Local Pest Guide

Acheta domesticus

House crickets are small, light brown insects often found indoors. They thrive in warm environments and are usually attracted to house lights at night. While they don’t pose a health risk, their chirping can drive you up the wall, and they can cause minor damage to fabrics and paper goods.

Centruroides sculpturatus

The Arizona bark scorpion is the most venomous scorpion in North America. Light brown and 2–3 inches long, they are excellent climbers and can scale walls and ceilings. They're commonly found in the Prescott area, especially during warmer months when they enter homes seeking water and shelter.

Latrodectus hesperus

The western black widow is identified by its shiny black body and signature red hourglass marking on the underside of the abdomen. Their messy, irregular webs are often found at ground level in sheltered, undisturbed areas. While bites are rarely fatal, they require medical attention.

Loxosceles arizonica

Arizona's brown spiders are relatives of the brown recluse. Tan to dark brown with a violin-shaped marking on the back, they're shy and nocturnal. Bites can cause tissue damage and require medical attention. They favor dark, undisturbed spaces, making stored boxes and closets common habitats.

Neotoma spp.

Pack rats are notorious in the Prescott area for chewing vehicle wiring, nesting in attics, and hoarding shiny objects. They build large, messy nests called middens from sticks, cactus pads, and collected debris. A single pack rat can cause thousands of dollars in vehicle damage overnight.

Pogonomyrmex / Camponotus spp.

Prescott is home to several ant species. Harvester ants build large mounds in yards and deliver painful stings. Carpenter ants tunnel through moist or damaged wood to nest — they don't eat wood but can cause structural damage over time. Both species are most active during Arizona's monsoon season.

Blattella / Periplaneta spp.

German and American cockroaches are the most common species in the Prescott area. They're attracted to moisture, warmth, and food sources. Cockroaches can trigger asthma and allergies, contaminate food, and spread bacteria. They reproduce quickly — a single German cockroach pair can produce thousands of offspring in a year.

Vespula / Polistes spp.

Paper wasps and yellow jackets are common in the Prescott area, especially around homes with outdoor dining areas. Paper wasps build open, umbrella-shaped nests under eaves. Yellow jackets nest underground or in wall voids and become increasingly aggressive in late summer as colonies grow larger and food sources diminish.

Hogna / Lycosidae spp.

Wolf spiders are large, hairy ground-dwelling hunters common throughout Northern Arizona. Unlike web builders, they actively chase prey. They're often mistaken for tarantulas due to their size. Bites are uncomfortable but not medically significant. They frequently wander into homes during temperature swings.

Loxosceles deserta

Closely related to the brown recluse, the desert recluse is found throughout Arizona's lower elevations and occasionally creeps up into the Prescott area. Identified by a violin-shaped marking and only six eyes (most spiders have eight). Bites are uncommon but can cause necrotic tissue damage requiring medical care.

Mus musculus

House mice are prolific breeders that quickly establish indoor populations once inside. A single female can produce 5–10 litters a year. They contaminate food, gnaw wiring, and spread disease. Prescott's cool winters drive them indoors for warmth and food, making fall the most common time for new infestations.

Peromyscus maniculatus

Deer mice are the primary carriers of hantavirus in the Southwest, making them a serious health concern in Northern Arizona's rural and forested areas. Identified by their bicolored tail and white belly, they prefer rural and wooded settings around Prescott, Chino Valley, and Prescott Valley. Never sweep or vacuum dry droppings — always wet-clean.

Dasymutilla spp.

Despite their name, velvet ants are actually wingless wasps. The bright red-and-black females are commonly seen running across open ground in Northern Arizona summers. Their sting is famously painful — earning the 'cow killer' nickname — though not medically dangerous to most people. Children and pets are most at risk.

Scolopendra polymorpha

Desert centipedes are large (4–7 inch) predatory arthropods found throughout the Prescott area. Their bite delivers a painful venom that causes intense localized pain, swelling, and occasionally nausea. They're nocturnal hunters that often enter homes during monsoon season seeking moisture and prey insects.