The giant vinegaroon is an arachnid in the family Thelyphonidae. This species is found in the American southwest and Mexico.
The vinegaroon is nocturnal and has poor vision. The whiplike tail is used as a sensory organ, as is the first pair of legs, which is not used for walking. Although its tail in unable to sting, this creature can spray an acidic mist from a scent gland at the base of the tail when disturbed. The spray is 85% concentrated acetic acid/vinegar, hence the common name "Vinegaroon." The heavy pinching mouthparts (modified pedipalps) can also inflict a painful bite. Although very unlikely to attack humans, it can certainly defend itself if provoked.
Lat: 32.42, Long: -104.23
Spotted on Jul 23, 2005
Submitted on Jan 11, 2012
and 3 other people favorited this spotting