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

Subject:  bug with debris on top
Geographic location of the bug:  southeast Louisiana
Date: 06/03/2020
Time: 08:15 PM EDT
Your letter to the bugman:  There were three of these critters on a tomato plant this May.  At first I just though they were large frass or small bird dropings.  On a closer look, I saw there were leg-like projections. I gently teased the debris off of one and discovered a beautiful, delicite being with what looked like a smiling frog face staring up at me.
How you want your letter signed:  Art

Clavate Tortoise Beetle Larva

Dear Art,
This is the larva of a Clavate Tortoise Beetle, Plagiometriona clavata, and the debris on its back is fecal matter and it thought to act as camouflage or protection for the larva.  Here is a BugGuide image.  According to BugGuide food plants include:  “ground-cherries (Physalis), Jimsonweed (Datura stramonium), and Solanum spp. (Solanaceae)” and tomatoes are in the family Solanaceae.

What's That Bug? does not endorse extermination

Subject:  Pretty beetle found on fishing pier
Geographic location of the bug:  Florida
Date: 02/18/2020
Time: 11:01 AM EDT
Your letter to the bugman:  I found this handsome gentleman hiding in-between two slabs of concrete on a marine fishing pier. He’s very pretty! What does he eat? I’m not entirely sure why’d he prefer being close to the ocean- it just doesn’t look like he belongs!
How you want your letter signed:  Chance Arceneaux

Flea Beetle:  Disonycha pensylvanica

Dear Chance,
We believe we have identified this Leaf Beetle as
Disonycha pensylvanica thanks to this BugGuide image.  According to BugGuide:  “For the most part found near aquatic habitats” and “Normal hosts are Polygonum spp. including smartweed.”

What's That Bug? does not endorse extermination

Subject:  Beetles Matting
Geographic location of the bug:peter Laugheed Park, Alberta, Canada
Date: 08/11/2019
Time: 12:48 AM EDT
Your letter to the bugman:  Found these bettles matting on Foxtail Barley along lake shore. Currious as to what they are.
How you want your letter signed:  Larry Halverson

Mating Red Turnip Beetles

Dear Larry,
Because we quickly recognized these as Leaf Beetles in the family Chrysomelidae, we were able to identify them as mating Red Turnip Beetles,
Entomoscelis americana, on BugGuide.  According to BugGuide:  “occasional pest of canola, rapeseed and mustard in the northern Great Plains; may also damage other crucifer crops (turnips, cabbage). Larvae and adults feed on plants at night.”

Mating Red Turnip Beetles

Thanks for your quick responce. Very interesting – Will let my son-in-law (a canola farmer) know about these as he saw them too although his farm is hunders of miles away
larry
What's That Bug? does not endorse extermination

Subject:  Yellow Beetle
Geographic location of the bug:  Bismarck, ND
Date: 07/25/2019
Time: 07:24 PM EDT
Your letter to the bugman:  The stripes are dark blue and hisses when disturbed. About 1/4” long.
How you want your letter signed:  R. Green

Three Lined Potato Beetle

Dear R. Green,
This looks to us like a Three Lined Potato Beetle,
Lema daturaphila, which is pictured on BugGuide.  There is no mention on BugGuide of stridulation, which is the hissing sound you heard the beetle make by rubbing together parts of its body.  This comment “I remember the first time I heard them squeaking like little birds when I picked them up” appears on another BugGuide posting.

Thank you so much! It does make chirps and squeaks and small hisses. It’s a strange little thing!

What's That Bug? does not endorse extermination

Subject:  Identifying bug on tomato leaf
Geographic location of the bug:  Manassas, Va 20112
Date: 07/10/2019
Time: 12:44 PM EDT
Your letter to the bugman:  I found several of these bugs eating tiny holes in the leaves of my tomato plants! I’ve never seen them before. Usually we have hornworms, but never these! They seem to use that brown stuff as cover to hide when threatened. They raise it up and cover themselves with it. Google was NO help.
How you want your letter signed:  Christina

Tortoise Beetle Larva

Dear Christina,
This is the larva of a Tortoise Beetle and it is carrying its own feces which it uses as camouflage.  We believe it might be a Clavate Tortoise Beetle larva, which is pictured on BugGuide.  According to BugGuide, this species feeds on the leaves of:  “ground-cherries (
Physalis), Jimsonweed (Datura stramonium), and Solanum spp. (Solanaceae)” and this is the plant family that includes tomatoes.

What's That Bug? does not endorse extermination

Subject:  Yellow and Black Beetle
Geographic location of the bug:  Montreal, QC, Canada
Date: 07/04/2019
Time: 10:41 AM EDT
Your letter to the bugman:  I found this yellow and black beetle-like bug standing right next to an open banana peel, and the banana was used to make a smoothie. I do not know if the bug came from the banana and if the banana was strangely coloured because I did not make the smoothie. The peel was quite ripe. I caught the bug and put it in a plastic transparent cup. What is the name of the bug and If the bug came from the banana and I drank the smoothie, will I be ok?
How you want your letter signed:  Michael

Striped Cucumber Beetle

Dear Michael,
This is a Striped Cucumber Beetle, and according to BugGuide:  “The most important hosts, perhaps the only larval hosts, are Cucurbitaceae.”  We don’t know why it was on the banana.

What's That Bug? does not endorse extermination