The Giant Desert Hairy Scorpion (Hadrurus spadix) is dark brown to blackish-brown, uniformly colored and typically measures 4–5 inches. The giant desert hairy scorpion (Hadrurus spadix) is closely related to Hadrurus arizonensis and is similarly large, reaching 4–5 inches in length. It is distinguished by its darker, more uniformly br.

The Giant Desert Hairy Scorpion is generally low-risk, but caution is still advised. Sting produces localized pain and swelling comparable to a bee sting. Not medically significant for healthy adults. Seek medical attention for stings in children, elderly individuals, or those with allergies.

In Arizona, giant desert hairy scorpions are most often encountered in the following situations: Large burrow openings in hard-packed desert soil. Nighttime sightings in desert areas or near structures adjacent to open desert. Glowing green under UV blacklight.

The Giant Desert Hairy Scorpion is most active during: Year-round; most active April–October. Arizona's warm desert climate can extend activity periods compared to other states, so year-round vigilance is recommended in the Phoenix metro and surrounding areas.

Seal ground-level gaps around the foundation and garage. Wear closed-toe shoes outdoors at night. Remove debris and rock piles near the home.

Perimeter treatments and exclusion work. Less common inside homes; treatment focuses on outdoor harborage areas and entry point sealing.

Yes — like all scorpions, Giant Desert Hairy Scorpions fluoresce bright green under UV (blacklight) illumination. Scanning your yard, garage, and home perimeter with a UV flashlight after dark is one of the most effective ways to locate and monitor scorpion activity. Pest Control Bros recommends this technique as part of any scorpion management program.