Currently viewing the category: "Water Beetles"

Subject:  Bug I.D. please
Geographic location of the bug:  Curtis, Washington
Date: 12/03/2017
Time: 10:41 PM EDT
This beetle/bug landed on our porch tonight just at dusk.  I took a couple of photos and it flew off, straight up for at least 50 feet.  It is about 1.5 inches long.  Does anyone know what type of beetle it is? I live in Western Washington State and this photo was taken today, Dec.3rd
How you want your letter signed:  Sparty

Boreal Diving Beetle

Dear Sparty,
After you went through the trouble to create a composite view of this Predaceous Diving Beetle, we cropped it back into two distinct images.  We believe your individual, because of your location and the grooved elytra or wing covers, that this is a Boreal Diving Beetle,
Dytiscus alaskanus.  According to BugGuide, its range is:  “Transcontinental in Canada and Alaska, also present in parts of n. US as far south as Colorado” and “Overwinter as adults in permanent waters.”

Boreal Diving Beetle

Subject:  Skimming around on the edge of my pond
Geographic location of the bug:  Tampa, Fl.
Date: 11/29/2017
Time: 03:11 PM EDT
Found these guys zooming around our pond. Tried to get closer for a shot but they zip off.
How you want your letter signed:  Curiously

Whirligig Beetles

These are Whirligig Beetles in the family Gyrinidae.  Of the genus DineutusBugGuide states: “Found on the surface of streams/rivers, ponds, lakes (can form rafts of immense numbers on lakes).” 

Subject:  Crazy looking flying something
Geographic location of the bug:  Bellingham washington
Date: 10/24/2017
Time: 12:33 PM EDT
Good day,
I was outside just as it was getting dark and I heard a weird bug flying around. Well it was a big something and then I notice a few more over by the house. It’s fall time here and nights get down to the 40’s.
I am sending a phone I took please feel free to use it.
How you want your letter signed:  TJA

Predaceous Diving Beetles

Dear TJA,
These are Predaceous Diving Beetles in the family Dytiscidae, but it is going to take someone with more expertise in the family to provide you with a species identification.  Though they are primarily aquatic, as you observed, they are capable of flight.  According to BugGuide:  “Adults with long hairs on hind tibiae and other modifications for swimming; move their hind legs together like oars, like Backswimmers do.”

Subject:  Found bug never seen before
Geographic location of the bug:  North Dakota…
Date: 09/10/2017
Time: 10:47 PM EDT
Could you help us identify this couldn’t be found anywhere on internet.
How you want your letter signed:  Rhonda Delzer

Remains of a Predaceous Diving Beetle

Dear Rhonda,
You have discovered the remains of a Predaceous Diving Beetle in the family Dytiscidae, possibly a Harris’s Diving Beetle,
Dytiscus harrisii, which we found pictured on BugGuide.  A bird or other predator has eaten the soft, nutritious abdomen and left the harder, less edible parts like the head, thorax and elytra for you to find.

Subject: New Jersey leech like insect
Location: Gloucester County New Jersey, USA
August 2, 2017 8:17 pm
I have standing water on my property that is there from rain, not spring feed, today while looking at the water, I noticed these flat brownish insects in the water, I don’t remember seeing these bugs before, I thought they might be leeches but every picture I googled of leeches showed them being black. Also these bugs have pitchers, please help, thank you,
Signature: D. Clement

Water Tiger and Tadpoles

Dear D. Clement,
This appears to be a predatory larva of an aquatic beetle, commonly called a Water Tiger.  It is surrounded by Tadpoles, and they are most likely its prey.

Subject: what is this?
Location: Preston county West virginia
June 30, 2017 5:29 pm
I found this while cleaning my pool. Could you please tell me what it is. The pool was drained to clean leaves at the bottom left from the fall.
Signature: not in my pool

Aquatic Beetle Larva

The best we can do is identify this as the aquatic larva of a Water Beetle.