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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Water Scavenger and Clown Beetles (Hydrophiloidea) » Water Scavenger Beetles (Hydrophilidae) » Hydrophilus » Hydrophilus ovatus
Photo#129468
Large Water Beetle - Hydrophilus ovatus
Copyright © 2007 Scott Nelson

Large Water Beetle - Hydrophilus ovatus
Lakeland, Polk County, Florida, USA
July 11, 2007
Size: 32 mm

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Large Water Beetle - Hydrophilus ovatus Large Water Beetle - Hydrophilus ovatus Large Water Beetle - Hydrophilus ovatus
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Contributed by Scott Nelson on 22 July, 2007 - 9:52am
Last updated 23 July, 2007 - 3:09pm

Moved
Moved from Hydrophilus triangularis.
… Scott Nelson, 23 July, 2007 - 3:09pm login or register to post comments

This is not H. triangularis
This species is Hydrophilus (Dibolocelus) ovatus, not triangularis. The primary difference is in prosternal keel (not visible in these photos), but the reduced pubescence on the abdomen (visible in third photo) also sperates this species from the other US species in the genus. Triangularis is also more narrow and less humpy-backed.
… Andrew Short, 23 July, 2007 - 1:45pm login or register to post comments

 
ID
Thanks for the quick lesson and correction in separating the two. I had used the Peterson Guide to Beetles by White. Apparently this other species was not mentioned. I'm glad you caught this mistake. What should I add a photo of so that others can see the difference?
… Scott Nelson, 23 July, 2007 - 3:09pm login or register to post comments

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