Live specimen of Urodacus `SCO022` (Photo Credit: Mark Harvey)

Urodacus `SCO022`

Scorpions can be found on all continents except Antarctica, and are more diverse in the tropical and arid zones of the globe. They all possess venom, which is held in the telson (stinger) at the end of their modified tail-like abdomen, also called the metasoma. While many species of Australian scorpion can administer a very painful sting (especially members of the Buthidae), none are believed to be fatal to heathy adult humans.
One of the truely amazing abilities of scorpions is that species glow blue-green under ultraviolet light. This unusual quirk is often used by museum researchers to find and collect scorpions in the wild, using battery powered black lights.
Many species of Urodacus in the Pilbara build deep, spiral-shaped burrows in the soil. At night they can be found at burrow entrances and close to their borrows, ambushing prey. This species was collected in Dales Gorge in Karijini National Park at night, and was not associated with a burrow. It is likely that in the gorges, this species resides in cracks and crevices. 

Morphology

This species' body is flattened relative to other borrowing Urodacus, and this likely represents an adaptation to assist in squeezing between rocks to seek shelter during the day.

Evolution

This undescribed species of scorpion has been detected through DNA sequencing work carried out by the Western Australian Museum. This genus likely harbours many more undescribed species, and significant work is required to understand the full species diversity of the genus, and where those species are found. 

Behaviour

This species likely hunts in gorges at night, and hides in cracks and crevices during the day.

Method of reproduction

Sexual

Habitat

Terrestrial

Gorges

Distribution

Karijini National Park.

Taxonomy

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Scorpiones
Family: Urodacidae
Genus: Urodacus
Species: `SCO022`
Rank: species
Commercial Impact: 

None

Conservation Assessment: Least Concern

Net Conservation Benefits Fund

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Western Australian Museum Collections https://museum.wa.gov.au/online-collections/names/urodacus-sco022
Accessed 24 Sep 2025

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