Vinegaroons live across the tropics and subtropics on four continents: North America, South America, Africa, and Asia. They occupy a surprisingly wide range of habitats, from bone-dry deserts in the American Southwest to dense rainforests in Southeast Asia and the savannas of West Africa. If you live in Texas, Arizona, or Florida, vinegaroons may be closer than you think.
Global Range Across Four Continents
The order Thelyphonida is spread across a broad tropical and subtropical belt. In Asia, vinegaroons are found in Bangladesh, Bhutan, China, India, Indonesia, Myanmar, Sri Lanka, and Thailand, where they typically inhabit rainforest floors. In Africa, they occur in Burkina Faso, Guinea-Bissau, Senegal, and The Gambia. South American species live in the Amazonian and Andean regions of Brazil, Colombia, French Guiana, Guyana, Suriname, and Venezuela. And in the Caribbean, a genus is endemic to the island of Hispaniola, found in both the Dominican Republic and Haiti.
Despite this wide distribution, vinegaroons are not found on every continent. They are absent from Europe, Australia, and Antarctica. Their range is limited to regions that stay warm enough year-round to support their burrowing, nocturnal lifestyle.
Where They Live in the United States
Three distinct species of giant vinegaroon live in the U.S., each in a different state. One species is found in Texas, one in Arizona, and one in Florida. For years scientists treated all American vinegaroons as a single species, but a 2018 revision of the group raised the count in North America from one species to seven, with three in the U.S. and six in Mexico (two overlap both countries).
The Arizona species ranges into northeastern Sonora, Mexico, while the Texas species may extend into the Lower Rio Grande Valley and connect with populations in the Mexican state of Tamaulipas. The Florida species is found only in Florida, nowhere else in the world. Mexico hosts the greatest North American diversity, with species spread across central and northern regions of the country.
Deserts, Grasslands, and Scrub Forests
Vinegaroons are most commonly associated with arid desert landscapes, but their habitat preferences are broader than most people expect. In Texas and Arizona, they favor dry, rocky terrain with loose soil they can burrow into. In Florida, the same group of animals lives in scrub forests and grasslands, a completely different environment from the Sonoran Desert. They have also been reported in pine forests and mountainous areas, with some found at elevations as high as roughly 6,000 meters.
Tropical species in Asia and South America occupy rainforest floors and savanna edges, where leaf litter and rotting wood provide both cover and a steady supply of insects to eat. The common thread across all these habitats is loose substrate for digging, warm temperatures, and plenty of places to hide during daylight hours.
Life Underground
Vinegaroons are nocturnal burrowers. During the day, they retreat into underground tunnels they dig themselves, or hide beneath rocks, leaf litter, and fallen bark. Their burrows typically reach at least 15 cm (about 6 inches) deep, and even newly hatched young will dig to that depth instinctively.
Burrowing is not just about hiding from predators. It is a survival strategy against temperature extremes. In the Arizona desert, surface temperatures can be lethal, but soil temperatures 15 to 30 cm below the surface, where vinegaroons spend their days, stay within a moderate range. At those depths, temperatures never exceed about 38°C (100°F) or drop below 3°C (37°F). This underground buffer zone allows vinegaroons to thrive in environments that would otherwise be too harsh for an animal that needs moderate humidity to survive.
During cooler months, vinegaroons may stay buried for extended periods. Keepers who maintain them in captivity note that the animals will sometimes disappear beneath the substrate and not resurface until spring, mimicking a seasonal dormancy pattern they follow in the wild.
How Climate Shapes Their Activity
You are most likely to encounter a vinegaroon on the surface during warm, humid nights. In the American Southwest, sightings spike during the summer monsoon season, when rainfall raises humidity and draws the animals out of their burrows to hunt and find mates. This is why residents of cities like Tucson and San Antonio sometimes find vinegaroons on porches or in garages after summer storms.
Their preferred conditions in controlled settings fall between 24 and 32°C (roughly 75 to 90°F) with 30 to 60% relative humidity. In the wild, they select microhabitats that approximate these ranges. Desert populations dig deeper burrows to escape midday heat, while tropical populations rely on the consistent warmth and moisture of the forest floor. The need for burrowing-friendly soil and stable underground temperatures is likely the main factor limiting where vinegaroons can establish populations, which explains their absence from regions with frozen winters or heavily compacted clay soils.