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Photo#190098
Giant Water Scavenger Beetle - Hydrophilus triangularis
Copyright © 2008 PDyar

Giant Water Scavenger Beetle - Hydrophilus triangularis
Harmony, McHenry County, Illinois, USA
October 11, 2004
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Hydrophilidae
Genus: Hydrophilus
Species: Triangulus (Hydrophilus triangulus)
Contributed by PDyar on 12 June, 2008 - 12:41pm
Last updated 25 August, 2008 - 6:01pm

Moved
Moved from Hydrophilus triangularis.
… Will Chatfield-Taylor, 25 August, 2008 - 6:01pm

Moved
Moved from Beetles.
… Will Chatfield-Taylor, 25 August, 2008 - 6:01pm

Definitely not an ID...
...but this bug almost looks like a predaceous diving beetle (Dysticidae)! Not sure if these beetles ever wander far from the water, though... Could easily be the wrong family - please wait for a beetle expert to comment.
… Ken Schneider, 12 June, 2008 - 1:14pm

 
Close.
This is a giant water scavenger beetle, family Hydrophilidae. Long palps are often mistaken for antennae....This is probably the species Hydrophilus triangularis.
… Eric R. Eaton, 12 June, 2008 - 3:31pm

 
yes
i agree
… v belov, 12 June, 2008 - 11:48pm

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