Scorpion tentatively identified as Serradigitus calidus. Photograph by Kari McWest.
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.
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.
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 Unpublished Master's Thesis, Texas Tech University, Lubbock.
Scorpions of the Chihuahuan Desert
Aaron Bodor, June 2006.
A.H. Harris, Last Update: 4 Jul 2006.