Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Calendar
BugGuide Gathering
Pack Forest
Washington State
July 10-12, 2009
Details...

Photos from the 2008 gathering in Tennessee
 
Photos from the 2007 gathering in Minnesota

TaxonomyBrowse
Info
ImagesLinksBooksData

Family Gyrinidae - Whirligig Beetles

Dineutus sp. - Dineutus Water beetle Water bugs - Dineutus Whirligig Beetle - Gyrinus Dineutus sp - Dineutus Backyard Beetle Family #50 - Dineutus Whirligig beetle- Gyrinus? - Gyrinus Whirligig beetle- Gyrinus? - Gyrinus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Gyrinidae (Whirligig Beetles)
Identification
4 Neartic Genera

Spanglerogyrus - < 3mm (1 sp. South, East)
Gyretes - 3-5mm; pronotal/elytral margins pubescent (4 spp. West, South)
Dineutus - 9-15 mm (41 spp. Widespread)
Gyrinus - 4-7 mm (14 spp Widespread)

That should be all you need to key it out... be sure to give a size when you post something
Print References
America Beetles, Vol. 1, Chapter 7 (1)
Works Cited
1.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
By Arnett, R.H., Jr., and M. C. Thomas. (eds.)