Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Scorpiones
Family: Vaejovidae

Serradigitus calidus

Chihuahuan Desert Home icon   Scorpions Home icon
Scorpion, possibly <i>Serradigitus calidus

Scorpion tentatively identified as Serradigitus calidus. Photograph by Kari McWest.


Physical Characteristics

Serradigitus calidus is distinguished from other vaejovids by elongated pedipalp fingers with a serrate row of denticles with a large claw-like denticle at the end. This is a small species, to about 25 mm.

Geographic Range

This species was named from Cuatro Ciénegas, Coahuila, México. Stockwell noted a Serradigitus from Rio Grande Village, Big Bend National Park, that might be of this species.


Serradigitus calidus, like the other members of the Vaejovidae, eats spiders and insects.


Literature Cited

Jackman, J. A. 1997. A field guide to spiders and scorpions of Texas. Gulf Press, Houston.

Polis, G. A. 1990. The biology of scorpions. Stanford University Press, Stanford, CA.

Stockwell, S. A. 1986. The scorpions of Texas (Arachnida, Scorpiones). Unpublished Master's Thesis, Texas Tech University, Lubbock.

Web Resources

Scorpions of the Chihuahuan Desert

Scorpions of Texas


Aaron Bodor, June 2006.

A.H. Harris, Last Update: 4 Jul 2006.