Catalinia

Distinguished from Pseudouroctonus by smaller adult size, more slender pedipalps with shorter fingers, and reduced number of cheliceral teeth. Differs from other Vaejovidae genera by the combination of small body size, thin metasoma, and specific trichobothrial arrangements on the pedipalp chela. Identification to species level requires examination of male hemispermatophores and detailed counts of pectinal teeth and metasomal segments.

Rocky habitats in arid and semi-arid regions, including talus slopes, rocky outcrops, and canyon walls. Often found in crevices and under stones in mountainous terrain. Elevation range extends from lower desert elevations to mid-elevation montane zones.

Southwestern United States (Arizona, New Mexico, southern California) and adjacent northern Mexico (Sonora, Chihuahua). Distribution centered on the Sky Islands and associated mountain ranges of the Sonoran and Chihuahuan Deserts.

Nocturnal, sheltering in rock crevices during daylight hours. Emerges at night to forage for prey.

Predator of small invertebrates in rocky desert ecosystems. Serves as prey for larger arthropods, reptiles, birds, and small mammals.

Venom toxicity is low; not considered medically significant to humans. Occasionally encountered by hikers and rock climbers in mountainous desert regions. Of interest to arachnologists studying scorpion biogeography and systematics.

• PseudouroctonusFormerly included species now placed in Catalinia; distinguished by larger body size, more robust pedipalps, and different cheliceral dentition
• VaejovisOverlapping distribution and habitat; distinguished by larger size, different trichobothrial patterns, and more robust metasoma

• scorpion
• vaejovidae
• southwestern north america
• rocky habitat
• nocturnal

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life