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

Information about 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

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowseInfoImagesLinksBooksData
Photo#359203
Water Beetle - Hydrophilus triangularis

Water Beetle - Hydrophilus triangularis
Lindon, Utah County, Utah, USA
September 22, 2009
Size: 3.5 cm
We find these attracted to lights at night. It is the biggest Hydrophilidae in our area.

Images of this individual: tag all
Water Beetle - Hydrophilus triangularis Water Beetle - Hydrophilus triangularis Water Beetle - Hydrophilus triangularis

Moved
Moved from Hydrophilus.

Moved
Moved from ID Request.

 
Any idea on species?
Any idea on species?

 
H. triangularis
based on large size and characters of the prosternum (barely visible here in the ventral).

 
Thanks again for another quic
Thanks again for another quick identification.

Hydrophilus
*

 
agree
*

 
agreed again
*

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.