Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Species Uroctonus mordax - California Forest Scorpion

Western Forrest Scorpion- Uroctonus mordax mordax - Uroctonus mordax - male Scorpion with young on back - Uroctonus mordax - female Uroctonus mordax mordax??? - Uroctonus mordax Uroctonus mordax? - Uroctonus mordax Scorpion - Uroctonus mordax Pacific Forest Scorpion female with young - Uroctonus mordax - female Pacific Forest Scorpion female with young - Uroctonus mordax - female Scorpion - Uroctonus mordax
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Scorpiones (Scorpions)
Family Vaejovidae
Genus Uroctonus (Forest Scorpions)
Species mordax (California Forest Scorpion)
Identification
Fifth metasomal segment has a ventral median carina which forks to form a "Y" (see photos below). This character, according to Kari McWest (see comments here:1 ), is the "definitive character for U. mordax mordax and U. m. pluridens (which are probably the same)".
Print References
Gertsch, Willis J., and Michael Soleglad. 1972. Studies of North American Scorpions of the Genera Uroctonus and Vejovis (Scorpionida, Vejovidae). Bull. Amer. Mus. Nat. Hist. Vol. 148 (4) pp.547-608.(PDF format)
Hjelle, J.T. 1972. Scorpions of the northern California coast ranges. Occasional Papers of the California Academy of Sciences 92 : 1–59. (can be ordered from CAS; download catalog of Occasional papers)