Harlequin Flower Beetle (Gymnetis caseyi)

Order: Coleoptera
Family: Scarabaeidae
Genus: Gymnetis
Species: caseyi


This bug has been reportedly found in the following regions:

Deland, Florida
Orlando, Florida
Sanford, Florida
Austin, Texas
Ballinger, Texas
Big Sandy, Texas
Blanco, Texas
Corpus Christi, Texas
Deer Park, Texas
Goldthwaite, Texas
Grand Prairie, Texas
Mathis, Texas
Show all

Members' Notes:


On Aug 12, 2021, Marples from Orlando, FL wrote:

I\'ve been noticing these beetles in my garden now for the past two years on a regular basis. Tend to hang out near the compost bins. I\'m in Orlando, FL just four mile north of the Airport.


On May 9, 2021, Wendy4934 from Deland, FL wrote:

Deland Florida
I woke up to one of these on the inside of my (upstairs)bedroom window. I just pushed the screen open and let it back out.


On May 6, 2020, Mechman0124 from Corpus Christi, TX wrote:

Found one of these beautiful beetles on my corn this evening! Big sturdy fellow with great coloration! I guess he was feeding on the pollen tassels.
I've never been lucky enough to run into one of this so far down south but I'd read that they range all the way down to the Rio Grande.

Abducted him for a bit, got some good pictures of him as he roamed around on my arm, and turned him loose right back where I found him. I hope they lay some eggs in the wood pile; I'd love to see more of them around. They're pollinators, which are always welcome.

Here's are the pictures of him.
[[email protected]]
[[email protected]<... read more


On Apr 26, 2020, Mama_Meow from Sanford, FL wrote:

I had ordered some live plants from 2 companies. Shortly thereafter, I discovered this beetle on an Angels Trumpet plant that was delivered. My son found another one a few days later, also inside our screened-in balcony. I don't know if the beetles came in on the plants or managed to get inside the screen on their own, but they scared the crap out of me! Glad to know they're not harmful to my plants, right?


On Jun 7, 2018, Bullman1 from Goldthwaite, TX wrote:

Found some of these today on some cactus flowers. There’s probably 5-6 on each flower.


On Jun 7, 2018, Lulu12345 from Deer Park, TX wrote:

I just found this beetle at the base of our pear tree. I've never seen one before and unable to find much info on the web. Unfortunately, it is dying from pesticides. Our tree is very large and old with parts of the trunk decaying and has become a haven for disgusting tree and/or wood roaches. (Hundreds of roaches!) This year, the pears are plentiful! Must be the actual winter season we had.

I will say, this beetle is quite large! 1 inch long!

Location found: Deer Park, Texas


On Jul 25, 2017, draconisj4 from Grayland, WA wrote:

I raise these beetles as pets. In nature the adults are pollinators eating flower pollen and nectar. They will also eat rotting fruit.The larva eat decayed wood and rotting plant matter. They are not harmful.


On Jun 25, 2017, Brenda12357 from Ballinger, TX wrote:

I am finding them on sunflower stems for the first time this year. It is my 3rd year to grow sunflowers. I haven't seen them move but they changed places when I wasn't looking. Don't know if they are harmful.
I live in Ballinger, Tx.


On Nov 19, 2006, TexasPuddyPrint from Edinburg, TX wrote:

Harlequin Flower Beetle (gymnetis casey Antonie) - subfamily - cetoniinae, tribe - cetoniini

We get this beetle at fruit and bait stations. Very unusual markings and I enjoy seeing them. I've never seen more than one or two at a time.