A favorite pastime of us desert dwellers—scorpion hunting! The Arizona Bark Scorpion is one of the most venomous scorpions. How fortunate are we here in Phoenix to have them in our own backyard (literally). They glow under black light.
Happy hunting! 🦂🔮
(We don’t really enjoy the hunt, but it’s them or us…)
... Read moreSCORPIONS GLOW! Ever seen one up close? It's truly one of the most mesmerizing, and frankly, unsettling natural phenomena you'll witness living in the desert. My first time spotting one under a black light, I was absolutely captivated by that eerie, fluorescent blue-green shimmer. It’s like something out of a sci-fi movie, but it's happening right in my Phoenix backyard!
So, why do scorpions glow? Scientists believe this amazing luminescence comes from a substance in their cuticle, the outer layer of their exoskeleton, specifically within a hyaline layer. This substance reacts to ultraviolet (UV) light, causing it to fluoresce. While the exact evolutionary purpose is still a bit of a mystery – perhaps it helps them find each other, or maybe acts as a form of sunblock – it certainly makes our nighttime scorpion hunts a lot more effective. You can literally just walk around with a black light flashlight after dusk, and they stand out like neon signs against the dark desert floor.
Here in Phoenix, the Arizona Bark Scorpion is our most common, and unfortunately, most venomous resident. They're usually light brown, small, and can be tricky to spot with the naked eye during the day. But when the night falls and the black light comes out, their secret glow reveals them. I've heard others describe their glow as sometimes having a slight purple hue, depending on the black light used and the scorpion's age. It's a fascinating detail, but the main thing is, the glow makes them visible when they're otherwise perfectly camouflaged.
Dealing with these little critters is a part of desert living, and it quickly becomes a routine. My family and I often do a “scorpion sweep” around the house and yard. It's not a recreational hunt, but a necessary one to keep our home safe. We focus on areas where they like to hide: under rocks, in cracks, behind landscaping, and especially near sources of moisture. Wearing sturdy shoes and thick gloves is a must, and we use long tongs or a shovel to safely remove them. Prevention is key too; sealing cracks in foundations, ensuring tight-fitting screens on windows and doors, and keeping clutter away from the house perimeter can drastically reduce their numbers. It’s an ongoing battle, but knowing they glow gives us a fighting chance.
I’ve learned that while the glow is beautiful in an otherworldly sense, it’s a constant reminder of the unique challenges and wonders of living in this beautiful, wild desert. It’s a part of our nightly routine, a strange blend of fascination and vigilance. If you're ever in a scorpion-prone area, grabbing a black light is definitely the first step to becoming a desert detective!