05/20/2026
Cottonwood borer beetle on a stem in our old yard, one of the biggest and most striking beetles in North America.
At the time of taking these photos, I hadn't seen one since I was around 8 years old, spending hours with my face pressed up to the peeling cottonwood bark in our front yard, watching the ants and these black and white giants move around. My husband CJ and I found this one in 2022 near an old tree at our previous house in Lavon, TX. It had been 21 years between sightings for me.
It was such a cool shared experience.
A few things I learned looking into the Cottonwood borer beetle. They're one of the largest beetles in North America, reaching up to 1.5 inches, and their antennae are often longer than their entire body. The larvae live in cottonwood, poplar, and willow roots for two full years before emerging as adults, and once they emerge the adults only live about a month. That's a lot of waiting underground for a short month above it.
They also get mistaken constantly for the invasive Asian longhorned beetle, but cottonwood borers have way more white markings and solid black antennae.
The Asian longhorned has banded antennae and fewer spots. Worth knowing the difference if you ever spot one and want to report it correctly.
The small things are easy to miss if you're not looking. CJ was actually the one who spotted this beetle while we were walking the property at sundown. He just stopped and went, what is that? 21 years of waiting and he found it first.
Video of this one coming to my page soon.