What's That Bug? does not endorse extermination

A big beetle!
Location: Sacramento CA
April 1, 2012 4:44 pm
Hi Mr. Bugman,
I love your site and have for years. Can you tell me what this 1-3/4” beetle is? My husband is holding him. We found him in the garden in March here in Sacramento Ca.
Signature: Fellow Bug Lover

Giant Black Water Beetle

Dear Fellow Bug Lover,
This is an aquatic beetle, and judging by its size, we are relatively confident it is a Diving Beetle in the family Dytiscidae which is well represented on BugGuide.  Though they are aquatic, Diving Beetles fly quite well.

Giant Black Water Beetle

Correction:  April 6, 2012
Thanks to a comment from MichaelH, we are linking to the correct species on BugGuide.  The Giant Black Water Beetle is also known as the Giant Water Scavenger.

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What's That Bug? does not endorse extermination
Location: California

5 Responses to Giant Black Water Beetle, not Diving Beetle

  1. MichaelH says:

    also looks like Hydrophilus triangularis

  2. Danielle says:

    what kind of bug is this…in S. California, Big, Round, Fast flying and fast turns, buzz like a bee when it flys by and very Black. Kinda looks like a bubble bee but faster, bigger and black. They seem to follow me when i’m smoking cig outside. Do they bite or sting?

  3. Blondeness says:

    I’ve lived in Sacramento, CA for 13 years. Not until a few years ago did I even know what a Giant Water Beetle was. Until one summer night I ran into them hanging out by our apartment pool. Since then I’ve moved into a house and this year they’ve moved into my garage. Wat can I do to drive them out without killing them!?

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