Currently viewing the category: "Water Beetles"
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Subject: Sweet smelling water bug
Location: North and South Carolina
August 2, 2012 8:21 am
There is a water bug that skims across the surface of rivers that if you can catch one and smell it’s tummy it smells sweet like strawberries. Do you know what kind of bug this is or why it smells like that? It is tear shaped with tiny legs you can only see when it is flipped over. Also, they always seem to be in groups.
Signature: curios hiker

Whirligig Beetles

Dear curios hiker,
These are Whirligig Beetles in the family Gyrinidae.  We are very intrigued by your description of their smell.  We checked BugGuide‘s family page, but there is no mention of Whirligig Beetles smelling like strawberries, however, in the genus page for
Dineutus, one of four genera in the family recognized by BugGuide, we did find the statement:  “When disturbed, adults produce a defensive secretion that smells like apples.”  There is also mention that another common name is Apple Bug.  This is brand new information for us.  Even though we are quite familiar with Whirligig Beetles and collected them in our youth, we never noticed their odiferous character.  Whirligig Beetles are known for whirling about in circles on the surface of ponds, lakes, calm rivers and calm streams.  BugGuidealso notes that  they “can form rafts of immense numbers on lakes.”

Whirligig Beetle

Thank you!  This is definitely the same insect.  If you happen to come across them again I would suggest smelling their tummies.  Very carefully hold one between thumb and pointer finger and lift the underside to your nose.  Some do tend to give off a stronger scent than others.  Also, they tend to be more odoriferous he sooner you smell them after capture.  I still say they smell more like strawberries than apples.  Perhaps different versions smell different?  Thank you again for your response.  Have a great day!
curious hiker  (the misspelling was driving me crazy  lol)

We thought you were looking for curios in curio shops while hiking.

Lol, thanks for giving me more credit than I deserve.  But, no I just wasn’t paying attention to what I had typed. 🙂

 

What's That Bug? does not endorse extermination

Big Beetle in Alberta already!?
Location: Calgary AB canada
April 12, 2012 11:25 am
Hello, found 6 of these on my driveway last night around 10 pm.
Signature: dont know what this means

Predaceous Diving Beetle

Your large beetle is an aquatic insect known as a Predaceous Diving Beetle in the genus Dytiscus, we are linking to the BugGuide page for the genus.  Though aquatic, they are capable of flight which serves them well so they can fly to a new habitat if a pond dries out. 

Thank You very much for you prompt reply, much appreciated. Hopefully they find a pond with mosquitoes they can munch on.
-Brandon

What's That Bug? does not endorse extermination

Large black beetle found 4/1/11 in Indiana
Location: Hamilton County, Indiana
April 2, 2012 10:56 am
I found this beetle walking in the woods on April 1, 2012. It was in Hamilton County in Central Indiana at around 7:30pm. The photos aren’t the best because I only had my cell phone with me. In person, it had a beautiful irredescent green that ran down the middle of the back. The park has some creeks, a swamp, and a marsh, prairie and forest all in 127 acres. I would like to know the name of it to see if I can learn some more information about this insect I had never seen before so I could share this information with others if I see it again.
Signature: Just curious

Giant Black Water Beetle

Dear Just curious,
This is an aquatic Predaceous Diving Beetle in the family Dytiscidae, and though we don’t get too many submissions of Predaceous Diving Beetles, the letter we just posted from California was also a representative of this family.  See BugGuide for additional information on the family.  We would love a professional opinion regarding the species.

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.

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.

What's That Bug? does not endorse extermination

Wondering what this is?
Location: Bemidji, MN (Northern MN)
January 27, 2012 6:34 am
Hello,
My little 4 year old and I were trying to Google and identify this tonight. We were unsuccessfull so I’m writing to you for help. We took these pictures on 4/25/2011 at 10pm. It was outside our side door of the garage. We lived in the woods, thick with almost 40 year old red pines (planted as a tree farm, and then a couple homes were built within). Within a quarter mile is a small stream and wet land area. Hope this helps.
Signature: Thank you! Krissy H.

Predaceous Diving Beetle

Dear Krissy,
This is a Predaceous Diving Beetle, and as its name indicates, it is an aquatic insect, however, it is also capable of flight if its pond dries out, runs out of food, or it seeks a mate.  It is in the family Dytiscidae (See BugGuide) and we cannot provide you with an exact species name, but perhaps Markikavana will write in with an identification.  The predatory larvae of Predaceous Diving Beetles are sometimes called Water Tigers.

Daniel,
Thank you so much.  I really appreciate it!  I think I made a donation to your site the day you sent me this email, now I can’t find a receipt.  Can  you tell if I indeed made the donation, sometimes I sit down to do something and can finish it due to my 4 year old–he doesn’t like it when I’m on the phone or computer.
Thanks again!
Krissy Hughes

Thanks for your kind intentions Krissy.  We will copy our webmaster who keeps track of website finances to see if he can verify the donation.

What's That Bug? does not endorse extermination

large beetle
Location: southern Alberta Canada
September 9, 2011 10:11 pm
Hi Bugman
I live in southern Alberta on the Praires, it is Sept 9, 2011, opened up the truck door and this large dark green beetle was crawling across the floor.
Signature: Puzzled on the Praires

Predaceous Diving Beetle

Dear Puzzled on the Praires,
This beautiful beetle is a Predaceous Diving Beetle in the family Dytiscidae, but we are not certain of the species as many member is the family look similar, as you can see if you browse through the images on BugGuide.

Thank you very much for identifying this beetle.
This year we have a large slough on the south side of our acreage, the Diving beetle probably came from there.  I put it in my garden, guess I should have put it in the water.  I was surprised when I found it in my truck, it must have flew in there.
Again thank you, your bug web site is wonderful, we have lots, I mean hundreds, of dragonflies in the garden and I have looked up several of them on your site.
Keep up the good work. Cheers

What's That Bug? does not endorse extermination