Currently viewing the category: "Ground Beetles"
What's That Bug? does not endorse extermination

Subject: Should I be worried
Location: Southern Ontario
May 18, 2016 6:35 pm
Found this bettle with pincers in my house in southern Ontario today. Please help me identify.
Signature: Help pls.

Big Headed Ground Beetle

Big Headed Ground Beetle

This is a predatory Big Headed Ground Beetle in the genus Scarites, and it is perfectly harmless.  It will not hurt you or damage your home.  Your individual appears to be covered in dust as this species is generally a shiny black color.

What's That Bug? does not endorse extermination

Subject: Beetle?
Location: Whittier, CA
May 18, 2016 4:48 pm
We found this Beetle in our garage. It is May 2016, about 445p in Whittier, CA.
It was between some boxes on the floor.
We looked at your site and think it’s a Stink Beetle but weren’t 100% sure.
Thank you!
Signature: Cunningham Family

Caterpillar Hunter

Caterpillar Hunter

Dear Cunningham Family,
This is one of the Caterpillar Hunters in the genus
Calosoma, and interestingly, we just posted a gorgeous image of a relative known as the Fiery Searcher.  We have always considered the black Caterpillar Hunters found in Southern California to be Calosoma semilaeve, though the species is not represented on BugGuideBugGuide now has a posting of a black member of the genus from Southern California that is identified as Calosoma parvicolle and we would not entirely rule out that as your species.

Caterpillar Hunter

Caterpillar Hunter

What's That Bug? does not endorse extermination

Subject: What’s green and black with a red stripe?
Location: Fairfax, Virginia
May 18, 2016 9:22 am
After deciding he wasn’t an emeral ash borer i let this guy continue walking in tne parking lot in Northern Virginia. He’s about an inch long. Any ideas what he is?
Signature: Amy

Fiery Searcher

Fiery Searcher

Dear Amy,
The Emerald Ash Borer is a very small insect.  This gorgeous Ground Beetle is one of the Caterpillar Hunters that goes by the name Fiery Searcher,
 Calosoma scrutator.  Both larvae and adults voraciously eat caterpillars, and according to BugGuide:  “Adults will climb trees in search of their prey.”

Thank you! Now I wish I had helped him over to a tree instead of leaving him amble across the parking lot.
I keep hearing in the news about emerald ash borers being pretty green “bugs” that are devastating, but all I knew was to look out for green insects that may or may not be true bugs. I’m glad your site was there to let me know he wasn’t one of those!
Best,
Amy

What's That Bug? does not endorse extermination

Subject: What kind of Insect is this?
Location: Malvern, AR
April 12, 2016 8:22 pm
Found him in my house.
Signature: Isaac

False Bombardier Beetle

False Bombardier Beetle

Dear Isaac,
We just made a relatively lengthy posting on the False Bombardier Beetle a few days ago.  This beneficial predator has a unique chemical defense mechanism.

What's That Bug? does not endorse extermination

Subject: Found this bug, what is it?
Location: Ohio
April 9, 2016 9:43 pm
Hello! I woke up one night to find this bug crawling on me! It scared the crap out of me cause my daughter was in bed with me and I was afraid of it hurting her. I threw the bug off of me and just tried to forget about it. The next day I found it crawling in my bathtub. I live in Chillicothe OH and have never seen a big like this before. I tried to look it up and found nothing. Help me out and let me know if it’s dangerous or anything. Thank you :)
Signature: Ashley

False Bombardier Beetle

False Bombardier Beetle

Dear Ashley,
This is a False Bombardier Beetle in the genus
Galerita, and like many other Ground Beetles, they are predators with strong mandibles that may deliver a pinching, but not dangerous, bite if carelessly handled.  BugGuide does caution:  “These beetles have chemical defenses” and by following the link provided on BugGuide, we found the Proceedings of the National Academy of Sciences of the United States of America PNAS site which has a lengthy paper beginning with “The carabid beetle Galerita lecontei has a pair of abdominal defensive glands that secrete a mixture of formic acid, acetic acid, and lipophilic components (long-chain hydrocarbons and esters). Formic acid, at the concentration of 80%, is the principal constituent. The beetle ejects the secretion as a spray, which it aims accurately toward parts of the body subjected to assault. ”  While coming into contact with the spray may cause local irritation, no lasting ill effects are expected for either persons or pets.  The chemical defense is a deterrent that might help prevent the False Bombardier Beetle from being eaten as the disagreeable taste will cause a predator to spit out the beetle.

What's That Bug? does not endorse extermination

Subject: What kind of bug is this
Location: Dragon run river/swamp near Saluda, Virginia
March 13, 2016 5:50 am
Hi, hoping you can tell me about this bug found this morning in the house.
We live in Virginia, near Saluda, near the dragon run River/swamp. Found early morning on 13 March 2016. We are very wooded and rural.
Signature: James

False Bombardier Beetle

False Bombardier Beetle

Hi James,
We are currently scrolling through unanswered mail from March, searching for nice images and postings that may be of interest to our readership.  This is a False Bombardier Beetle in the genus
Galerita.  According to BugGuide:  “Open woodlands, under stones, leaves. Come to lights, sometimes wander into houses” and “Adults eat other insects, especially caterpillars.”

Daniel,
Thank you for the response and information.  I have bookmarked the ‘bug guide’ website.  Should prove useful in the future.
Thanks again,
James

What's That Bug? does not endorse extermination