What's That Bug? does not endorse extermination

July 17, 2010
Location:  Carlsbad, Ca
This scorpion was at the bottom of my neighbors pool. This is the second one they have found. What type is it and is it harmful? How do I keep them out of my yard?
creeped out in Cali

Unidentified Scorpion

Dear creeped out in Cali,
We are uncertain what species of Scorpion drowned in your neighbors pool, but perhaps one of our readers will be able to provide that information since we will be posting your letter.  We do not have any advice for keeping native wildlife out of your yard.  According to BugGuide:  “
The sting of most scorpions is not serious and usually results in localized pain, some swelling, tenderness and some discoloration. Systemic reactions to scorpion stings are rare.  However, the sting of one scorpion, Centruroides exilicauda, can be fatal. Most healthy adults are not at significant risk; the ones most at risk of dying from a sting by Centruroides exilicauda are children. The site of the sting does not become discolored. Another scorpion that has been known to have an intense sting is Centruroides vittatus, but no deaths are known to have been attributed to it directly. All but one of the 25 or so dangerous scorpions are in the family Buthidae. The only other dangerous species is Hemiscorpius lepturus (Iran, Iraq, Pakistan, and Yemen) in the family Hemiscorpiidae, which has been shown to have an unusually toxic hemolytic venom.”  Your specimen does not look like Centruroides exilicauda in our opinion.

What's That Bug? does not endorse extermination

3 Responses to Scorpion

  1. phxdoug says:

    I Believe that this is Red Scorpion … description below matches the picture. Orange-red body with transparent red legs.

    Information from http://www.orkin.com/stinging-pests/scorpions/red-scorpion

    – Red Scorpion –

    The Indian Red Scorpion (Buthus Tamulus; also called Mesobuthus Tamulus in some taxonomical records) is one of the most dangerous species of scorpions known to man. Though quite common, this scorpion isn’t often seen. This scorpion earned itself the “scorpion with a red spot” moniker due to its orange-red body with transparent red legs.

    Like most other scorpions, reds are nocturnal arachnids. They usually prey on insects, spiders, centipedes, and even on smaller scorpion varieties. They detect their prey by sensing vibrations in the air and in the earth. This is done through the use of special organs in their legs, and an array of fine sensory hairs.

    In the morning, Red-Spotted Scorpions return to their burrows and nests for their daytime rest. But this isn’t all their nests are for: when encountering stronger, bigger enemies, they will also retreat into their burrows. This type of scorpion is mainly found in arid climates, particularly in deserts and sand dunes.

    Red Scorpions are actually one of the smallest specie of scorpions. They share many typical characteristics with other species of scorpions, especially the large pair of pincher-like pedipalps, which they use to hold prey to keep them still.

    When hunting or whenever it feels pressed or cornered, a Red Scorpion will use its stinger to protect itself or to incapacitate its prey. A person who gets stung by a Red Scorpion can actually die within hours; these scorpions with a red spot are known to carry a very potent neurotoxin that contains a mix of salts, small molecules, peptides, and proteins.

    Its venom contains neurotoxins that can be especially deadly to children since their bodies are small. This venom can cause very serious effects on the human heart. It can also cause hypertension in humans, which can be deadly when combined with cardiac failure or irregularity. The result is the aforementioned effects, as well as losing the ability to breathe due to paralysis of the lungs. According to research studies, this venom has been found to interfere with the normal operation of muscles, particularly those that need regular and uninterrupted orders (i.e. cardiac muscles, diaphragm, etc.) from the central nervous system in order for them to function.

    A sting by the Red Scorpion can be very painful at the onset. Other immediate symptoms of the Red Scorpion poisoning include vomiting and nausea, palpitation, and excessive production of saliva.

  2. Steve says:

    Could Pseudouroctonus apacheanus be a possibility?
    The range seems to match. “Distribution: Mountains and canyons from near Del Rio, Texas to the Big Bend and Carlsbad Caverns National Parks, westward across SW New Mexico and northern Mexico to the Baboquivari Mountains in southern Arizona.”

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