus harrisii Kirby and D. verticalis Say (Coleoptera, Dytiscidae). Entomologica Basiliensia 11:337-342.
Internet References