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

Subject:  Wasp, hornet, or bee?
Geographic location of the bug:  Blue Ridge Mountains, Clarke County, VA
Date: 03/30/2020
Time: 03:24 PM EDT
Your letter to the bugman:  I noticed 2 or more dozen of these in a firewood pile I have on the side of my yard. I need to stack it to season for next winter. I don’t necessarily want to disturb bees if that’s what they are but I also don’t want to get stung by a swarm and find out if I’m allergic if they are Hornets or wasps.
How you want your letter signed:  Ross

Banded Ash Borer

Dear Ross,
This isn’t a “wasp, hornet, or bee” but rather a Longhorned Borer Beetle in the genus
Neoclytus, probably the Banded Ash Borer, a native species that we identified on BugGuide.  According to BugGuide:  “Adults emerge May-Aug in the North, Feb-Nov in the South” and “often emerges indoors from firewood; sawlogs may become infested within 20 days of felling during summer.”  You will not be stung if you stack the wood.

What's That Bug? does not endorse extermination

Subject:  Beetle? What is this?
Geographic location of the bug:  Southern California
Date: 02/27/2020
Time: 08:13 PM EDT
Your letter to the bugman:  What kind of bug is this and will it bite? Does it fly?
How you want your letter signed:  Kayla

Spotted Tree Borer

Hi Kayla,
This is a Longhorned Borer Beetle in the family Cerambycidae, and we are very confident that it is a Spotted Tree Borer,
Synaphaeta guexi, based on images posted to the Natural History of Orange County site.  It does fly and it has very strong mandibles it uses to chew its way to the surface after it matures from a wood boring larva to a winged adult.

What's That Bug? does not endorse extermination

Subject:  Yellowjacket or Cricket?
Geographic location of the bug:  New Jersey
Date: 09/22/2019
Time: 08:48 PM EDT
Your letter to the bugman:  This bug landed on me and later seemed to “fly” away like a grasshopper. It wasn’t behaving like a wasp and it’s head and body shape don’t look wasplike. What is it???
How you want your letter signed:  Libby

Locust Borer

Dear Libby,
This Locust Borer is actually a beetle that is a very effective Yellowjacket mimic.  Locust Borers are often found on Goldenrod.

What's That Bug? does not endorse extermination

Subject:  What is this?
Geographic location of the bug:  Winston-Salem, NC
Date: 09/06/2019
Time: 03:11 AM EDT
Your letter to the bugman:  These photos were taken on 07/31/19 in the parking lot of a suburban park. The body of the insect shown was about 1 inch long.
How you want your letter signed:  Amanda T.

Longicorn:  Neoclytus mucronatus

Dear Amanda,
This is a Longicorn or Longhorned Borer Beetle in the genus
Neoclytus, and it has no common name.  We believe we have correctly identified it as Neoclytus mucronatus thanks to this image on BugGuide.  It is one of the species that mimics a stinging wasp like a Paper Wasp for protection as the beetle does not sting, but potential predators are put off by the warning colors.

Longicorn: Neoclytus mucronatus

Thanks for the swift response! I’m glad you were able to ID this for me. The markings on the wing casings kept me from seeing that it was any kind of beetle. I guess mimicry works to fool amateur entomologists too.
-AT

What's That Bug? does not endorse extermination

Subject:  invasive Longhorn beetle or native?
Geographic location of the bug:  South Texas
Date: 08/26/2019
Time: 12:42 AM EDT
Your letter to the bugman:  Found this beetle and i was wondering what kind is it and if it is native of Texas
How you want your letter signed:  Gabe

Flat Faced Longhorn is Neoptychodes trilineatus

Hi Gabe,
Your images are quite artful.  This is a Round Headed Apple Borer, a native to North America.  According to the Michigan State University Integrated Pest Management System:  “Attack apples mainly, but most deciduous tree fruits are susceptible. The larvae dig tunnels, most often at the base of the tree trunk. The roundheaded borer leaves accumulations of reddish frass at the entrance of galleries. Infested trees have a sickly appearance, producing sparse, pale-colored foliage (C). Continued yearly attacks can kill the tree or weaken it so that it is broken off by the wind. Young trees that have been girdled will often bloom profusely and set a heavy crop of fruit and then die in the process of bringing it to maturity.”

Neoptychodes trilineatus

Correction: Neoptychodes trilineatus
We just received a comment from Brady Richards correcting this misidentification.  According to BugGuide:  “Although Ficus is the primary host, larvae also develop in Alnus, Morus, Salix, Celtis. ”

Neoptychodes trilineatus

What's That Bug? does not endorse extermination

Subject:  Bug Mimics Wasp Colours
Geographic location of the bug:  Ontario, Canada
Date: 08/25/2019
Time: 11:16 PM EDT
Your letter to the bugman:  Just curious to know what this is.  I couldn’t find anything online with the same markings.
How you want your letter signed:  Melissa

Sugar Maple Borer

Dear Melissa,
This gorgeous beetle is a Sugar Maple Borer, and it is a very effective mimic of Yellowjackets.  Sugar Maple Borers have become increasingly rare in recent years, so your sighting is significant.

Sugar Maple Borer

What's That Bug? does not endorse extermination